Advances in Helicopter Vibration Control Methods Time-Periodic Reduced Order Modeling and H 2 /H 1 Controller Design

摘要: This paper presents the implementation of recent developments in system theory within a novel framework to enhance vibration control helicopters. Particular focus is given helicopters ying forward ight regime, where exhibits time-periodic behavior. The objective this provide high performance controllers that can satisfy stability and design criteria when implemented high-delity computer simulations or real time experiments. emphasizes integration state-of-the art coupled Computational Fluid Dynamics (CFD) /Computational Structural (CSD) analysis controller process obtain accurate reduced-order aeroelastic models helicopter rotor system. Design H2 H1 are proposed owing their rigorous formulation based on Floquet-Lyapunov theory, advantages over time-lifted controllers. Within framework, state-space form were identied using robust subspace model identication method. synthesis problem was solved both Linear Matrix Inequality periodic Riccati formulations. validated simulations. computational eciency these advanced methods, necessity demonstrated by implementing an actively controlled ap strategy for suppression