Optimal configuration of a piezoelectric patch for vibration control of isotropic rectangular plates
Optimal configuration of a piezoelectric patch for vibration control of isotropic rectangular plates
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DOI：
10.1088/0964-1726/10/2/401
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发表时间：
2001-04
影响因子：
4.1
通讯作者：
K. Ip;P. Tse
中科院分区：
文献类型：
--
作者：
K. Ip;P. Tse
本技术说明提出了最佳的位置和方向的压电贴片致动器，以提高各向同性板的可控性，对振动。主要重点是单独或同时控制前五种模式。本文考虑四块不同长宽比的矩形铝板，边界条件为简支或悬臂。结合有限元分析的结果，提出了一个公式来预测由单个压电片驱动的板的稳态响应。仿真结果表明，在一般情况下，板块的可控性是不敏感的补丁方向就目前的调查而言。对于简支板，最优贴片位置正好与所考虑的振动模态的反节点重合。然而，这仅适用于悬臂板的特定模式。
This technical note presents the optimal position and orientation of a piezoelectric patch actuator for improving the controllability of isotropic plates against vibration. The main focus is on controlling the first five modes either individually or simultaneously. Four rectangular aluminum plates of different aspect ratios and of either simply-supported or cantilevered boundary condition are considered. A formula incorporating results from finite-element analyses is developed to predict the steady-state responses of plates driven by a single piezoelectric patch. Simulation results show that, in general, the controllability of plates is insensitive to patch orientation as far as the present investigation is concerned. For the simply-supported plates, the optimal patch positions coincide exactly with anti-nodes of the vibration modes being considered. This, however, is only true for specific modes of the cantilevered plates.