光电层合圆柱薄壳的激励特性及控制

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振动与冲击 ›› 2009, Vol. 28 ›› Issue (9) : 9-14.

论文

光电层合圆柱薄壳的激励特性及控制

王新杰岳洪浩邹鸿生邓宗全

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ACTUATION CHARACTERISTICS AND CONTROL OF THIN CYLINDRICAL SHELLS LAMINATED WITH PHOTOSTRICTIVE ACTUATORS

WANG Xinjie YUE Honghao Tzou H S DENG Zongquan

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摘要

光致伸缩材料（如铁电陶瓷材料镧改性锆钛酸铅）在高能光束照射下具有光致形变效应，可应用于柔性结构的非接触激励与控制。本文在研究光致伸缩作动器光-电-热-力等能场耦合机理基础上，构建出光致伸缩作动器的数学模型，推导出光电层合圆柱壳振动控制方程。利用模态控制因子对不同布局下作动器的控制效果做出评价，同时对变曲率圆柱壳的薄膜作用与弯曲作用进行了较深入研究。最后，利用Lyapunov与速度比例反馈控制对所提出的布局进行了振动主动控制分析，结果表明分布式光致伸缩作动器对圆柱薄壳低频振动的控制效果良好。

Abstract

Photostrictive materials, like ferroelectric lanthanum-modified lead zirconate titanate (PLZT) ceramics, can produce a photodeformation effect under irradiation of high-energy lights and thus can be employed in non-contact actuation and control of flexible structures. Based on couplings of opto-piezo-thermoelastic fields, mathematical modeling of the photostrictive actuator is presented. Governing equations of the cylindrical shell laminated photostrictive actuators are formulated. The control effectiveness of distributed actuators with two configurations is evaluated with the control actions. Based on the configuration of the actuators, the bending effect and membrane effect are analyzed while the curvature angels of the cylindrical shell are changing. Finally, the Lyapunov and proportional velocity feedback control algorithms are studied and the simulation results show that the distributed actuators are effective to controlling the low-frequency oscillations of thin cylindrical shells.

导出引用

王新杰岳洪浩邹鸿生邓宗全 . 光电层合圆柱薄壳的激励特性及控制[J]. 振动与冲击, 2009, 28(9): 9-14

WANG Xinjie YUE Honghao Tzou H S DENG Zongquan. ACTUATION CHARACTERISTICS AND CONTROL OF THIN CYLINDRICAL SHELLS LAMINATED WITH PHOTOSTRICTIVE ACTUATORS [J]. Journal of Vibration and Shock, 2009, 28(9): 9-14