Title :
Robust and adaptive actuator failure compensation designs for a rocket fairing structural-acoustic model
Author :
Xidong Tang ; Gang Tao ; Lingfeng Wang ; Stankovic, John A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Univ., Charlottesville, VA, USA
Abstract :
The actuator failure compensation problem is formulated for active vibration control of a rocket fairing structural-acoustic model with unknown actuator failures. Performance of a nominal optimal control scheme in the presence of actuator failures is studied to show the need of effective failure compensation. A robust control scheme and two adaptive control schemes are developed, which are able to ensure the closed-loop system signal boundedness in the presence of actuator failures whose failure pattern and values are unknown. The adaptive scheme for parameterizable failures ensures asymptotic stability despite failure uncertainties. Simulation results verified their failure compensation effectiveness.
Keywords :
actuators; adaptive control; aerospace control; asymptotic stability; closed loop systems; compensation; optimal control; robust control; rockets; vibration control; active vibration control; adaptive actuator failure compensation design; adaptive control scheme; asymptotic stability; closed-loop system signal boundedness; nominal optimal control scheme; parameterizable failure; robust control scheme; rocket fairing structural-acoustic model; Actuators; Adaptive control; Optimal control; Programmable control; Robust control; Robustness; Rockets; Target tracking; Uncertainty; Vibration control;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2004.1386887
