Current Status and Future Trends

[1]  David A. Peters,et al.  Finite-State Induced-Flow Model for Rotors in Hover and Forward Flight , 1989 .

[2]  Olivier A. Bauchau,et al.  Dynamic Analysis of Rotor Flexbeams Based on Nonlinear Anisotropic Shell Models , 1993 .

[3]  Edward C. Smith,et al.  Aeroelastic Response & Stability of Helicopters with Elastomeric Lag Dampers , 1996 .

[4]  Edward C. Smith,et al.  Characterization and Modeling of the Low Strain Amplitude and Frequency Dependent Behavior of Elastomeric Damper Materials , 1998 .

[5]  P. Friedmann,et al.  Aeroelasticity and structural optimization of composite helicopter rotor blades with swept tips , 1995 .

[6]  P. P. Friedmann,et al.  Vibration reduction in helicopter rotors using an active control surface located on the blade , 1992 .

[7]  Wilkie W. Keats,et al.  Aeroelastic Analysis of the NASA/ARMY/MIT Active Twist Rotor , 1999 .

[8]  Peretz P. Friedmann,et al.  Aeroelastic Response Of Swept Tip Rotors Including The Effects Of BVI , 1998 .

[9]  Inderjit Chopra,et al.  Status of Application of Smart Structures Technology to Rotorcraft Systems , 2000 .

[10]  Mark V. Fulton,et al.  Free-Vibration Analysis of Composite Beams , 1991 .

[11]  Omri Rand,et al.  Periodic Response of Thin-Walled Composite Helicopter Rotor Blades , 1991 .

[12]  Peretz P. Friedmann,et al.  Vibration reduction in rotorcraft using an enhanced ACSR* model , 2000 .

[13]  Peretz P. Friedmann,et al.  Application of a New Compressible Time Domain Aerodynamic Model to Vibration Reduction in Helicopters Using an Actively Controlled Flap , 2001 .

[14]  O. Bauchau,et al.  A Multibody Formulation for Helicopter Structural Dynamic Analysis , 1993 .

[15]  Inderjit Chopra,et al.  Air Resonance of Hingeless Rotor Helicopters in Trimmed Forward Flight , 1994 .

[16]  Peretz P. Friedmann,et al.  Formulation and solution of rotary-wing aeroelastic stability and response problems , 1983 .

[17]  D. Kunz.  Influence of elastomeric lag damper modeling on the predicted dynamic response of helicopter rotor systems , 1996 .

[18]  Bernhard Enenkl,et al.  Aeromechanic Aspects in the Design of the EC135 , 1999 .

[19]  Joon W. Lim,et al.  Correlation of 2GCHAS Analysis with Experimental Data , 1995 .

[20]  David A. Peters,et al.  Theoretical prediction of dynamic inflow derivatives , 1980 .

[21]  Inderjit Chopra,et al.  Hingeless Rotor Aeroelastic Stability Analysis with Refined Aerodynamic Modeling , 1991 .

[22]  Richard L. Bielawa,et al.  Rotary wing structural dynamics and aeroelasticity , 1992 .

[23]  Friedrich K. Straub,et al.  Comprehensive Modeling of Rotors with Trailing Edge Flaps , 1999 .

[24]  Inderjit Chopra,et al.  Validation of a Comprehensive Aeroelastic Analysis for Tiltrotor Aircraft , 1998 .

[25]  Yoon C. Jung,et al.  Comprehensive Aeromechanics Analysis of Complex Rotorcraft Using 2GCHAS , 1995 .

[26]  Peretz P. Friedmann,et al.  Vibration reduction in rotorcraft using active control - A comparison of various approaches , 1995 .

[27]  Earl H. Dowell,et al.  Reduced Order Aerodynamic Models Based Upon Inflow Eigenmodes , 1998 .

[28]  J. Gordon Leishman,et al.  Principles of Helicopter Aerodynamics , 2000 .

[29]  A. Atilgan,et al.  Unified nonlinear analysis for nonhomogeneous anisotropic beams with closed cross sections , 1991 .

[30]  W. Weller,et al.  Relative Aeromechanical Stability Characteristics for Hingeless and Bearingless Rotors , 1990 .

[31]  P. P. Friedmann,et al.  Active control of vibrations due to BVI and experimental correlation , 1999 .

