An Adaptive Feed-Forward Controller for Active Wing Bending Vibration Alleviation on Large Transport Aircraft

Particularly on large transport aircraft the first wing bending mode is significantly excited by atmospheric turbulence. Based on flight test data, it is shown that the related modal accelerations can be compensated very efficiently by feed-forward control. In order to increase the robustness of the control performance against plant uncertainties, an adaptive algorithm is designed for said feed-forward control. Moreover, the stability of the adaptation is analysed. Finally, the implementation of the proposed adaptive feed-forward controller is demonstrated in a wind tunnel experiment.

[1]  Dennis S. Bernstein,et al.  Hybrid control: Separation in design , 1998 .

[2]  Matthieu Jeanneau,et al.  AWIATOR's Study of a Wing Load Control: Design and Flight-Test Results , 2004 .

[3]  P. Teufel.  Böenmodellierung und Lastabminderung für ein flexibles Flugzeug , 2003 .

[4]  Robert L. Clark,et al.  Feedforward control using the higher‐harmonic, time‐averaged gradient descent algorithm , 1995 .

[5]  Rolf Isermann,et al.  Parameter-adaptive control with configuration aids and supervision functions , 1985, Autom..

[6]  S. Elliott,et al.  In-flight experiments on the active control of propeller-induced cabin noise , 1989 .

[7]  J. F. Johnston,et al.  Accelerated development and flight evaluation of active controls concepts for subsonic transport aircraft. Volume 1: Load alleviation/extended span development and flight tests , 1979 .

[8]  Robert W. Moses,et al.  An Active Smart Material Control System for F/A-18 Buffet Alleviation , 2003 .

[9]  Fuyun Ling,et al.  The LMS algorithm with delayed coefficient adaptation , 1989, IEEE Trans. Acoust. Speech Signal Process..

[10]  G. Montseny,et al.  State representation and simulation of 2D turbulent wind , 2000 .

[11]  C. Hansen.  Current research in active control of noise , 1994 .

[12]  J. Ackermann,et al.  Robuste Regelung : Analyse und Entwurf von linearen Regelungssystemen mit unsicheren physikalischen Parametern , 1993 .

[13]  Michel Verhaegen,et al.  Increasing the robustness of a preconditioned filtered-X LMS algorithm , 2004, IEEE Signal Processing Letters.

[14]  C. Chiappa,et al.  A multiobjective method for flight control law design , 2004 .

[15]  K.-U. Hahn,et al.  Advanced Gust Management Systems. - Lessons Learned and Perspectives - , 1994 .

[16]  Klaus-Uwe Hahn,et al.  Advanced gust load alleviation system for large flexible aircraft , 2007 .

[17]  Uwe Krogmann.  Beitrag zur Anwendung neuronaler Netze in der Flugregelung , 1995 .

[18]  Guilhem Puyou,et al.  Flight Control Law Design for a Flexible Aircraft: Limits of Performance , 2006 .

[19]  K.-U. Hahn,et al.  ATTAS Flight Test and Simulation Results of the Advanced Gust Management System LARS. , 1992 .

[20]  C. Fuller,et al.  Causality analysis of feedforward‐controlled systems with broadband inputs , 1993 .

[21]  D. M. Urie.  Accelerated development and flight evaluation of active controls concepts for subsonic transport aircraft. Volume 2: AFT C.G. simulation and analysis , 1979 .

[22]  A. Zinober,et al.  Adaptive Control: the Model Reference Approach , 1980 .

[23]  Carey S. Buttrill,et al.  AIAA 2001-4006 The Impact of Structural Vibration on Flying Qualities of a Supersonic Transport , 2001 .

[24]  Vivek Mukhopadhyay,et al.  Transonic Flutter Suppression Control Law Design, Analysis and Wind-Tunnel Results , 1999 .

[25]  Harold R. Bagley,et al.  Coherent lidar turbulence measurement for gust load alleviation , 1996, Optics & Photonics.

