Rotorcraft Dynamics


Rotor Wake Modeling 

During the flight of
airplane propellers, helicopters, and tilt rotors, the rotor wake
undergoes important dynamic motions that profoundly influence vehicle
dynamics. This project seeks to correctly model this behavior.


Aeroelasticity 

Aeroelastic modelling of helicopter rotors with unsteady
aerodynamics and nonlinear structural deformations. Computation of
vibration and stability.


Response to Stall 

Structural/aerodynamic interaction due to dynamic stall of
wings and rotors. Trim methodologies in the presence of stall.


Trim and Stability 

Solution of rotor dynamic equations with engine dynamics
and multiple rotors involves solution of periodiccoefficient differential
equations. This task deals with finding efficient solution strategies for
this problem.


Refereed Publications

 Peters, D. A. and Hohenemser, K. H., “Applications of the Floquet Transition Matrix to Problems of Lifting Rotor
Stability,” Journal of the American Helicopter Society, Vol. 16, No. 2, April 1971, pp. 2533.

 Ormiston, R. A. and Peters, D. A., “Hingeless Helicopter Rotor Response with Nonuniform Inflow and Elastic
Blade Bending,” Journal of Aircraft, Vol. 9. No. 10, October 1972, pp. 730736.

 Peters, D. A. and Ormiston, R. A., “Effects of SecondOrder Blade Bending on the Angle of Attack of Hingeless
Rotor Blades,” Journal of the American Helicopter Society, Vol. 18, No. 4, October 1973, pp. 4548.

 Peters, D. A., “FlapLag Stability of Helicopter Rotor Blades in Forward Flight,” Journal of the American
Helicopter Society, Vol. 20, No. 4, October 1975, pp. 213.

 Hodges, Dewey, H. and Peters, David A., “On the Lateral Buckling of Uniform Slender Cantilever Beams,”
International Journal of Solids and Structures, Vol. 11, No. 12, December 1975, pp. 12691280.

 Peters, D. A., “The Effect of Principal Bending Curvature on the Lateral Buckling of Uniform Slender Beams,”
Journal of Applied Mechanics, Vol. 44, No. 2, June 1977, pp. 311316.

 Hsu, T. K. and Peters, D. A., “A Simple Dynamic Model for Simulating DraftGear Behavior in RailCar
Impacts,” Journal of Engineering for Industry, Vol. 100, No. 4, November 1978, pp. 492496.

 Peters, D. A. and Wu, Julian J., “Asymptotic Solutions to a Stability Problem,” Journal of Sound and Vibration,
Vol. 59, No. 4, October 1978, pp. 591610.

 Peters, D. A., “Optimum Design of a Hydraulic Cushion Unit,” SIAM Review, Vol. 20, No. 4, October 1978, pp.
118122.

 Schrage, D. P. and Peters, D. A., “Effect of Structural Coupling Parameters on the FlapLag Forced Response of a
Rotor Blade in Forward Flight Using Floquet Theory,” Vertica, Vol. 3, No. 6, June 1979, pp. 177185.

 Gaonkar, G. H. and Peters, D. A., “Use of MultiBlade Coordinates for Helicopter FlapLag Stability with
Dynamic Inflow,”' Journal of Aircraft, Vol. 17, No. 2, February 1980, pp. 112118.

 Peters, D. A. and Gaonkar, Gopal H., “Theoretical FlapLag Damping with Various Dynamic Inflow Models,”
Journal of the American Helicopter Society, Vol. 25, No. 2, April 1980, pp. 2936.

 Peters, D. A. and Hodges, D. H., “InPlane Vibration and Buckling of a Rotating Beam Clamped off the Axis of
Rotation,” Journal of Applied Mechanics, Vol. 47, No. 2, June 1980, pp. 398402.

 Pitt, Dale M. and Peters, D. A., “Theoretical Prediction of DynamicInflow Derivatives,” Vertica, Vol. 5, No. 1,
March 1981, pp. 2134.

 Hsu, T. K. and Peters, D. A., “Coupled Rotor/Airframe Vibration Analysis by a Combined HarmonicBalance,
ImpedanceMatching Method,” Journal of the Am. Helicopter Society, Vol. 27, No. 1, Jan. 1982, pp. 2534.

 Peters, David A. and Chen, ShuiYaung, “Momentum Theory, Dynamic Inflow, and the VortexRing State,”
Journal of the American Helicopter Society, Vol. 27, No. 3, July 1982, pp. 1824.

 Gaonkar, G. H., Sastry, V. V. S. S., Reddy, T. S. R., Nagabhushanam, J., and Peters, D. A., “The Use of Actuator
Disc Dynamic Inflow for Helicopter FlapLag Stability,” Journal of the American Helicopter Society, Vol. 28, No. 3, July 1983, pp. 7988.

 Peters, David A., Kim, Byung S., and Chen, J. S., “Calculation of Trim Settings for a Helicopter Rotor by an
Optimized Automatic Controller,” Journal of Guidance, Control, and Dynamics, Vol. 7, No. 1., JanuaryFebruary 1984, pp. 824834.

 Peters, David A., “Toward a Unified Lift Model for Use in Rotor Blade Stability Analyses,” Journal of the
American Helicopter Society, Vol. 30, No. 3, July 1985, pp. 3242.

 Peters, David A., Rossow, Mark, P., Korn, Ko, Timothy, “Design of Helicopter Rotor Blades for Optimum
Dynamic Characteristics,” Computers and Mathematics with Applications, Vol. 12A, No. 1, January 1986, pp. 85109.

 Gaonkar, Gopal H. and Peters, D. A., “Effectiveness of Current DynamicInflow Models in the Correlation of
Experimental Rotor Response Data in Hover and in Forward Flight,” Journal of the American Helicopter Society, Vol. 31, No. 2, April 1986, pp. 4757.

 Hodges, Dewey H., Peters, David A., Pierce, G. Alvin, and Jonnalagadda, V. R. P., “Comment on Nonlinear
Deformation of Rotating Beams  An Alternate Method of Formulation,” Journal of the American Helicopter Society, Vol. 31, No. 3, July 1986, pp. 7071.

 Karunamoorthy, Swami and Peters, David, A., “Use of Hierarchical Elastic Blade Equations and Automatic Trim
for Helicopter Vibration Analysis,” Vertica, Vol. 11, Nos. 12, January 1987, pp. 233248.

 Stephens, Wendell B. and Peters, David A., “Rotor Body Coupling Revisited,” Journal of the American
Helicopter Society, Vol. 31, No. 1, January 1987, pp. 6872.

 Peters, David A. and Chouchane, M., “Effect of Dynamic Stall on Helicopter Trim and FlapLag Response,”
Journal of Fluids and Structures, Vol. 1. No. 3, July 1987, pp. 299318.

 Peters, David A., “Modelling of Unsteady Aerodynamics for RotaryWing Aeroelasticity,” Mathematical and
Computer Modelling, Proceedings of Sixth International Conference, Pergamon, Vol. 11, 1988, pp. 293297.

 Peters, David A. and Izadpanah, Amir P., “hpVersion Finite Elements for the SpaceTime Domain,”
Computational Mechanics, Vol. 3, No. 1, 1988, pp. 7388.

 Chiu, Y. D. and Peters, David A., “Numerical Solutions of Induced Velocities by SemiInfinite Tip Vortex
Lines,” Journal of Aircraft, Vol. 25, No. 5, May 1988, pp. 684694.

 Peters, David A. and HaQuang, Ninh, “Dynamic Inflow for Practical Applications,” Journal of the American
Helicopter Society, Vol. 33, No. 4, October 1988, pp. 6468.

 Gaonkar, Gopal H. and Peters, David A., “Review of Dynamic Inflow Modeling for Rotorcraft Flight Dynamics,”
Vertica, Vol. 12, No. 3, 1988, pp. 213242.

 Hodges, Dewey H., Crespo da Silva, Marcelo R. M., and Peters, David A., “Nonlinear Effects in the Static and
Dynamic Behavior of Beams and Rotor Blades,” Vertica, Vol. 12, No. 3, 1988, pp. 243256.

 Chiu, YihWan and Peters, David A., “Extension of Classical Tip Loss Formulas,” Journal of the American
Helicopter Society, Vol. 34, No. 2, April 1989, pp. 6871.

 Peters, David A., Boyd, David Doug, and He, Cheng Jian, “A FiniteState InducedFlow Model for Rotors in
Hover and Forward Flight,” Journal of the Amer. Helicopter. Soc., Vol. 34, No. 4, Oct. 1989, pp. 517.

 Fuh, JonShen, Panda, Brahmananda, and Peters, David A., “Assembly of FiniteElement Helicopter Subsystems
with Large Relative Rotations,” Journal of the American Helicopter Society, Vol. 35, No. 2, April 1990, pp.6068.

 Peters, David A., Chouchane, M., and Fulton, M., “Helicopter Trim with FlapLagTorsion and Stall by an
Optimized Controller,” Journal of Guidance, Control, and Dynamics, Special Anniversary Issue, Vol. 13, No. 5, SeptemberOctober 1990, pp. 824834.

 Peters, David A. and Su, Ay, “Effect of Hidden Dynamic States on Floquet Eigenvalues,” Journal of the
American Helicopter Society, Vol. 35, No. 4, October 1990, pp. 7275.

 Peters, David A. and He, ChengJian, “Correlation of Measured Induced Velocities with a FiniteState Wake
Model,” Journal of the American Helicopter Society, Vol. 36, No. 3, July 1991, pp. 5970.

