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Active vibration control of piezoelectric laminated beams
Author(s): 
Pages: 181-190
Year: Issue:  1
Journal: Journal of Ship Mechanics

Keyword:  智能结构一阶剪切变形精细积分LQR;
Abstract: 智能材料因其低质量、宽频带和强适应性等特点,在柔性结构振动主动控制方面有了极大的应用.基于Mindlin一阶剪切变形理论,考虑机电耦合作用,推导了含电势自由度的4节点四边形压电层合板/壳单元的有限元列式,并对含压电层的典型柔性结构的动力特性进行了分析.采用精细积分法计算结构的状态空间响应,用线性二次型调节器( LQR)方法设计输出反馈控制器,实现了压电层合柔性梁的振动主动控制.
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