[26]  W. Gardner.  Learning characteristics of stochastic-gradient-descent algorithms: A general study, analysis, and critique , 1984 .

[27]  Christian Breitsamter,et al.  Wild tunnel testing of an adaptive control system for vibration suppression on aircraft , 2007 .

[28]  John W. Edwards,et al.  Flight test results of an active flutter suppression system , 1983 .

[29]  T. Kármán,et al.  On the Statistical Theory of Isotropic Turbulence , 1938 .

[30]  Bernard Widrow.  Adaptive inverse control , 1990, Defense, Security, and Sensing.

[31]  Ulf Schwane.  Datenbasierte Generierung von Adaptionsregeln und Anwendung zur Erhöhung der Bahngenauigkeit eines Industrieroboter , 1999 .

[32]  Wei Ren,et al.  Convergence analysis of the multi-variable filtered-X LMS algorithm with application to active noise control , 1999, IEEE Trans. Signal Process..

[33]  Jeffrey Monaco,et al.  Flight Testing of a Retrofit Reconfigurable Control Law Architecture Using an F/A-18C , 2006 .

[34]  Ulf Tapken,et al.  ACTIVE CONTROL OF FAN TONE NOISE FROM AIRCRAFT ENGINES , 2001 .

[35]  Rolf Isermann,et al.  Identifikation dynamischer Systeme , 1988 .

[36]  Colin H. Hansen,et al.  Active control of vibration , 1996 .

[37]  C. Fuller,et al.  Active control of automobile cabin noise with advanced speakers , 1998 .

[38]  Wei Ren,et al.  Convergence analysis of the filtered-U algorithm for active noise control , 1999, Signal Process..

[39]  Palumbo Dan,et al.  Active Structural Acoustic Control of Interior Noise on a Raytheon 1900D , 2000 .

[40]  J. Gibson,et al.  Analytical design of linear feedback controls , 1958 .

[41]  J. Glover.  Adaptive noise canceling applied to sinusoidal interferences , 1977 .

[42]  H. Hönlinger,et al.  Structural Aspects of Active Control Technology. , 1994 .

[43]  Stephan Tewes.  Active Trim Panel Attachments for Control of Sound Transmission through Aircraft Structures , 2006 .

[44]  Anthony J. Calise,et al.  Adaptive nonlinear controller synthesis and flight test evaluation on an unmanned helicopter , 1999, Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No.99CH36328).

[45]  Philip A. Nelson,et al.  Effect of errors in the plant model on the performance of algorithms for adaptive feedforward control , 1991 .

[46]  K. Rew,et al.  Multi-Modal Vibration Control Using Adaptive Positive Position Feedback , 2002 .

[47]  Robert K. Sleeper.  Spanwise measurements of vertical components of atmospheric turbulence , 1990 .

[48]  Fethi Abdelmoula,et al.  Design of an Open-Loop gust alleviation control system for airborne gravimetry , 1999 .

[49]  I. Abel,et al.  Status of two studies on active control of aeroelastic response at NASA Langley Research Center , 1973 .

[50]  Robert B. Harris,et al.  Active control transport design criteria , 1979 .

[51]  Robert H. Scanlan,et al.  Introduction to the study of aircraft vibration and flutter , 1952, The Journal of the Royal Aeronautical Society.

[52]  Stefan Bieniawski,et al.  Flutter Suppression for High Aspect Ratio Flexible Wings Using Microflaps , 2002 .

[53]  Lennart Ljung,et al.  System Identification: Theory for the User , 1987 .

[54]  Bernard Widrow,et al.  Adaptive Signal Processing , 1985 .

[55]  Stephen J. Elliott,et al.  Signal Processing for Active Control , 2000 .

[56]  前田 裕,et al.  An Active Noise Control without Estimation of Secondary-Path--ANC Using Simultaneous Perturbation (高度防災情報通信システムの構築プロジェクト) , 1999 .

[57]  Paul A. Robinson.  Use of predictive lidar measurements in alleviating turbulence-induced disturbances of aircraft in flight , 1996, Defense, Security, and Sensing.