 Su, Ay, Yoo, Kyung M., and Peters, David A., “Extension and Validation of an Unsteady Wake Model for
Rotors,” Journal of Aircraft, Vol. 29, No. 3, MayJune 1992, pp. 374383.

 Peters, David, A. and He, ChengJian, “Optimization of Rotor Blades for Combined Structural, Dynamic, and
Aerodynamic Properties,” Structural Optimization, Vol. 5, No. 12, December, 1992, pp. 3744.

 Peters, David A. and Su, Ay, “The Effect of an Unsteady, ThreeDimensional Wake on Elastic BladeFlapping
Eigenvalues in Hover,” Journal of the American Helicopter Society, Vol. 38, No. 1, January 1993.

 Hou, LinJun and Peters, David A., “Periodic Trim Solutions with hpVersion Finite Elements in Time,”
Mathematical and Computer Modelling, Vol. 17, No. 3, 1993, pp. 2946.

 Karunamoorthy, Swami, Peters, David, and Barwey, Dinesh, “Orthogonal Polynomials for Energy Methods in
Rotary Wing Structural Dynamics,” Journal of the American Helicopter Society, Vol. 38, No. 3, July 1993, pp. 9398.

 He, Chengjian and Peters, David, “Optimum Rotor Interdisciplinary Design with a Finite State Aeroelastic
System,” Mathematical and Computer Modelling, Vol. 18, Nos. 3/4, August 1993, pp. 3751.

 Stumpf, Walter and Peters, David, “An Integrated FiniteState Model for Rotor Deformation, Nonlinear Airloads,
Inflow and Trim,” Mathematical and Computer Modelling, Vol. 18, Nos. 3/4, August 1993, pp. 115130.

 SManjunath, A. R., Nagabhushanum, J., Gaonkar, G., Peters, D., and Su, Ay, “FlapLag Damping in Hover and
Forward Flight with a ThreeDimensional Wake,” Journal of the American Helicopter Society, Vol. 38, No.
4, October 1993, pp. 3749.

 He, Cheng Jian and Peters, David A., “Finite State Aeroelastic Model for Use in Rotor Design Optimization,”
Journal of Aircraft, Vol. 30, No. 5, SeptemberOctober 1993, pp. 777784.

 de Andrade, Donizeti and Peters, David, “Coupling of a StateSpace Inflow to Nonlinear Blade Equations and
Extraction of Generalized Aerodynamic Force Mode Shapes,” Applied Mechanics Reviews, Vol. 46, No. 11, Part II, November 1993, pp. 52955304.

 de Andrade, Donizeti and Peters, David, “Correlation of Experimental FlapLagTorsion Damping  A Case
Study,” Mathematical and Computer Modelling, Vol. 19, Nos. 3/4, March 1994, pp. 135158.

 Peters, David A., Barwey, Dinesh, and Su, Ay, “An Integrated AirloadsInflow Model for Use in Rotor
Aeroelasticity and Control Analysis,” Mathematical and Computer Modelling, Vol. 19, Nos. 3/4, March 1994, pp. 109124.

 Barwey, Dinesh and Peters, David, “Optimization of Composite Rotor Blades with Advanced Structural and
Aerodynamic Modelling,” Mathematical and Computer Modelling, Vol. 19, Nos. 3/4, March 1994, pp. 193219.

 Hou, LinJun and Peters, David A., “Application of Triangular SpaceTime Finite Elements to Problems of Wave
Propagation,” Journal of Sound and Vibration, Vol. 173, June 1994, pp. 611632.

 Peters, David A., “Fast Floquet Theory and Trim for MultiBladed Rotorcraft,” Journal of the American
Helicopter Society, Vol. 39, No. 4, October 1994, pp. 8289.

 Peters, David A., Karunamoorthy, Swami, and Cao, WenMing, “FiniteState Induced Flow Models, Part I: Two
Dimensional Thin Airfoil,” Journal of Aircraft, Vol. 32, No. 2, MarchApril 1995, pp. 313322.

 Peters, David A. and He, Cheng Jian, “FiniteState Induced Flow Models, Part II: ThreeDimensional Rotor
Disk,” Journal of Aircraft, Vol. 32, No. 2, MarchApril 1995, pp. 323333.

 Peters, David A., “Some Observations on the Sinha Approach to Dynamic Response Calculations,” Journal of
Sound and Vibration, Vol. 188, No. 4, December 14, 1995, pp. 617628.

 Peters, David A., and Barwey, Dinesh, “A General Theory of Rotorcraft Trim,” Mathematical Problems in
Engineering, Vol. 2, No. 1, January 1996, pp. 134.

 Wang, Yi Ren, and Peters, David A., “The Lifting Rotor Inflow Mode Shapes and Blade Flapping Vibration
System EigenAnalysis,” Computer Methods in Applied Mechanics and Engineering, Vol. 134, 1996, pp. 91105.

 Peters. David A., “Optimum SpringDamper Design for Mass Impact,” SIAM Review, Vol. 39, No. 1, March
1997, pp. 118122.

 Tang, Deman, Peters, David A., and Dowell, Earl H., “ReducedOrder Aerodynamic Model for Blade Response
Using Inflow Eigenmodes,” Journal of the American Helicopter Society, Vol. 43, No. 4, October 1998, pp. 342351.

 Shang, Xiaoyang, Hodges, Dewey H., and Peters, David A., “Aeroelastic Stability of Composite Hingeless Rotors
with FiniteState Unsteady Aerodynamics  Part I: Formulations,” Journal of the American Helicopter Society, Vol. 44, No. 3, July 1999, pp. 206221.

 Hodges, Dewey H., and Peters, David A., “LateralTorsional Buckling of Cantilevered Elastically Coupled
Composite Strip and IBeams,” International Journal of Solids and Structures, Vol. 38, No. 9, 2001, pp. 15851603.

 Krothapalli, K.R., Prasad, J.V.R., Peters, D.A., “Helicopter Rotor Dynamic Inflow Modeling for Maneuvering
Flight,” Journal of the American Helicopter Society, Vol. 46, No. 2, April 2001, pp. 129139.

 Morillo, Jorge and Peters, David. "Velocity Field Above a Rotor Disk by a New Dynamic Inflow Model,"Journal of Aircraft, Vol. 39, No. 5, Sept. – Oct. 2002, pp. 731738.

 Peters, David A., Morillo, Jorge, and Nelson, Adria M., "New Developments in Dynamic Wake Modeling for Dynamics Applications," Journal of the American Helicopter Society, Vol. 48, No. 2, April 2003, pp. 120127.

 Zhao, J., Prasad, J.V.R., Peters, D.A., “Rotor Wake Distortion Model for Helicopter Maneuvering Flight,”Journal of the American Helicopter Society, Vol. 49, No. 4, Oct. 2004, pp. 414424.

 Yu, Ke and Peters, David A., “Nonlinear ThreeDimensional StateSpace Modeling of Ground Effect with a Dynamic Flow Field,” Journal of the American Helicopter Society, Vol. 50, No. 3, July 2005, pp 259268.

 Peters, David A. and He, Cheng Jian, “Modification of MassFlow Parameter to Allow Smooth Transition Between Helicopter and Windmill States,” Journal of the American Helicopter Society, Vol. 51, No. 3, July 2006, pp. 275278.

 Peters, David A., Hsieh, MongChe, and Torrero, Almudena, “A StateSpace Airloads Theory for Flexible Airfoils,” Journal of the American Helicopter Society, Vol. 51, No. 4, October 2007, pp. 329342.

 Peters, David A., “TwoDimensional Incompressible Unsteady Airfoil Theory – An Overview,” Journal of Fluids and Structures, Vol. 24, No. 3, July 2008, pp. 295312.

 Peters, David A., “How Dynamic Inflow Survives in the Competitive World of Rotorcraft Aerodynamics,” the 2008 Alexander Nikolsky Lecture, Journal of the American Helicopter Society, Vol. 54, No. 1, January 2009, pp. 115.

 Bain, Jeremy, Sankar, Lakshmi, Prasad, J.V.R., Peters, David, and He, Chengjian, “Computational Modeling of Variable Droop Leading Edge in Forward Flight,” Journal of Aircraft, Vo. 46, No. 2, MarchApril 2009, pp.617626.

 Peters, David A. and Lieb, Sydnie M., “Interpretation of Floquet Eigenvalues and Eigenvectors for Periodic Systems,” Journal of the Amer. Helicopter Society, Vol. 56, No. 3, July 2011, pp. 0320011 to 03200111.

 Peters, David A. and Rong, Xi, "Operational Parameters for Yawed Wind Turbines," International Journal of Aerospace Engineering, Vol. 2011, Article ID 635750, June 2011. doi:10.1155/2011/635750.

 Ulrich, Xialing and Peters, David A., "Sinusoidal Locomotion of a Flexible Wing at High Reynolds Numbers,"submitted to the Journal of Fluids and Structures, January 2012.

 Peters, David A. and Modarres, Ramin, "A Compact ClosedForm Solution for the Optimum InducedFlow Distribution of an Ideal Wind Turbine," Wind Energy, 6 FEB 2013, DOI: 10.1002/we.1597.

 Gaonkar, Gopal, "Reflections on Professor Kurt Hohenemser's Pioneering Contributions to Helicopter Theory and Development," Journal of the American Helicopter Society, to appear 2013.