[32]  Omri Rand,et al.  The Influence of Composite Induced Couplings on Tiltrotor Whirl Flutter Stability , 1998 .

[33]  Friedrich K. Straub,et al.  Active Flap Control for Vibration Reduction and Performance Improvement , 1995 .

[34]  Inderjit Chopra,et al.  An Analytical Model for a Nonlinear Elastomeric Lag Damper and Its Effect on Aeromechanical Stability in Hover , 1994 .

[35]  O. Dieterich,et al.  Stall Effects and Blade Torsion - An Evaluation of Predictive Tools , 1999 .

[36]  Dewey H. Hodges,et al.  A review of composite rotor blade modeling , 1988 .

[37]  Peretz P. Friedmann,et al.  UNSTEADY COMPRESSIBLE AERODYNAMICS OF A FLAPPED AIRFOIL WITH APPLICATION TO HELICOPTER VIBRATION REDUCTION , 1997 .

[38]  Peretz P. Friedmann,et al.  Renaissance of Aeroelasticity and Its Future , 1999 .

[39]  Peretz P. Friedmann,et al.  Vibration reduction in helicopter rotors using an actively controlled partial span trailing edge flap located on the blade , 1994 .

[40]  D. Peters,et al.  Finite state induced flow models. I - Two-dimensional thin airfoil , 1995 .

[41]  Peretz P. Friedmann,et al.  Recent developments in rotary-wing aeroelasticity , 1977 .

[42]  David A. Peters,et al.  Aeroelastic Stability of Composite Hingeless Rotors in Hover with Finite-State Unsteady Aerodynamics , 1999 .

[43]  E. Smith,et al.  Air and ground resonance of helicopters with elastically tailored composite rotor blades , 1993 .

[44]  F. K. Straub,et al.  Advance finite element modeling of rotor blade aeroelasticity , 1994 .

[45]  David A. Peters,et al.  Finite state induced flow models. II - Three-dimensional rotor disk , 1995 .

[46]  E. Smith,et al.  Formulation and evaluation of an analytical model for composite box-beams , 1991 .

[47]  Peretz P. Friedmann,et al.  Rotor blade aeroelasticity in forward flight with an implicit aerodynamic formulation , 1988 .

[48]  Michael S. Torok,et al.  Aerodynamic and Wake Methodology Evaluation Using Model UH-60A Experimental Data , 1994 .

[49]  Carlos E. S. Cesnik,et al.  A refined composite beam theory based on the variational-asymptotical method , 1993 .

[50]  Dewey H. Hodges,et al.  Aeroelastic stability of composite hingeless rotor blades in hover-Part II: Results , 1993 .

[51]  G. Reichert,et al.  Helicopter vibration control: a survey , 1980 .

[52]  Peretz P. Friedmann,et al.  A new aeroelastic model for composite rotor blades with straight and swept tips , 1992 .

[53]  Carlos E. S. Cesnik,et al.  VABS: A New Concept for Composite Rotor Blade Cross-Sectional Modeling , 1995 .

[54]  T. F. Myrtle,et al.  Development of an improved aeroelastic model for the investigation of vibration reduction in helicopter rotors using trailing edge flaps , 1998 .

[55]  J. C. Tyler,et al.  Analysis of Pitch and Plunge Effects on Unsteady Airfoil Behavior , 1992 .

[56]  Peretz P. Friedmann,et al.  Technical Note: Correlation Studies for Hingeless Rotors in Forward Flight Using 2GCHAS , 1998 .

[57]  Robert A. Ormiston,et al.  Investigation of Dynamic Stall Effects on Isolated Rotor Flap-Lag Stability with Experimental Correlation , 1991 .

[58]  William H. Weller.  Variation in Hover Aeromechanical Stability Trends with Bearingless Main Rotor Design , 1994 .

[59]  Brahmananda Panda,et al.  Aeroelastic Stability Wind Tunnel Testing with Analytical Correlation of the Comanche Bearingless Main Rotor , 1997 .

[60]  Peretz P. Friedmann,et al.  Vibration reduction in rotorcraft using the actively controlled trailing edge flap and issues related to practical implementation , 1998 .

[61]  Peretz P. Friedmann,et al.  Vibration analysis of composite turbopropellers using a nonlinear beam-type finite-element approach , 1989 .