[58]  Matthieu Jeanneau,et al.  AWIATOR'S DESIGN OF MULTI-OBJECTIVES CONTROL LAWS , 2005 .

[59]  Ali Mili,et al.  Certifying Adaptive Flight Control Software , 2000 .

[60]  Mark W. Davis,et al.  Flight Test of Active Gear-Mesh Noise Control on the S-76 Aircraft , 1998 .

[61]  Eric N. Johnson,et al.  PSEUDO-CONTROL HEDGING : A NEW METHOD FOR ADAPTIVE CONTROL , 2000 .

[62]  Palumbo Dan,et al.  Flight Test of ASAC Aircraft Interior Noise Control System , 1999 .

[63]  Karl Johan Åström,et al.  Adaptive feedback control , 1987, Proc. IEEE.

[64]  C. Hansen.  Overview of active noise control systems , 1995 .

[65]  William P. Rodden,et al.  Response of B-2 aircraft to nonuniform spanwise turbulence , 1993 .

[66]  Rudolf Maier,et al.  Helicopter Interior Noise Reduction by Using Active Gearbox Struts , 2006 .

[67]  Christian Breitsamter,et al.  Aerodynamic Active Control for Fin Buffet Load Alleviation , 2005 .

[68]  Anthony J. Calise,et al.  A Comparison Study of Classical and Neural Network Based Adaptive Control of Wing Rock , 2004 .

[69]  G. Ferreres,et al.  Feasibility of H/sub /spl infin// design specifications: an interpolation method , 2005, Proceedings of the 2005, American Control Conference, 2005..

[70]  T. von Karman,et al.  On the Statistical Theory of Turbulence. , 1937, Proceedings of the National Academy of Sciences of the United States of America.

[71]  Anuradha M. Annaswamy,et al.  Stable Adaptive Systems , 1989 .

[72]  Yoshikazu Miyazawa.  FLIGHT CONTROL LAW AND STRUCTURAL FILTER DESIGN FOR A FLEXIBLE AEROSPACE VEHICLE , 2000 .

[73]  D. Andrisani,et al.  Gust alleviation using direct turbulence measurements , 1979 .

[74]  T. Kármán.  Progress in the Statistical Theory of Turbulence , 1948 .

[75]  V. Mukhopadhyay,et al.  A direct method for synthesizing low-order optimal feedback control laws with application to flutter suppression , 1980 .

[76]  Christian Breitsamter.  Aerodynamic Active Vibration Alleviation for Buffet Excited Vertical Tails , 2001 .

[77]  Hugh L. Dryden,et al.  A review of the statistical theory of turbulence. , 1943 .

[78]  Dennis R. Morgan,et al.  An analysis of multiple correlation cancellation loops with a filter in the auxiliary path , 1980, ICASSP.

[79]  H. S. Ribner,et al.  Spectral Theory of Buffeting and Gust Response: Unification and Extension , 1956 .

[80]  Matthieu Jeanneau,et al.  Active wing load alleviation with an adaptive feed-forward control algorithm , 2006 .

[81]  Frederic M. Hoblit,et al.  Gust Loads on Aircraft: Concepts and Applications , 1988 .

[82]  Anthony J. Calise,et al.  Adaptive Compensation for Flexible Dynamics , 2002 .

[83]  Robert T. Britt,et al.  Aeroservoelastic Analysis of the B-2 Bomber , 2000 .

[84]  C. Chiappa,et al.  GAIN SCHEDULING USING MULTIMODEL EIGENSTRUCTURE ASSIGNMENT: A NEW APPLICATION , 2006 .

[85]  Howard Kaufman,et al.  Direct adaptive control algorithms: theory and applications , 1993, Choice Reviews Online.

[86]  Boyd Perry,et al.  Comparison of analytical and wind-tunnel results for flutter and gust response of a transport wing with active controls , 1982 .

[87]  Roger M Goodall,et al.  Kalman Filtering for Structural Coupling , .