Paper Presentations and Proceedings

 Peters, David A. and Hohenemser, Kurt H., “Application of the Floquet Transition Matrix to Problems of Lifting Rotor Stability,” Proceedings of the 26th Annual National Forum of the American Helicopter Society, Washington, DC, June 1970, Paper No. 412.

 Ormiston, R. A. and Peters, D. A., “Hingeless Rotor Response with Nonuniform Inflow and Elastic Blade Bending  Theory and Experiment,” AIAA 10th Aerospace Sciences Meeting, San Diego, California, January 1972, AIAA Paper No. 7265.

 Peters, David A., “Hingeless Rotor Frequency Response with Unsteady Inflow,” Proceedings of the American
Helicopter Society Dynamics Specialists' Meeting, NASA Ames Research Center, NASA SP352, February 1974, pp. 112.

 Peters, D. A., “The Sliding Sill Underframe in Impact Situations,” ASME Paper 76WA/RT13, presented at the ASME Winter Annual Meeting, New York, December 510, 1976.

 Peters, David A., “The Effect of Principal Bending Curvature on the Lateral Buckling of Uniform Slender Beams,” presented at the Applied Mechanics Summer Conference, Yale University, New Haven, CT, June 1517, 1977, ASME Paper No. 77APM22.

 Hsu, TK and Peters, D. A., “A Simple Dynamic Model for Simulating DraftGear Behavior in RailCar Impacts,” presented at the Rail Transportation Conference, St. Paul, MN, April 1112, 1978, ASME Paper No. 78RT2.

 Wei, FS. and Peters, D. A., “Lag Damping in Autorotation by a Perturbation Method,” Proceedings of the 34th Annual Forum of the American Helicopter Society, Washington, D. C., May 1517, 1978, Paper, 7825.

 Peters, D. A. and Wu, J. J., “Asymptotic Solutions to a Stability Problem,” Transactions of the 24th Conference of Army Mathematicians, ARO Report 791, June 1978.

 Schrage, D. P. and Peters, D. A., “Comparison of the Effect of Structural Coupling Parameters on FlapLag Forced Response and Stability of a Helicopter Rotor Blade in Forward Flight,” Army Science Conference, West Point, New York, June 1978.

 Schrage, D. P. and Peters, David A., “Comparison of the Effect of Structural Coupling Parameters on FlapLag Forced Response and Stability of a Helicopter Rotor Blade in Forward Flight,” Proceedings of the Fourth European Rotorcraft Forum, Stresa, Italy, September 1315, 1978, Paper No. 23.

 Gaonkar, Gopal H. and Peters, D. A., “FlapLag Stability with Dynamic Inflow by the Method of MultiBlade Coordinates,” AIAA Structures, Structural Dynamics and Materials Conference, St. Louis, April 1979, AIAA Paper 790729.

 Peters, David A. and Gaonkar, Gopal H., “Theoretical FlapLag Damping with Various Dynamic Inflow Models,”Proceedings of the 35th Annual National Forum of the American Helicopter Society, Washington, D. C., May 1979, Paper No. 7920.

 Peters, David A., “The Effect of Rotation on Structural Stiffness,” Proceedings of the Fifth World Conference on the Theory of Machines and Mechanisms, Montreal, July 813, 1979.

 Diboll, W. B. and Peters, David A., “Coupler Override Mechanisms,” presented at the ASME Winter Annual Meeting, New York, December 1979, ASME Paper 79WA/RT9.

 Hsu, TK. and Peters, D. A., “Coupled Rotor/Airframe Vibration Analysis by a Combined HarmonicBalance, ImpedanceMatching Method,” Proceedings of the 36th Annual National Forum of the American Helicopter Society, Washington, D. C., May 1980.

 Peters, D. A. and Zvolanek, Ivo, “A Physical Explanation of Parametric Instabilities in Unsymmetric Rotors,”Second International Conference on Vibrations in Rotating Machinery, Cambridge, England, September 24, 1980, Paper C261/80.

 Pitt, Dale M. and Peters, David A., “Theoretical Predictions of DynamicInflow Derivatives,” Proceedings of the Sixth European Rotorcraft Forum, Bristol, September 1619, 1980, Paper No. 47.

 Peters, David A. and Kim, Byung S., “Control Settings for a Trimmed, Stalled Rotor by an Automatic Feedback System,” AIAA Dynamics Specialists' Conference, Atlanta, Georgia, April 1981, AIAA Paper No. 810617CP.

 Gaonkar, Gopal H., Mitra, A. K., and Peters, D. A., “Feasibility of a Rotor FlightDynamics Model with FirstOrder Cyclic Inflow and MultiBlade Modes,” AIAA Dynamic Specialists' Conference, Atlanta, Georgia, April 1981, AIAA paper No. 810611CP.

 Peters, David A. and Kim, Byung, S., “Control Settings for a Trimmed, Stalled Rotor by an Automatic Feedback System,” Proceedings of the AIAA 22nd Structures, Structural Dynamics, and Materials Conference, Atlanta, Georgia, April 1981, Paper No. 810617, pp. 463470.

 Peters, David A. and Izadpanah, Amir P., “Helicopter Trim by Periodic Shooting with NewtonRaphson Iteration,” 37th Annual Forum of the American Helicopter Society, New Orleans, Louisiana, May 1981, Paper 8123, pp. 217226.

 Gaonkar, G. H., Sastry, V. V. S. S., Reddy, T. S. R., and Peters, David A., “On the Adequacy of Modeling Dynamic Inflow for Helicopter FlapLag Stability,” Eighth European Rotorcraft and Powered Lift Aircraft Forum, AixenProvence, France, August 31September 3, 1982, Paper No. 3.11.

 Peters, David A., Ko, Timothy, Korn, Alfred, and Rossow, Mark, “Design of Helicopter Rotor Blades for Desired Placement of Natural Frequencies,” Proceedings of the 39th Annual National Forum of the American Helicopter Society, St. Louis, May 1012, 1983.

 Peters, David A., “Importance of Steady and Dynamic Inflow on the Stability of Rotor Body Systems,”Proceedings of the ITR Methodology Assessment Workshop on Rotorcraft Modeling, NASAAmes Research Center, June 2122, 1983.

 Pitt, Dale M. and Peters, David A., “Rotor DynamicInflow Derivatives and Time Constants from Various Inflow Models,” Ninth European Rotorcraft Forum, Stresa, Italy, September 1315, 1983, Paper No. 55.

 O'Malley, James, Izadpanah, Amir P., and Peters, David, A., “Comparisons of Three Numerical Trim Methods for Rotor Airloads,” Ninth European Rotorcraft Forum, Stresa, Italy, September 1315, 1983, Paper No. 58.

 Peters, David A., “Toward a Unified Model for Use in Rotor Blade Stability Analyses,” Proceedings of the 40th Annual Forum of the American Helicopter Society, Arlington, Virginia, May 1618, 1984, pp. 525538.

 Swift, Andrew H. P. and Peters, David A., “Special Topics in the Aerodynamics of Wind Turbines,” presented at the 21st Annual Meeting of the Society of Engineering Science, Virginia Polytechnic Institute, Blacksburg,
October 15, 1984.

 Huang, MingSheng and Peters, David A., “Coupled RotorBody Vibrations with Inplane Degrees of Freedom,”Proceedings of the 2nd Decennial Specialists' Meeting on Rotorcraft Dynamics, Ames Research Center, November 79, 1984.

 Gaonkar, Gopal H. and Peters, David A., “A Review of Dynamic Inflow and its Effect on Experimental Correlations,” Proceedings of the 2nd Decennial Specialists' Meeting on Rotorcraft Dynamics, Ames Research Center, November 79, 1984.

 Peters, David A. and Ventura, Liliana., “Application of Various Techniques to the Calculation of Transonic Flutter Boundaries,” presented at the ASME Vibration and Sound Conference, Cincinnati, Ohio, September 1113, 1985.

 Peters, David A., “The Effect of Rotation on Structural Stiffness,” Proceedings of the Fifth World Conference on the Theory of Machines and Mechanisms, Montreal, July 813, 1979.

 Gaonkar, Gopal H. and Peters, David A., “Review of Floquet Theory in Stability and Response Analyses of Dynamic Systems with Periodic Coefficients,” Raymond L. Bisplinghoff Conference on Recent Trends in Aeroelasticity, Structures, and Structural Dynamics, Gainesville, Florida, February 67, 1986.

 Gaonkar, Gopal H. and Peters, David A., “Review of Dynamic Inflow Modeling for Rotorcraft Flight Dynamics,”AIAA 27th SDM Conference, San Antonio, Texas, May 1920, 1986.

 Karunamoorthy, Swami and Peters, David A., “Use of Hierarchical Elastic Blade Equations and Automatic Trim for Helicopter Vibration Analysis,” 42nd Annual Forum of the American Helicopter Society, Washington, D.C., June 24, 1986, pp. 6380.

 Peters, David A. and Izadpanah, Amir P., “Generalization of Hamilton's Law to a Bilinear Formulation with Application to Helicopter Stability,” presented at the first World Congress on Computational Mechanics, Austin, Texas, September 2225, 1986.

 Peters, David A., “The Importance of Aerodynamics on Rotorcraft Dynamics,” Invited presentation at the AHS Specialists' Meeting on Aerodynamics/Acoustics, Arlington, Texas, February 2527, 1987.

