Variable structure control coupled bending-torsional flexible structure system

被引：0
|
作者：
Lü Y. [1 ]
Chen K. [1 ]
Wei Y. [2 ]
机构：
[1] School of Mechanical Engineering, Hangzhou Dianzi University
[2] Institute of Manufacturing Engineering, Zhejiang University
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery | 2010年 / 41卷 / 09期
关键词：
Actuator; Coupled vibration; Flexible structure; Sliding mode variable structure control;
D O I：
10.3969/j.issn.1000-1298.2010.09.040
中图分类号：
学科分类号：
摘要：
A two-link flexible structure system consisting of a flexible bar and a flexible beam was proposed. The coupled bending-torsional vibration of the flexible structure system was investigated. The dynamic equation of the system was established. A piezoelectric torsional actuator was bonded onto the root of a flexible bar to suppress the torsional vibration of the flexible bar, and a piezoelectric bending actuator was bonded onto the root of the flexible beam to suppress the bending vibration of flexible beam. Experimental research was performed using a sliding mode variable structure control strategy with a saturation unit and a filter. The results show that the controlled system is stable, all the bending and torsional modes are effectively suppressed and the tip vibration of the flexible beam is dramatically attenuated.
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页码：199 / 204
页数：5
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