Genetic algorithm based wireless vibration control of multiple modal for a beam by using photostrictive actuators
Genetic algorithm based wireless vibration control of multiple modal for a beam by using photostrictive actuators
复制标题
基于遗传算法的光致伸缩致动器多模态梁无线振动控制
DOI：
10.1016/j.apm.2013.06.032
复制
发表时间：
2014-01
影响因子：
5
通讯作者：
Wang Hongtao
中科院分区：
文献类型：
--
作者：
郑世杰;Lian Jingjing;Wang Hongtao
镧改性锆钛酸铅（PLZT）执行器能够将光子能转化为机械运动，在智能结构和机器的远程结构振动控制应用中具有巨大潜力。本文提出了一种基于遗传算法的新型控制算法，用于通过光致伸缩执行器对梁结构进行多模态振动控制。两对光致致动器与光束层叠，光照射的交替与相应模态速度方向的变化一致。推导了具有不同边界条件的梁的模态力指数，并使用二进制编码的遗传算法来优化光致致动器的位置和尺寸，以最大化模态力指数并保证两对光致致动器引起的总模态力指数为正。分析了设定/变光强照射下梁多种振动模式的控制效果。数值结果表明，该方法稳健且高效，并且使用策略性定位的执行器贴片可以有效控制主导结构振动的前两种弯曲模式。
The lanthanum-modified lead zirconate titanate (PLZT) actuator, which are capable of converting photonic energy to mechanical motion, have great potential in applications of remote structural vibration control of smart structures and machines. In this paper, a novel genetic algorithm based controlling algorithm for multi-modal vibration control of beam structures via photostrictive actuators is proposed. Two pairs of photostrictive actuators are laminated with the beams and the alternation of light irradiation is in accordance with the changing of the corresponding modal velocity direction. The modal force indexes for beams with different boundary conditions are derived and a binary-coded GA is used to optimize the locations and sizes of photostrictive actuators to maximize the modal force index and guarantee the overall modal force index induced by two pairs of photostrictive actuators is positive. The control effect of multiple vibration modes of beams under irradiation of set/variable light intensity is analyzed. Numerical results demonstrate that the method is robust and efficient, and the use of strategically positioned actuator patches can effectively control the first two bending modes that dominate the structural vibration.
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DOI：
10.1115/1.2893923
发表时间：
1998-10
期刊：
Journal of Vibration and Acoustics
影响因子：
--
作者：
B. Liu;H. Tzou
通讯作者：
B. Liu;H. Tzou
影响因子：
5.7
作者：
R. He;S. Zheng
通讯作者：
R. He;S. Zheng
影响因子：
4.1
作者：
H. Tzou;C. Chou
通讯作者：
H. Tzou;C. Chou
影响因子：
4.1
作者：
H. Shih;H. Tzou;Wilbur Walters
通讯作者：
H. Shih;H. Tzou;Wilbur Walters
影响因子：
4.1
作者：
Shijie Zheng;Xinwei Wang;Wanji Chen
通讯作者：
Shijie Zheng;Xinwei Wang;Wanji Chen