 Ormiston, Robert A., Warmbrodt, William G., Hodges, Dewey H., and Peters, David A., “Rotorcraft Aeroelastic Stability: ArmyNASA Research 19671987,” Proceedings of the NASA/Army Rotorcraft Technology Conference, NASA Ames Research Center, March 1719, 1987, NASA Conference Publication 2495, Volume I  Aerodynamics, and Dynamics and Aeroelasticity, pp. 353529.

 Peters, David A. and He, ChengJian, “A ClosedForm Unsteady Aerodynamic Theory for Lifting Rotors in Hover and Forward Flight,” presented at the 43rd Annual National Forum of the American Helicopter Society, St. Louis, May 1987, pp. 839866.

 Peters, David A., “Modelling of Unsteady Aerodynamics for RotaryWing Aeroelasticity,” Proceedings of the Sixth International Conference on Mathematical Modelling, St. Louis, August 47, 1987.

 Fuh, JonShen, Panda, Brahmananda, and Peters, David A., “Efficient Assembly of FiniteElement Subsystems with Large Relative Motions,” Second International Conference on Rotorcraft Basic Research, University of Maryland, February 1618, 1988.

 Schrage, D. P., Peters, D. A., Prasad, J. V. R., Stumpf, Walter, and He, ChengJian, “Helicopter Stability and Control Modeling Improvements and Verification on Two Helicopters,” Proceedings of the Fourteenth European Forum, Milano, Italy, September 2023, 1988.

 Peters, David A. and Cheng, Y. P., “Optimization of Rotor Blades for Combined Structural, Performance, and Aeroelastic Characteristics,” Proceedings of the Second NASA/Air Force Symposium on Recent Experiences in Multidisciplinary Analysis and Optimization, NASALangley Research Center, September 2830, 1988.

 Peters, David A. and He, ChengJian, “Comparison of Measured Induced Velocities with Results from a ClosedForm FiniteState Wake Model in Forward Flight,” Proceedings of the 45th Annual National Forum of the American Helicopter Society, Boston, May 2224, 1989, pp. 533550.

 Peters, David A. and Su, Ay, “The Effect of an Unsteady ThreeDimensional Wake on Elastic BladeFlapping Eigenvalues in Hover,” Proceedings of the 45th Annual National Forum of the American Helicopter Society, Boston, May 2224, 1989, pp. 9991016.

 Peters, David A., Chouchane, Mnaouar, and Fulton, Mark, “Use of an Optimized Controller and a FiniteState Model to Find Trimmed Helicopter Flight Controls,” Proceedings of the Fifteenth European Rotorcraft Forum, The Netherlands, September 1215, 1989.

 Kwon, Oh J., Hodges, Dewey H., Peters, David A., and Sankar, L. N., “Application of a Panel Method to Aeroelasticity Stability of Rotors in Hover,” Proceedings of the International Symposium on Boundary Element Methods, East Hartford, October 24, 1989.

 Peters, David A., He, ChengJian, and Stumpf, Walter, “Combined Use of the FiniteState Lift and Inflow Model for Rotorcraft Modeling” Workshop on Dynamics and Aeroelasticity Stability Modeling of Rotorcraft Systems, Duke University, March 1214, 1990.

 Hodges, Dewey H., Borri, Marco, and Peters, David A., “Space/TimeDomain Finite Elements for Structures, Dynamics, and Control,” Workshop on Dynamics and Aeroelastic Stability Modeling of Rotorcraft Systems, Duke University, March 1214, 1990.

 Schrage, Daniel P., Peters, David A., and McKeithan, Clifford M., “The Georgia Tech Center for Excellence for Rotary Wing Aircraft Technology (CERWAT)An Unqualified Success,” Proceedings of the Annual Conference of the ASEE, Toronto, June 2428, 1990.

 He, ChengJian and Peters, David A., “Optimization of Rotor Blades for Combined Structural, Dynamic, and Aerodynamic Properties,” Proceedings of the Third Air Force/NASA Symposium on Recent Advances in Multidisciplinary Analysis and Optimization, San Francisco, September 2426, 1990.

 Peters, David A. and He, ChengJian, “An Aeroelastic Analysis with a Generalized Dynamic Wake,” Proceedings of the AHS International Technical Specialists' Meeting on Rotorcraft Basic Research, Atlanta, March 2527, 1991.

 Peters, David A. and Hou, LinJun, “Periodic Trim Solutions with hpVersion Finite Elements in Time,” Proceedings of the AHS International Technical Specialists' Meeting on Rotorcraft Basic Research, Atlanta, March 2527, 1991.

 Chiu, Danny Y. and Peters, David A., “Aerodynamic Parametric Studies and Sensitivity Analysis for Rotor Blades in Axial Flight,” Proceedings of the AHS International Technical Specialists' Meeting on Rotorcraft Basic Research, Atlanta, March 2527, 1991.

 Peters, David A. and He, ChengJian, “Integration of Dynamic, Aerodynamic, and Structural Optimization of Rotor Blades,” NASA Interdisciplinary Office Optimization Workshop, April 11, 1991.

 Peters, David A. and Su, Ay, “An Integrated AirloadsInflow Model for Use in Rotor Aeroelasticity and Control Analysis,” Proceedings of the 47th Annual National Forum of the American Helicopter Society, Phoenix, May 68, 1991, pp. 2540.

 Wang, YiRen and Peters, David A., “The Effect of Wake Dynamics on Rotor Eigenvalues in Forward Flight,”presented at the Fourth Workshop on Dynamics and Aeroelastic Stability Modeling of Rotorcraft Systems, University of Maryland, November 1921, 1991.

 Peters, David A. and Hou, LinJun, “Displacement hpVersion SpaceTime Finite Elements in Elastodynamics,”Proceedings of the Sixteenth South Eastern Conference on Theoretical and Applied Mechanics, Nashville, TN, April 1214, 1992.

 Manjunath, Nagabhushanam, Gaonkar, Gopal H., Peters, David A., and Su, Ay, “FlapLag Damping in Hover and Forward Flight with a ThreeDimensional Wake,” presented at the Fourth Workshop on Dynamics and Aeroelastic Stability Modeling of Rotorcraft Systems, University of Maryland, November 21, 1991; and Proceedings of the 48th Annual National Forum of the American Helicopter Society, Washington, June 35, 1992, pp. 10611080.

 de Andrade, Donizeti and Peters, David A., “Application of FiniteState Inflow to FlapLagTorsion Damping in Hover,” Proceedings of the Eighteenth Rotorcraft Forum, Avignon, France, September 1518, 1992.

 He, ChengJian and Peters, David A., “Analytical Formulation of Optimum Rotor Interdisciplinary Design with a ThreeDimensional Wake,” Proceedings of the Fourth AIAA/Air Force/NASA/OAI Symposium on Multidisciplinary Analysis and Optimization, Cleveland, Ohio, September 2123, 1992.

 Yoo, K. M., Hodges, D. H., and Peters, David A., “An Interactive Numerical Procedure for Rotor Aeroelastic Stability Using Elastic Lifting Surface,” 18th Congress of the International Council of the Aeronautical Sciences, Beijing, China, September 2125, 1992, Paper ICAS926.6.3.

 de Andrade, Donizeti and Peters, David A., “Coupling of StateSpace Inflow to Nonlinear Blade Equations and Extraction of Generalized Aerodynamic Force Mode Shapes,” 3rd Pan American Congress of Applied Mechanics Sao Paulo, Brazil, January 48, 1993.

 Nibbelink, Bruce D. and Peters, David A., “Flutter Calculations for Fixed and Rotating Wings with StateSpace Inflow Dynamics,” Proceedings of the 34th AIAA SDM Conference, La Jolla, California, April 1921, 1993.

 Peters, David A. and Khan, Azhar, “Rotor Performance and Helicopter Mission Optimization with a QuasiStatic Inflow Theory,” Proceedings of the AHS Specialists' Meeting on Rotorcraft MultiDisciplinary Design Optimization, Georgia Tech., Atlanta, April 2729, 1993.

 Peters, David A., “Rotorcraft Multidisciplinary Design Optimization – A University Perspective,” presented at the AHS Specialists' Meeting on Rotorcraft Multidisciplinary Design Optimization, Georgia Tech, Atlanta, April 2729, 1993.

 de Andrade, Donizeti and Peters, David, “Correlation of Experimental FlapLagTorsion Damping, a Case Study,” Proceedings of the 49th Annual National Forum of the American Helicopter Society, St. Louis, May 1921, 1993, pp. 10111028.

 Pember, Richard and Peters, David, “Validation of an Integrated FiniteState, DynamicStall, Inflow Model in Two Dimensions,” presented at the Fifth Workshop on Dynamics and Aeroelastic Stability Modeling of Rotorcraft Systems, Rensselaer Polytechnic Institute, October 1820, 1993.

 Fuh, JonShen, Panda, Brahmananda, and Peters, David A., “Efficient Assembly of FiniteElement Subsystems with Large Relative Motions,” Second International Conference on Rotorcraft Basic Research, University of Maryland, February 1618, 1988.

 Barwey, Dinesh and Peters, David, “Optimization of Composite Rotor Blades with Advanced Structural and Aerodynamic Modelling,” Proceedings of the American Helicopter Society Aeromechanics Specialists' Conference, San Francisco, January 1921, 1994.

 Stettner, Martin, Schrage, Daniel P. and Peters, David A., “Application of a StateSpace Wake Model to Tiltrotor Wing Unsteady Aerodynamics,” Proceedings of the American Helicopter Society Aeromechanics Specialists' Conference, San Francisco, January 1921, 1994.

