橡胶压电堆隔振系统参数最优化反馈控制

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Abstract In order to attenuate vibration on the impact of aircraft instrument, an active and passive hybrid vibration isolator by combining rubber and piezostack is proposed. An optimal control based on genetic algorithm is advised, and then the performance of the system is verified by experiment. After the model and equation of system are derived, the parameters of rubber and piezostack are experimentally identified, respectively. The vibration transmissibility is used as objective function and genetic algorithm is applied to optimize the parameters of velocity feedback. At the same time, the stability of control system is considered. Subsequently, the experimental platform is established and the performance is evaluated by experiment using optimal control. The experimental results verify the isolation performance is better than pure passive isolator, especially at resonant frequency.

Key words： vibration isolation piezostack actuator feedback control optimize

Received: 29 May 2015 Published: 15 July 2016

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	Articles by authors
	LIU Lu1
	2
	QIU Jin-hao1
	JI Hong-li1
	GAO Jun1
	LIU Can-chang1
	2

Cite this article:

LIU Lu1,2,QIU Jin-hao1, et al. Vibration isolation system of rubber and piezostack based on optimizing feedback parameters controller[J]. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(14): 7-12.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2016/V35/I14/7

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