Adaptive Mode Suppression Scheme for an Aeroelastic Airbreathing Hypersonic Cruise Vehicle

This paper presents an adaptive mode suppression scheme that is simulated on a longitudinal model of a generic airbreathing hypersonic flight vehicle. An aerodynamically optimized vehicle model is used which has a long slender configuration and flexible modes that are slow enough to get excited during normal operation and therefore pose a control issue. These elastic modes maybe cause adverse aeroservoelastic effects which can degrade the performance or even cause instabilities. The frequency and damping ratio of the flexible modes can be uncertain and also vary during flight due to atmospheric heating. A control scheme is presented which incorporates an adaptive notch filter which can accurately track and suppress an unknown or changing flexible mode online. The adaptive scheme is then compared to a non-adaptive scheme in simulations using an aeroelastic airbreathing hypersonic cruise vehicle model that has been previously developed.

[1]  Rick Lind,et al.  Linear Parameter-Varying Modeling and Control of Structural Dynamics with Aerothermoelastic Effects , 1999 .

[2]  Peretz P. Friedmann,et al.  Three-Dimensional Aeroelastic and Aerothermoelastic Behavior in Hypersonic Flow , 2005 .

[3]  Andrew G. Sparks,et al.  Multi-loop aeroservoelastic control of a hypersonic vehicle , 1999 .

[4]  Petros A. Ioannou,et al.  Adaptive Control of an Aeroelastic Airbreathing Hypersonic Cruise Vehicle , 2007 .

[5]  Phillip A. Regalia,et al.  An improved lattice-based adaptive IIR notch filter , 1991, IEEE Trans. Signal Process..

[6]  David K. Schmidt.  Dynamics and control of hypersonic aeropropulsive/aeroelastic vehicles , 1992 .

[7]  P. Ioannou,et al.  Multirate adaptive notch filter with an adaptive bandwidth controller for disk drives , 2008, 2008 American Control Conference.

[8]  Jack J. McNamara,et al.  Aeroelastic and Aerothermoelastic Analysis of Hypersonic Vehicles: Current Status and Future Trends , 2007 .

[9]  Petros A. Ioannou,et al.  Altitude and Velocity Tracking Control for An Airbreathing Hypersonic Cruise Vehicle , 2006 .

[10]  Michael G. Gilbert,et al.  Active Control of Aerothermoelastic Effects for a Conceptual Hypersonic Aircraft , 1990 .

[11]  Srdjan S. Stankovic,et al.  An adaptive notch filter with improved tracking properties , 1995, IEEE Trans. Signal Process..

[12]  David B. Doman,et al.  Nonlinear Longitudinal Dynamical Model of an Air-Breathing Hypersonic Vehicle , 2007 .

[13]  Timothy Hirner,et al.  Automated procedures for aircraft aeroservoelastic compensation , 1992 .

[14]  Walter C. Engelund,et al.  Aerothermoelastic analysis of a NASP demonstrator model , 1993 .

[15]  Moshe Idan,et al.  Robust Aeroservoelastic Design with Structural Variations and Modeling Uncertainties , 2003 .

[16]  David H. Klyde,et al.  Aeroservoelastic stabilization techniques for hypersonic flight vehicles , 1991 .

[17]  Maj Mirmirani,et al.  An Aero-Propulsion Integrated Elastic Model of a Generic Airbreathing Hypersonic Vehicle , 2006 .

[18]  Charles Goodman,et al.  F/A-18E/F Aeroservoelastic Design, Analysis, and Test , 2003 .

[19]  Daowei Wu,et al.  Analysis and comparison of resonance compensation in dual-stage actuation system of HDDs , 2001, Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148).

[20]  David K. Schmidt,et al.  Integrated control of hypersonic vehicles - A necessity not just a possibility , 1993 .

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

[22]  Raman K. Mehra,et al.  Time-Domain System Identification Methods for Aeromechanical and Aircraft Structural Modeling , 2004 .

[23]  Keitaro Ohno,et al.  An adaptive resonant mode compensation for hard disk drives , 2006, The 8th IEEE International Workshop on Advanced Motion Control, 2004. AMC '04..

[24]  João Marcos Travassos Romano,et al.  Fast least squares adaptive notch filtering , 1988, IEEE Trans. Acoust. Speech Signal Process..

[25]  David K. Schmidt,et al.  Analytical aeropropulsive-aeroelastic hypersonic-vehicle model with dynamic analysis , 1994 .

[26]  Irene M. Gregory,et al.  Modified dynamic inversion to control large flexible aircraft - What's going on? , 1999 .

[27]  David H. Klyde,et al.  Aeroservoelastic stabilization technique refinement for hypersonic flight vehicles , 1992 .

[28]  Animesh Chakravarthy,et al.  Design of Notch Filters for Structural Responses with Multiaxis Coupling , 1999 .

[29]  Albert Bosse,et al.  ADAPTIVE FILTERS FOR REAL-TIME SYSTEM IDENTIFICATION AND CONTROL , 1997 .

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

[31]  Petros A. Ioannou,et al.  Adaptive control tutorial , 2006, Advances in design and control.

[32]  Maj Mirmirani,et al.  Development of an Airframe-Propulsion Integrated Generic Hypersonic Vehicle Model , 2006 .

[33]  James Krause,et al.  An adaptive control concept for flexible launch vehicles , 1992 .