 Peters, David A. and Karunamoorthy, Swami, “StateSpace Inflow Models for Rotor Aeroelasticity,” Proceedings of the Holt Ashley 70th Anniversary Symposium”, Stanford University, September 2223, 1993, pp. 828837, and AIAA 12th Applied Aerodynamics Conference, Colorado Springs, June 2023, 1994.

 Peters, David A. and Johnson, Mark J., “FiniteState Airloads for Deformable Airfoils on Fixed and Rotating Wings,” Aeroelasticity and Fluid/Structures Interaction Problems, a MiniSymposium, ASME Winter Annual Meeting, Chicago, Nov. 611, 1994, AD  Vol. 44, pp. 128.

 Peters, David A., and Barwey, Dinesh, “A General Theory of Rotorcraft Trim,” 36th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, New Orleans, April 1012, 1995, Paper No. 951451.

 Peters, David A. and Johnson, Mark J., “FiniteState Airloads for Deformable Airfoils on Fixed and Rotating Wings,” Aeroelasticity and Fluid/Structures Interaction Problems, a MiniSymposium, ASME Winter Annual Meeting, Chicago, Nov. 611, 1994, AD  Vol. 44, pp. 128.

 Peters, David A., “Fast Floquet Theory and Trim for MultiBladed Rotorcraft,” Proceedings of the 51st AnnualNational Forum of the American Helicopter Society, Ft. Worth, May 911, 1995, pp. 444460.

 Peters, David A., and Li, SiHao, “A Combined PeriodicShooting, AutoPilot Technique for Rotorcraft Analysis,” Computational Mechanics '95, Proceedings of the International Conference on Computational Engineering Science, Mauna Lani, Hawaii, July 30August 3, 1995, pp. 654659.

 Zhao, Bo and Peters, David, “SpaceTime hpFinite Elements with Moving Loads and Moving Constraints,”ASME 15th Biennial Conference on Vibration and Noise, Boston, September 1721, 1995.

 Schmitt, John M., Bayly, Philip V., and Peters, David A., “Stabilization of Periodic FlapLag Dynamics in Rotor Blades,” ASME 15th Biennial Conference on Vibration and Noise, Boston, September 1721, 1995; and AHS 2nd International Aeromechanics Specialists' Conference, Bridgeport, CT, October 1113, 1995.

 Peters, David A., Barwey, Dinesh, and Johnson, Mark J., “FiniteState Airloads Modeling with Compressibility and Unsteady FreeStream,” Sixth International Workshop on Dynamics and Aeroelastic Stability Modeling of Rotorcraft Systems, UCLA, November 810, 1995.

 Barwey, Dinesh and Peters, David A., “Modeling of RadialFlow Stall Effects for Rotor Dynamics,” Sixth International Workshop on Dynamics and Aeroelastic Stability Modeling of Rotorcraft Systems, UCLA, November 810, 1995.

 Peters, David A. and Cao, Wenming, “OffRotor Induced Flow by a FiniteState Wake Model,” 37th AIAA SDM Conference, Salt Lake City, April 1517, 1996, Paper No. 961550.

 Peters, David A. and Beaver, Rochelle D., “Application of Fast Floquet Theory to Rotor Flap Response with Dynamic Inflow,” AIAA Dynamics Specialists' Conference, Salt Lake City, April 1819, 1996, Paper No.961216.

 de Andrade, Donizeti, da Silva Correa, Manoela, and Peters, David A., “New Correlation of Experimental FlapLagTorsion Damping,” Proceedings of the 52nd Annual National Forum of the American Helicopter Society, Washington, DC, June 46, 1996, pp. 137151.

 Peters, David A., Bayly, Phillip, and Li, Sihao, “A Hybrid PeriodicShooting, AutoPilot Method for Rotorcraft Trim Analysis,” Proceedings of the 52nd Annual National Forum of the American Helicopter Society, Washington, DC, June 46, 1996, pp. 780794.

 Zhang, Hong, Prasad, J. V. R., and Peters, D. A., “Finite State Inflow Models for Lifting Rotors in Ground Effect,” Proceedings of the 52nd Annual National Forum of the American Helicopter Society, Washington, DC, June 46, 1996, pp. 15321536.

 Krothapalli, K. R., Prasad, J. V. R., and Peters, David A., “Development of a Comprehensive Wake Theory for Lifting Rotors,” Proceedings of the AIAA Atmospheric Flight Mechanics Conference, San Diego, July 1996.

 Ngo, D. A. and Peters, D. A., “Integrating Manufacturing Cost into the Structural Optimization Design Process,”Proceedings of the 33rd Annual Technical Meeting of the Society of Engineering Science, Tempe, Arizona, October 2023, 1996.

 Nichols, Gregory R. and Peters, David A., “FiniteState Wake Influence Coefficients as Determined from VortexLattice Results,” Proceedings of the Fifth Pan American Congress of Applied Mechanics (PACAM V), San Juan, Puerto Rico, January 24, 1997.

 Peters, David A., and Morillo, Jorge, “Harmonic Balance Approach for Rotorcraft with both Unsteady and Unknown Rotor Speed,” Proceedings of the 38th AIAA Structures, Structural Dynamics, and Materials Conference, Kissimmee, Florida, April 710, 1997, Paper No. 971095.

 Prasad, J., Zhang, H., and Peters, D., “Finite State InGround Effect Inflow Models for Lifting Rotors,”Proceedings of the 53rd Forum of the American Helicopter Society, Virginia Beach, April 29May 1, 1997, pp. 988993.

 Peters, David A., Karunamoorthy, Swami, and Regulez, Guillermo, “A Study on Airfoil Section Flutter with TwoDimensional, FiniteState Aerodynamics,” Proceedings of the Sixth International Conference on Recent Advances in Structural Dynamics, Southampton, England, July 1417, 1997.

 Schmitt, John, Bayly, Philip, and Peters, David, “Stabilization of Periodic FlapLag Dynamics in Rotorcraft,”presented at the IUTAM Symposium on New Applications of Nonlinear and Chaotic Dynamics in Mechanics, Cornell University, July 27August 1, 1997.

 Barocela, Ed, Peters, David, Krothapalli, Krish, and Prasad, J. V. R., “The Effect of Wake Distortion on Rotor Inflow Gradients and OffAxis Coupling,” AIAA Atmospheric Flight Mechanics Conference, New Orleans, Aug. 1113, 1997, Paper No. AIAA973579.

 Peters, David A., Karunamoorthy, Swami, and Sobol, Mike, “Extension of Dynamic Wake Models to Moderate to High Reduced Frequencies,” FSI, AE FIV + N Symposium, ASME International Congress, Dallas, Texas, November 1621, 1997.

 Wang, Xin and Peters, David, “Floquet Analysis in the Absence of Complete Information on States and Perturbations,” Seventh International Workshop on Dynamics and Aeroelastic Stability Modeling, St. Louis, October 1416, 1997.

 Bayly, Philip, Schmitt, John, and Peters, David, “Stabilization of PeriodicCoefficient FlapLag Dynamics through Application of Discrete Control,” Seventh International Workshop on Dynamics and Aeroelastic Stability Modeling, St. Louis, October 1416, 1997.

 Sobol, Michael, Karunamoorthy, Swami, and Peters, David, “Theodorsen Lift Deficiency Function in Perspective of Finite State Paradigm,” Seventh International Workshop on Dynamics and Aeroelastic Stability Modeling, St. Louis, October 1416, 1997.

 Krothapalli, K. R., Prasad, J. V. R., and Peters, D. A., “Improved Wake Geometry Model for a Maneuvering Rotor,” Proceedings of the AHS Technical Specialists' Meeting for Rotorcraft Acoustics and Aerodynamics, Stratford, Connecticut, October 2830, 1997.

 Prasad, J. V. R., Xin, Hong, Peters, D. A., Nagashima, T., and Iboshi, N., “Development and Validation of a Finite State InGround Effect Inflow Model for Lifting Rotors,” AHS Technical Specialists' Meeting for Rotorcraft Acoustics and Aerodynamics, Williamsburg, Virginia, November 2830, 1997.

 Jackson, Timothy and Peters, David, “Convergence of Nonlinear Finite Element Solutions in the Presence of Large Axial Stress Fields,” Proceedings of SECTAM XIX, Deerfield Beach, FL, May 35, 1998.

 Krothapalli, K., Prasad, J. V. R., and Peters D. A., “Study of a Rotor FlapInflow Model Including Wake Distortion Terms,” NATO RTO/SCI Panel Symposium, “System Identification for Integrated Aircraft Development and Flight Testing,” Madrid, Spain, May 57, 1998.

 Peters, Michael H. and Peters, David A., “Discrete Control Theory and Dynamic Observers Applied to Rotorcraft
Stability and Trim,” Proceedings of the 54th Annual National Forum of the American Helicopter Society,
Washington, DC, May 2022, 1998, pp. 684699.

 Xin, Hong, Prasad, J. V. R., Peters, D. A., Nagashima, T., and Iboshi, N., “A Finite State Inflow Model for
Simulation of Helicopter Hovering in Ground Effect,” Proceedings of the 54th Annual National Forum of the
American Helicopter Society, Washington DC, May 2022, 1998, pp. 777784.

 Peters, David A. and Wang, Xin, “Generalized Floquet Theory for Analysis of Numerical or Experimental Rotor
Response Data,” 24th European Rotorcraft Forum, Marseilles, France, September 1517, 1998.

