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智能结构压电执行器位置优化的模态力准则

李宾,李玉刚,殷学纲,黄尚廉   

  1. 后勤工程学院!重庆400041,重庆大学智能结构研究中心!重庆400044,重庆大学智能结构研究中心!重庆400044,重庆大学智能结构研究中心!重庆400044
  • 发布日期:2000-02-25

The Modal Force Rule of Point Piezoelectric Actuator Place Optimization on Intelligent Beam and Frame

Li Bin (Logistic Engineering College,Chongqing 400041) Li Yugang Yin Xuegang Huang Shanglian (Intelligent Structure Research Center of Chongqing University,Chongqing 400044)   

  • Published:2000-02-25
  • Supported by:
    国家自然科学基金!59635140;;国家教委博士点基金;;航空工业总公司基金

摘要: 基于模态空间控制理论与点压电执行器的Euler-Bernoulli点力模型,推导得出了柔性杆梁结构上的点压电执行器所产生的模态控制力与压电片位置处的模态应变成正比的结论。由此提出了点压电执行器置于各阶模态应变的最大值处的最大模态力位置优化准则, 计算机仿真结果证明了以上准则的有效性。

关键词: 压电执行器, 压电传感器, 位置, 优化, 计算机仿真

Abstract: The conclusion is given that the modal control forces produced by point piezoelectric actuators on flexible beam and frame are direct proportion to the modal strains at the places pasted piezoelectric flakes,based on modal control theory and Euler Bernoulli point force model of point piezoelectric actuator.According to the conclusion,the maximal modal force rule of point piezoelectric actuator place optimization has been put out that point piezoelectric actuator should be placed at the position where each order modal strain is maximal.The computer emulating results of intelligent flexible beam and frame show that the rule is correct and effective.