[62]  Carlos E. S. Cesnik,et al.  Finite element solution of nonlinear intrinsic equations for curved composite beams , 1995 .

[63]  J. Gordon Leishman,et al.  Rotor Free-Wake Modeling Using a Pseudo-Implicit Technique — Including Comparisons with Experimental Data , 1995 .

[64]  Hossein Saberi,et al.  Application of 2GCHAS to the Investigation of Aeromechanical Stability of Hingeless and Bearingless Rotor Helicopters , 1995 .

[65]  G. H. Gaonkar,et al.  Dynamic Stall and Wake Effects on Trim and Stability of Hingeless Rotors with Experimental Correlation , 1997 .

[66]  Peretz Friedman,et al.  Aeroelastic stability, response and loads of swept tip composite rotor blades in forward flight , 1994 .

[67]  Inderjit Chopra,et al.  Assessment of Composite Rotor Blade Modeling Techniques , 1999 .

[68]  P. Friedmann,et al.  Aeroelastic behavior of composite rotor blades with swept tips , 1992 .

[69]  Robert A. Ormiston,et al.  Rotor‐Fuselage Dynamics of Helicopter Air and Ground Resonance , 1991 .

[70]  W. Johnson,et al.  CAMRAD - A COMPREHENSIVE ANALYTICAL MODEL OF ROTORCRAFT AERODYNAMICS AND DYNAMICS , 1994 .

[71]  Inderjit Chopra,et al.  Analysis of Bearingless Main Rotor Aeroelasticity Using an Improved Time Domain Nonlinear Elastomeric Damper Model , 1996 .

[72]  Inderjit Chopra,et al.  An Aeroelastic Analysis Methodology for Bearingless Main Rotor Helicopters , 1998 .

[73]  Robert G. Loewy,et al.  Helicopter Vibrations: A Technological Perspective , 1984 .

[74]  E. Smith,et al.  Formulation : Validation, and Application of a Finite Element Model for Elastomeric Lag Dampers , 1996 .

[75]  William H. Weller,et al.  Fuselage State Feedback for Aeromechanical Stability Augmentation of a Bearingless Main Rotor , 1996 .

[76]  Inderjit Chopra,et al.  A Parametric Design Study for Actively Controlled Trailing Edge Flaps , 1998 .

[77]  L. Librescu,et al.  Structural Modeling and Free Vibration Analysis of Rotating Composite Thin-Walled Beams , 1997 .

[78]  Inderjit Chopra,et al.  Aeroelastic Analysis of Advanced Geometry Tiltrotor Aircraft , 1995 .

[79]  W Nixon Mark,et al.  Aeroelastic Response and Stability of Tiltrotors with Elastically-Coupled Composite Rotor Blades , 1993 .

[80]  Robert G. Loewy,et al.  Review of rotary-wing V/STOL dynamic and aeroelastic problems , 1969 .

[81]  Peretz P. Friedmann,et al.  The Practical Implementation of an Actively Controlled Flap to Reduce Vibrations in Helicopter Rotors , 1993 .

[82]  Peretz P. Friedmann,et al.  Helicopter rotor dynamics and aeroelasticity - Some key ideas and insights , 1990 .

[83]  Robert A. Ormiston,et al.  An Electromagnetic Actuator For Individual Blade Control , 2000 .

[84]  Peretz P. Friedmann,et al.  Active Control Of BVI Induced Vibrations Using A Refined Aerodynamic Model And Experimental Correlation , 1999 .

[85]  Inderjit Chopra,et al.  Aeroelastic Analysis of Swept, Anhedral, and Tapered Tip Rotor Blades , 1992 .

[86]  Inderjit Chopra,et al.  Aeroelastic Analysis of a Composite Bearingless Rotor in Forward Flight Using an Improved Warping Model , 1995 .

[87]  Joon W. Lim,et al.  Current Status of U.S. Army Comprehensive Helicopter Analysis System , 2000 .

[88]  G. H. Gaonkar,et al.  Hingeless-Rotor Aeromechanical Stability in Axial and Forward Flight With Wake Dynamics , 1999 .

[89]  Peretz P. Friedmann,et al.  Helicopter air resonance modeling and suppression using active control , 1991 .