 Krothapalli, Krishnamohan, Prasad, J.V.R., Peters, David A., “Study of a Rotor FlapInflow Model including
Wake Distortion Terms,” Proceedings of the RTO Systems Concepts and Integration Panel, Madrid, Spain,
May 5  7, 1998, NATO RTOMP11, AC/323 (SCI)TP/7, pages 261 to 2610.

 Krothapalli, K.R., Prasad, J.V.R., Peters, D.A., “Helicopter Rotor Dynamic Inflow Modeling for Maneuvering
Flight,” Proceedings of the 55th Annual National Forum of the AHS, The Society for Vertical Flight,
Montreal, May 14 17, 1999, pp. 498510.

 Itoga, et al, “A New Numerical Method for Predicting AeroMechanical Behaviors of a Rotor Hovering at Close
Proximity to Inclined Flat Surface,” Proceedings of the 55th Annual National Forum of the AHS, The Society
for Vertical Flight, Montreal, May 1417, 1999, pp. 511520.

 Xin, et al, “Ground Effect Aerodynamics of Lifting Rotors Hovering Above Inclined Ground Plane,” presented at
the AIAA Applied Aerodynamics and CFD Conference, Norfolk, Virginia, June 28 – July 1, 1999, AIAA –
993223.

 Xin, Hong, Prasad, J.V.R., Peters, D. A., “Dynamic Inflow Modeling for simulation of a Helicopter Operating in
Ground Effect,” presented at the AIAA Modeling and Simulation Technology conference, Portland, Oregon,
August 911, 1999, AIAA – 994114.

 Peters, Michael H., Bayly, Philip V., and Peters, David A., “The Use of Discrete Observer Theory to Trim and
Stabilize Periodic Coefficient Dynamic Systems,” Proceedings of the 25th European Rotorcraft Forum,
Palazzo Salviati, Rome, Italy, Sept. 1416, 1999, paper G24.

 Xin, H., Prasad, J.V.R., Peters, D.A., “Inflow Model for Simulation of Helicopter Flight in Dynamic Ground
Effect,” Proceedings of the 25th European Rotorcraft Forum, Rome, Italy, Sept. 14  16, 1999, Paper No.
H5.

 Peters, David A., “A History of FiniteState Inflow Modeling,'' invited lecture presented at the Army Research
Office Eighth International Workshop on Dynamics and Aeroelastic Stability Modeling,” Pennsylvania State
University, October 1819, 1999.

 Fuehne, C., Peters, D. and Bayly, P., “Application of Generalized Floquet Theory to Numerical and Experimental
Data,” presented at the Army Research Office Eighth International Workshop on Dynamics and Aeroelastic
Stability Modeling, Pennsylvania State University, October 1819, 1999.

 Wasileski, Bryan and Peters, David A., “Simulation of Rotorcraft Response Including the Possibility of Vortex
Ring State,” Proceedings of the 56th Annual National Forum of the AHS, Virginia Beach, May 14, 2000.

 Peters, David A. and Nelson, Adria M., “A TwoDimensional Rotor Inflow Model Developed in Closed Form
from a Galerkin Approach,” Proceedings of the 18th AIAA Applied Aerodynamics Conference, Denver,
Colorado, Aug. 1417, 2000, Paper AIAA20004119.

 Prasad, J.V.R. and Peters, David A., “Inflow Modeling for Maneuvering and InGround Effect Flight,” Huntsville
Simulation Conference, Huntsville, AL, Oct. 45, 2000.

 Peters, David A. and Nelson, Adria M., “A Dynamic Wake Model in Two Dimensions from a Galerkin
Approach,” AHS Aeromechanics Specialists' Meeting, Atlanta, Georgia, Nov. 1314, 2000.

 Peters, David A. and Morillo, Jorge A., “Towards a Complete Dynamic Wake Model in Axial Flow,” AHS
Aeromechanics Specialists' Meeting, Atlanta, Georgia, Nov. 1314, 2000.

 He, Yanyu, Cary, Andrew W., and Peters, David A. "Parametric and Dynamic Modeling for Synthetic Jet Control
of a PostStall Airfoil," 39th AIAA Aerospace Sciences Meeting, Reno, Nevada, January 2001, Paper No.
AIAA 20010733.

 Peters, David A., Morillo, Jorge A., and Nelson, Adria M., “New Developments in Dynamic Wake Modeling for
Dynamics Applications,” Proceedings of the 57th Annual Forum of the American Helicopter Society,
Washington, D.C., May 911, 2001.

 Prasad, J.V.R., Fanciullo, Todd, Jinggen, Zhao, and Peters, David A., “Towards a High Fidelity Rotor Inflow
Model for Maneuvering and InGround Effect Simulation,” Proceedings of the 57th Annual Forum of the
American Helicopter Society, Washington, D.C., May 911, 2001.

 Prasad, J.V.R., Zhao, Jinggen, and Peters, David A., “Modeling of Rotor Dynamic Wake Distortion During
Maneuvering Flight,” Proceedings of the AIAA Atmospheric Flight Mechanics Conference, Montreal,
August 69, 2001, AIAA Paper 20014074..

 Peters, David A., “A Personal Perspective on How the Space Race Molded a Partnership between my Generation,
Universities, and the Aerospace Industry,” Invited paper, presented at the First National Conference on
Recent Advances in Mechanical Engineering, Patras, Greece, Sept. 1720, 2001.

 Morillo, Jorge A. and Peters, David A., “A ThreeDimensional Unsteady Inflow Model from a Galerkin
Approach,” Proceedings of the Ninth International Workshop on Aeroelasticity of Rotorcraft Systems, Army
Research Office/ University of Michigan, Ann Arbor, Oct. 2224, 2001.

 Prasad, J.V.R., Zhao, J., and Peters, D.A., "Study on Dynamic Wake Distortion Effects During Helicopter
Transient Maneuvering Flight," Proceedings of the Ninth International Workshop on Aeroelasticity of
Rotorcraft Systems, Army Research Office, University of Michigan, Ann Arbor, Oct. 2224, 2001.

 Morillo, Jorge A. and Peters, David A., “Extension of Dynamic Inflow Models to Include Mass Injection and Off
Disk Flow," AIAA 40th Aerospace Sciences Meeting & Exhibit, Reno, Nevada, January 1417, 2002, Paper
No. AIAA 20020716.

 Morillo, Jorge A. and Peters, David A., “Comparison of Exact TimeDomain Solutions for Rotor Inflow with
FiniteState Results,” Proceedings of the 43rd AIAA/ASME/ASCE/AHS Structures, Structural Dynamics and
Materials Conference, Denver, April 2225, 2002.

 Rojas, Pilar, Peters, David A., and Karunamoorthy, Swami, “TwoDimensional Inflow Above Disk for an
Actuator Strip in Axial Flow,” Proceedings of the 20th AIAA Applied Aerodynamics Conference, St. Louis,
June 2426, 2002, AIAA Paper No. 20022814.

 Zhao, Jinggen, Prasad, J.V.R., and Peters, David A., "Dynamic Rotor Wake Distortion Model for Helicopter
Maneuvering Flight," Proceedings of the American Helicopter Society 58th Annual Forum, Montreal, June
1113, 2002.

 Morillo, Jorge A. and Peters, David A., “Convergence of a Complete FiniteState Inflow Model of a Rotor Flow
Field,” 28th European Rotorcraft Forum, Bristol, England, September 1720, 2002.

 Bayly, Philip V., Mann, Brian P., Schmitz, Tony L., Peters, David A., Stepan, Gabor, and Insperjev, Tamas,
“Effects of Radial Immersion and cutting Direction on Chatter Instability in EndMilling,” Proceedings of
the ASME Manufacturing Engineering Division, IMECE, November 2002.

 Krothapalli, Krishnamohan, R., Prasad, J. V. R., and Peters, David A., “A Generalized Dynamic Wake Model with Wake Distortion Effects,” Proceedings of the 54th Annual National Forum of the American Helicopter Society, Washington, DC, May 2022, 1998, pp. 527536.

 Zhao, J., Prasad, J.V.R., and Peters, D.A., “Investigation of Wake Curvature Dynamics for Helicopter Maneuvering Flight Simulation,” Proceedings of the AHS International 59th Annual Forum, Phoenix, May 68, 2003, pp. 18871901.

 Peters, David A., “Review of Dynamic Wake Models for Application to Dynamics and Stability,” Proceedings of
the 4th Australian Pacific Vertiflite Conference on Helicopter Technology, Melbourne, July 2123, 2003.

 Yu, Ke and Peters, David A., “Use of Potential Flow StateSpace Inflow Modeling for Mass Source Rotors,” 29th
European Rotorcraft Forum, Friedrichshafen, Germany, September 1618, 2003, Paper No. 68.

 Makinen, Stephen M. and Peters, David A., “Comparison of Prandtl and Goldstein Optimum Propeller Solutions
with Dynamic Wake Models,” Tenth International Workshop on Aeroelasticity of Rotorcraft Systems,
Atlanta, November 35, 2003.

 Yu, Ke and Peters, David A., “Net Mass Flow Components in a ThreeDimensional, Unsteady Rotor Inflow
Model,” ASME International Mechanical Engineering Congress and Exhibition, Washington, D.C.,
November 17–21, 2003, ASME Paper IMECE2003 – 42459.

 Hsieh, MongChe Antonio, Peters, David A. and McDonnell, William R., “Stability and Response of a Forward
Mounted ServoTab Driven by a SubServoTab,” American Helicopter Society Fourth Decennial Specialist’
Conference on Aeromechanics, San Francisco, January 2123, 2004.

