Feedback control design with vibration suppression for flexible air-breathing hypersonic vehicles |
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Authors: | GAO Yan WU HuaiNing WANG JunWei GUO Lei |
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Affiliation: | Scie~,c~ and Technology on Aircraft Control Laboratory, School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China |
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Abstract: | This paper investigates the problem of feedback control design with vibration suppression for a flexible air-breathing hypersonic vehicle(FAHV).FAHV includes intricate coupling between the engine and flight dynamics,as well as complex interplay between flexible and rigid modes,which results in an intractable system for the control design.In this paper,a longitudinal model,which is described by a coupled system of ordinary diferential equations(ODEs)and partial diferential equations(PDEs),is adopted.Firstly,a linearized ODE model for the rigid part is established around the trim condition,while vibration of the fuselage is described by PDEs.Secondly,based on the Lyapunov direct method,a control law via ODE state feedback and PDE boundary output feedback is designed for the system such that the closed-loop exponential stability is ensured.Finally,simulation results are given to illustrate the efectiveness of the proposed design method. |
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Keywords: | flexible air-breathing hypersonic vehicle (FAHV) Euler-Bernoulli beam vibration suppression Lyapunov direct method boundary control |
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