Vibration Control of a Beam with Piezoelectric Film Sensors/Actuators.
Vibration Control of a Beam with Piezoelectric Film Sensors/Actuators.
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使用压电薄膜传感器/执行器对梁进行振动控制。
DOI：
10.1299/kikaic.65.1937
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
M. Endo
中科院分区：
文献类型：
--
作者：
Tsutomu Nishigaki;H. Inoue;M. Endo
研究了采用压电薄膜传感器/致动器的柔性梁振动控制问题。将三角形压电薄膜粘贴在柔性梁的两个表面上，并将其作为传感器/致动器对。推导了梁在两种边界条件下的运动方程和传感器输出：1）固定自由，2）两端简支。采用直接速度反馈（DVFB）控制律，并使用李雅普诺夫直接法分析检查闭环稳定性。在简谐激励条件下，计算了梁的强迫振动响应。分析结果表明，前几个弯曲模式可以控制与合理的反馈增益。在简支情况下，反对称模态（偶模态）也得到了有效控制，从而表明所提出的控制方案对柔性梁的多模态振动控制是有效的。
Vibration control of a flexible beam with piezoelectric film sonsors/actuators is investigated. Triangular-shaped piezoelectric films are bonded on the both surfaces of a flexible beam, and are treated as collocated sensor/actuator pairs. Equations of motions of the beam and sensor output are derived for two boundary conditions: 1) fixed-free, 2) both ends simply supported. Direct velocity feedback (DVFB) control law is employed, and closed-loop stability is analytically checked using Lyapunov's direct method. Forced vibration responses of the beams are calucutated under the condition that the system is harmonically excited. Analytical results show that first several bending modes can be controlled with reasonable feedback gains. In the simply supported case, anti-symmet-rical modes (even modes) are also efficiently controlled, and thus it is shown that the proposed control scheme is valid for multi-mode vibration control' of flexible beams.