 Yu, Ke and Peters, David A., “ThreeDimensional StateSpace Modeling of Ground Effect in Dynamic Wake,”
60th Annual National Forum of the American Helicopter Society, Alexandria, VA, June 710, 2004, pp 100
121.

 Zhao, J., Prasad, J.V.R., and Peters, D.A., “Validation of a Rotor Dynamic Wake Distortion Model for Helicopter
Maneuvering Flight Simulation,” 60th Annual National Forum of the American Helicopter Society,
Alexandria, VA, June 710, 2004.

 Makinen, Stephen and Peters, David. “Comparison of Dynamic Wake Models with ClosedForm Optimum
Propeller Solutions,” Proceedings of the 30th European Rotorcraft Forum, Marseilles, France, September 14
16, 2004. Paper No. 9.

 Yu, Ke and Peters, David, “A ClosedForm Representation of ThreeDimensional StateSpace Influence
Coefficients,” Proceedings of the 61st Annual National Forum of the American Helicopter Society,
Grapevine, TX, June 13, 2005.

 Zhao, Jinggen, Prasad, J.V.R., and Peters, David A., “Effect of Rotor Wake Distortion on the Stability of Flapping
Dynamics,” Proceedings of the 61st Annual National Forum of the American Helicopter Society, Grapevine,
TX, June 13, 2005.

 Hsieh, Mongche Antonio and Peters, David A., “Convergence and Conditioning of Dynamic Wake Models for
Flight Dynamics,” Proceedings of the 31st European Rotorcraft Forum, Florence, Italy, September 1315,
2005.

 Peters, David A and Ormiston, R.A., “Calculation of Induced Power and Minimum Induced Power by the Peters
He Dynamic Wake Model,” Presented at the Eleventh International Workshop on Rotorcraft Dynamics and
Aeroelasticity, Boca Raton, Florida, October 1214, 2005.

 Prasad, J.V.R. and Peters, David A., “FiniteState Rotor Inflow Models for Maneuvering Flight,” Presented at the
Eleventh International Workshop on Rotorcraft Dynamics and Aeroelasticity, Boca Raton, Florida, October
1214, 2005.

 Peters, David A. and Hsieh, Mongche Antonio, “Improvements to Robustness of OffDisk FiniteState Wake
Models,” Presented at the Eleventh International Workshop on Rotorcraft Dynamics and Aeroelasticity,
Boca Raton, Florida, October 1214, 2005.

 Yu, Ke and Peters, David, “Application of StateSpace Wake Models to Full and Partial Ground Effect,” Second
International Basic Research Conference on Rotorcraft Technology, Nanjing, China, Nov. 79, 2005.

 Peters, David A., Hsieh, Mongche Antonio, and Torrero, Almudena, “A StateSpace Airloads Theory for
Flexible Airfoils,” Proceedings of the 62nd Annual National Forum of the American Helicopter Society,
Phoenix, May 911, 2006, pp. 18061823.

 Karunamoorthy, Swami, GarciaDuffy, Cristina, and Peters, David, “Study of Root Inflow for a Propeller Blade
of Infinite Length,” Proceedings of the HeliJapan Conference, Nagoya, Aichi, Japan, Nov. 1517, 2006,
paper No. 72222.

 Peters, David A. and GarciaDuffy, Cristina, “Optimum Rotor Performance in Axial Flow by FiniteState
Methods,” Proceedings of the 63rd AHS Forum, Virginia Beach, May 2007.

 Peters, David A., “TwoDimensional Incompressible Unsteady Airfoil Theory – an Overview,” Charles E.
Schmidt Distinguished Visiting Professor Lecture, Florida Atlantic University, November 14, 2007.

 Peters, David and Ahaus, Loren, “Correlation of Unsteady StateSpace Airloads Theory to Oscillating Airfoil
Wind Tunnel Data,” Proceedings of the Tenth Pan American Congress of Applied Mechanics, Cancun,
Mexico, January 711 2008.

 Wasileski, Bryan and Peters, David, “A StateSpace FreeVortex Hybrid Wake Model for Helicopter Rotors,”
AHS Specialists’ Conference on Aeromechanics, San Francisco, January 2325, 2008.

 GarciaDuffy, Cristina, and Peters, David A., “Theoretical Optimum Rotor Performance in Hover and Climb,”
AHS Specialists’ Conference on Aeromechanics, San Francisco, January 2325, 2008.

 Thepvongs, Smith, Cesnik, Carlos E.S., Palacios, Rafael, and Peters, David A., “FiniteState Aeroelastic
Modeling of Rotating Wings with Deformable Airfoils,” Proceedings of the 64th Annual National Forum of
the American Helicopter Society, Montreal, Canada, April 29 – May 1, 2008.

 Bain, Jeremy, Sankar, Lakshmi, Prasad, J.V.R., Peters, David, and He, Chengjian, “Computational Modeling of
Dynamically Deformable Leading Edge in High Speed Forward Flight,” Proceedings of the AIAA 4th Flow
Control Conference, Seattle, Washington, June 2326, 2008.

 Ahaus, Loren, and Peters, David, “Comparison of FiniteState Dynamic Stall Theory with Unsteady Data,”
Proceedings of the 34th European Rotorcraft Forum, Liverpool, England, September 1619, 2008.

 Peters, David A. and Lieb, Sydnie M., “Significance of Floquet Eigenvalues and Eigenvectors for the Dynamics
of TimeVarying Systems,” Proceedings of the AHS International 65th Annual National Forum &
Technology Display, Grapevine, Texas, May 2729, 2009, Vol. III, pp. 25292558.

 GarciaDuffy, Cristina, Peters, David A., and Ormiston, Robert A., “Optimum Rotor Performance in Skewed
Flow Based on ActuatorDisk Theory,” Proceedings of the 27th AIAA Applied Aerodynamics Conference,
San Antonio, Texas, June 2225, 2009, AIAA20093517.

 Peters, David A., Burkett, Andrew, and Lieb, Sydnie M., “Root Corrections for Dynamic Wake Models,”
Proceedings of the 35th European Rotorcraft Forum, Hamburg, Germany, September 2225, 2009.

 Peters, David A., Hsieh, Antonio, and GarciaDuffy, Cristina, “A Complete FiniteState Inflow Theory from the
Potential Flow Equations,” Keynote Lecture, 3rd International Basic Research Conference on Rotorcraft
Technology, Nanjing, China, Oct. 1416, 2009.

 GarciaDuffy, Cristina, Hsieh, Antonio, and Peters, David A., “A Complete Nonlinear Induced Flow Theory for
Iquaçu, Peraná, Brazil, January 48, 2010.

 Ahaus, Loren and Peters, David A., “Unified Airloads Model for Morphing Airfoils in Dynamic Stall,”
Proceedings of the AHS Specialist’s Conference on Aeromechanics, San Francisco, January 2022, 2010.

 Ahaus, Loren, Kahler, Alex J., and Peters, David A., “Simplified Analysis of Sectional Airloads on Morphing
Airfoils,” Proceedings of the AHS International 66th Annual Forum and Technology Display, Phoenix, AZ,
May 1113, 2010.

 Ahaus, Loren, Liggett, Nicholas, Peters, David A., and Smith, Marilyn J., “Unsteady Aerodynamics of Single and
MultiElement Airfoils,” 38th European Rotorcraft Forum, Paris, France, September 79, 2010.

 Ahaus, Loren A., Peters, David A., and Runge, Hans P., “Stall Alleviation Using MultiElement Airfoils,”
Proceedings of the AHS Specialist's Meeting, Technologies to Support the Next Generation of Vertical Lift
Aircraft and Beyond, Fort Worth, Texas, February 2325, 2011.

 File, Chad, Peters, David A., and Ormiston, Robert A., "Optimum Rotor Performance with Realistic Constraints
by FiniteState Induced Flow Methods," Proceedings of the 67th Annual National Forum of the American
Helicopter Society, Virginia Beach, Virginia, May 35, 2011.

 Peters, David, Loyet, Jessica, Chan, Wesley, and Ahaus, Loren, "Optimum Operational Parameters for Tethered,
Yawed Wind Turbines," proceedings of the 29th AIAA Applied Aerodynamics Conference, Honolulu,
Hawaii, June 2730, 2011.

 Rong, Xi, Peters, David A., and Fei, Zhongyang, "Optimum Pitch Settings and RPM for Tethered, Yawed Wind
Turbines," Proceedings of the 30th ASME Wind Energy Symposium and 50th AIAA Aerospace Sciences
Meeting, Nashville, Tennessee, January 912, 2012, AIAA Paper 20121071.

 Gaonkar, Gopal, "Reflections on Professor Kurt Hohenemser's Pioneering Contributions to Helicopter Theory and
Development," Proceedings of the AHS Annual National Forum, Ft. Worth, Texas, May 13, 2012.

 Ahaus, Loren, Roe, Robert, Peters, David A., and Rong, Xi, "Representation of Morphing Airfoil Thickness in
Dynamic Stall Simulations," Proceedings of the AIAA 30th Applied Aerodynamics Conference, New
Orleans, LA, June 2528, 2012.

 Fei, Zhongyang and Peters, David A. "A Rigorous Solution for FiniteState Inflow throughout the Flowfield––
Including within the Wake," Proceedings of the AIAA 30th Applied Aerodynamics Conference, New
Orleans, LA, June 2528, 2012.

