| 压电类智能梁元的力学特性及最优控制 |
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| 引用本文： | 任秀华,丁桦,麦汉超.压电类智能梁元的力学特性及最优控制[J].强度与环境,2000(1):42-49. |
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| 作者姓名： | 任秀华 丁桦 麦汉超 |
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| 作者单位： | 1. 北京航空航天大学固体力学研究所,北京,100083
2. 中国科学院力学研究所,北京,100080 |
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| 摘 要： | 本文分别从压电的传感器和驱动器的力学和电磁学特性入手，详细地描述了带有反馈装置的表面铺设传感器和驱动器的智能梁的力学特性，给出了其微分方程；同时，根据有限元理论，推导了智能梁离散系统的动态微分方程及能量方程在理论分析的基础上，对反馈装置带来的控制力进行优化分析，尽可能地提高了驱动器的使用效率。
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| 关 键 词： | 压电材料 最优控制 智能梁 传感器 驱动器 |
| 修稿时间： | 1999-04-01 |
Mechanical Performances of Piezoelectric Element and Optimal Control |
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| Ren Xiuhua,Ding Hua,Mai Hanchao.Mechanical Performances of Piezoelectric Element and Optimal Control[J].Structure & Environment Engineering,2000(1):42-49. |
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| Authors: | Ren Xiuhua Ding Hua Mai Hanchao |
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| Abstract: | Based on the performances of the piezoelectric actuators and sensors,the characteristics of beam wth highly distributed piezoelectric sensors and actuators and afeedback conditioning system are analyzed,and the dynamic differential equation is also derived.A finite element model of intelligent beam has been formulated to derive the differential equation and the energy equation.In order to use actuators most effectively,the optimal control of the feedback force excited by the actuator has been analyzed in the last part of the paper. |
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| Keywords: | Intelligent material Piezoelectric material Optimal control |
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