Parameter-dependent vibration-attenuation controller design for electro-hydraulic actuated linear structural systems

作     者：Weng Falu Mao Weijie 

作者机构：State Key Lab of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University Hangzhou 310027 China School of Mechanical and Electrical Engineering Jiangxi University of Science and Technology Ganzhou 341000 China 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2012年第11卷第1期

页      面：73-82页

核心收录：

学科分类：08[工学] 0818[工学-地质资源与地质工程] 081402[工学-结构工程] 0815[工学-水利工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0802[工学-机械工程] 0835[工学-软件工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 080201[工学-机械制造及其自动化] 

基　　金：National Natural Science Foundation Under Grant No.61074045,60721062 the 973 Program 2006CB705400 of China 

主　　题：structural system electro-hydraulic servo system robust stabilization vibration attenuation parameter-dependent controller 

摘      要：The problem of robust active vibration control for a class of electro-hydraulic actuated structural systems with time-delay in the control input channel and parameter uncertainties appearing in all the mass, damping and stiffness matrices is investigated in this paper. First, by introducing a linear varying parameter, the nonlinear system is described as a linear parameter varying （LPV） model. Second, based on this LPV model, an LMI-based condition for the system to be asymptotically stabilized is deduced. By solving these LMIs, a parameter-dependent controller is established for the closed- loop system to be stable with a prescribed level of disturbance attenuation. The condition is also extended to the uncertain case. Finally, some numerical simulations demonstrate the satisfying performance of the proposed controller.