 Fei, Zhongyang and Peters, David A., "Eigenvalues and Mode Shapes for the Complete Rotor Dynamic Wake
Model," Proceedings of the AIAA 30th Applied Aerodynamics Conference, New Orleans, LA, June 2528,
2012.

 File, Chad and Peters, David A., and Modarres, Ramin, "Blade Number Effect on Optimum Rotor Performance in
Axial Flow by Dynamic Wake Theory with Improved Swirl Correction," Proceedings of the 38th European
Rotorcraft Forum, Amsterdam, Sept. 47, 2012.

 Modarres, Ramin and Peters, David A., "Efficient Solution of Goldstein’s Equations for Propellers With
Application to Rotor Induced Power Efficiency,” Proceedings of the 38th European Rotorcraft Forum,
Amsterdam, Sept. 47, 2012.

 Fei, Zhongyang, and Peters, David A., “Inflow Below the Rotor Disk for Skewed Flow by the FiniteState,
Adjoint Method,” Proceedings of the 38th European Rotorcraft Forum, Amsterdam, Sept. 47, 2012.

 Wasikowski, Mark, Ahaus, Loren, and Peters, David. A., "A Fundamental Investigation of Stall Flutter,"
Proceedings of the 69th Annual Forum of the American Helicopter Society, Phoenix, AZ, May 2123, 2013.

 Liebschutz, Rob and Peters, David A., “Optimization of the Wind Turbine Power Coefficient Using Collective
and Cyclic Pitch inYawed Flow,” Proceedings of the 69th Annual Forum of the American Helicopter
Society, Phoenix, AZ, May 2123, 2013.

 Fei, Zhongyang and Peters, David. A., "Applications of Generalized Dynamic Wake Theory to the Flow in a
Rotor Wake," Proceedings of the 69th Annual Forum of the American Helicopter Society, Phoenix, AZ, May
2123, 2013.

 Nowak, Morgan, Prasad, J.V.R., Xin, Hong, and Peters, David, “A Finite State Inflow Model for a MultiRotor
System in Forward Flight,” Proceedings of the 69th Annual Forum of the American Helicopter Society,
Phoenix, AZ, May 2123, 2013.

 Modarres, Ramin and Peters, David. A., "Theoretical Optimal Efficiencies of Rotors in Hover including Wake
Swirl and Wake Contraction," Proceedings of the 69th Annual Forum of the American Helicopter Society,
Phoenix, AZ, May 2123, 2013.

 Peters, David. A. and Chugani, Jesse, "Dynamic Wake Solutions for Rotors Transitioning between Powered and
Windmill Braking Modes," Proceedings of the 69th Annual Forum of the American Helicopter Society,
Phoenix, AZ, May 2123, 2013.

 Hong, JunSoon (Sean) and Peters, David A., "A Completely Nonlinear Form of the PittPeters Dynamic Wake
Model," submitted to the 2013 Robert Lichten Award competition.

 Fei, Zhongyang and Peters, David A., "Accurate Computation of Flow Below the Rotor Disk by a FiniteState
Method," submitted to the AIAA 31st Applied Aerodynamics Conference, San Diego, CA, June 2427, 2013.

Technical Comments

 Hodges, Dewey H., Peters, David A., Pierce, G. Alvin, and Jonnalagadda, V. R. P., “Comment on ‘Nonlinear
Deformation of Rotating Beams – An Alternate Approach’,” Journal of the American Helicopter Society,
Vol. 25, No. 3, July 1980, pp. 7071.

 Peters, David A., “Comment on ‘Calculation of Rotor Impedance for Articulated Rotor Helicopters in Forward
Flight’,” Journal of Aircraft, Vol. 17, No. 8, August 1980, p. 607.

 Peters, David A. and Hodges, Dewey H., “Discussion of ‘On the Dynamic Response of a SingleDegreeof
Freedom Structure Attached to the Interior of a Rotating Rigid Ring’,” Journal of Applied Mechanics, Vol.
55, No. 3, 1988, pp. 747748.

Other Publications

 Peters, David A., "Application of the Floquet Transition Matrix to Problems of Lifting Rotor Stability", Master of
Science Thesis, Washington University, June 1970, advisor Kurt Hohenemser.

 Peters, David A., “An Approximate Solution for the Free Vibrations of Rotating Uniform Cantilever Beams,”
NASA TM X62,299, September 1973, (Revised 82878).

 Peters, David A., “Deformed Blade Coordinate System Transformation,” Appendix to NASA TN D7818,
December 1974.

 Peters, David A., Flapping Response Characteristics of Hingeless Rotor Blades by a Generalized Harmonic
Balance Method, Ph.D. Thesis, Stanford University, June 1974, advisor Art Bryson.

 Peters, David A. and Ormiston, R. A., “Flapping Response Characteristics of Hingeless Rotor Blades by a
Generalized Harmonic Balance Method,” NASA TN D7856, February 1975.

 Peters, David A., “An Approximate ClosedForm Solution for LeadLag Damping of Rotor Blades in Hover,”
NASA TM X62,425, April 1975.

 Diboll, W. B. and Peters, David A., “A Simulation Study of Switching Operations Preceding the Wenatchee
Incident,” Technical Report prepared for E. E. Du Pont de Nemours and Company, June 1975.

 Diboll, W. B. and Peters, David A., “The Wenatchee Incident: Estimated Velocity on the Impacting Consist,”
Technical Report prepared for E. I. Du Pont de Nemours and Company, September 1975.

 Peters, David A. and Yin, S. K. “NonDestructive Impact Between Railroad Cars: Experimental and Analytical
Study,” Technical Report No. FRAORD76/247, March 1976.

 Peters, David A., Szabo, B. A. and Diboll, W. B., “Tank Car Head Puncture Mechanisms,” Technical Report No.
FRAORD76/269, June 1976.

 Peters, David A., “Dynamic Analysis of the ACF Fabricated Truck,'' Technical Report prepared for AMCAR
Division ACF Industries, April 1977.

 Peters, David A., “Effect of Lading Mobility on RockandRoll Dynamics,” Technical Report prepared for
AMCAR Division, ACF Industries, November 1977.

 Hohenemser, K. H., Swift, Andrew H. P. and Peters, David A., “A Definitive Generic Study for Sailwing Wind
Energy Systems,” Final Technical Report prepared for Midwest Research Institute, May 1979.

 Hodges, Dewey H., Ormiston, Robert A., and Peters, David A., “On the NonLinear Deformation Geometry of
EulerBernoulli Beams,” NASA TP1566, April 1980.

 Peters, David A., “Analysis of the Assumptions and Derivations of the Root Perturbation Method,” prepared for
Paragon Pacific, Inc., El Segundo, California, November 1980.

 Hohenemser, K. H., Swift, Andrew H. P., and Peters, David A., “The Yawing of Wind Turbines with Blade
Cyclic Pitch Variation,” SERI/TR808515, December 1980.

 Peters, David A., “Analysis and Design of Ceiling Fans,” prepared for Emerson Electric, Environmental Products
Division, St. Louis, Missouri, March 1981.

 Peters, David A., “Modification of the RPM Code to Give Correct Eigenvalues and Periodic Eigenvectors,”
prepared for Paragon Pacific, May 1981.

 Chen, Han Sheng and Peters, David A., “Optimization of AutoPilot Equations for Rapid Estimation of Helicopter
Control Settings,” Interim Technical Report No. 1, ARO Grant DAAG2980C0092, November 1981.

 Ormiston, R. A., Warmbrodt, W., Hodges, D. H., and Peters, D. A., “Survey of Army/NASA Rotorcraft
Aeroelastic Research,” NASA TM 101026, October 1988.

 Curtiss, Howard C. Jr., and Peters, David A., “Aeroelastic Response of Rotorcraft,” Book Chapter, A Modern
Course in Aeroelasticity, Earl H. Dowell (Editor), Third Edition, Kluwar Academic Publishers, Boston,
1995, pp. 370437; Fourth Edition, 2004, pp. 377452.

 Peters, David A., “Low Speed RearEnd Impacts: an Overview,” The Consultants Perspective, Sugar
Publications, FORCON International, Brandon, Florida, Spring 1997.

 Peters, David A., “Analysis of Amusement Park Rides,” The Consultants Perspective, Sugar Publications,
FORCON International, Brandon, FL, Fall 1999.

Paper Awards

 Hou, LinJun, “Development of Displacement hpVersion SpaceTime Finite Elements with Triangular
Elements,” 33rd AIAA SDM conference, Dallas Texas, April 1315, 1992, winner of Jefferson Goblet
Student Paper Award.

 Peters, David A., Morillo, Jorge A., and Nelson, Adria M., “New Developments in Dynamic Wake Modeling
for Dynamics Applications,” Proceedings of the 57th Annual Forum of the American Helicopter Society,
Washington, D.C., May 911, 2001, winner of Best Paper in Flight Simulation Sessions.

 Zhao, J., Prasad, J.V.R., and Peters, D.A., “Investigation of Wake Curvature Dynamics for Helicopter Maneuvering Flight Simulation,” Proceedings of the AHS International 59th Annual Forum, Phoenix, May 68, 2003, pp. 18871901.

 Peters, David A., Hsieh, Mongche Antonio, and Torrero, Almudena, “A StateSpace Airloads Theory for
Flexible Airfoils,” Proceedings of the 62nd Annual National Forum of the American Helicopter Society,
Phoenix, May 911, 2006, pp. 18061823, winner of Best Paper in Aerodynamics Sessions.

