Active control of a beam using a piezoceramic element
Active control of a beam using a piezoceramic element
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DOI：
10.1088/0964-1726/8/1/013
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发表时间：
1999-02
影响因子：
4.1
通讯作者：
A. Blanguernon;F. Léné;M. Bernadou
中科院分区：
文献类型：
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作者：
A. Blanguernon;F. Léné;M. Bernadou
建立了一个模型来预测一个被称为“压电陶瓷元件”的机械堆的动态响应，该元件由压电传感器、粘弹性阻尼器和压电致动器组成，压电致动器的施加电压由传感器电压反馈。该堆栈通过拉伸工作：选择基于Euler-Bernoulli梁方程的模型。该模型被用来研究“压电陶瓷元件”对悬臂梁振动主动控制的影响。利用状态观测器和Riccati方程确定最优控制律。最后，对理论结果进行了仿真，并与开环条件下的结果进行了比较。
A model is developed to predict the dynamic response of a mechanical stack called a `piezoceramic element' which is composed of a piezoelectric sensor, a viscoelastic damper and a piezoelectric actuator of which the applied voltage is fed back by the sensor voltage. This stack works by stretching: a model based on Euler-Bernoulli beam equations is chosen. This model is then used to investigate the effect of the `piezoceramic element' on the active vibration control of a cantilevered beam. An optimal control law is determined by using a state observer and the Riccati equation. Finally, the theoretical results are simulated and compared with the results obtained in the open-loop condition.