| 压电双晶片的能量传输特性分析 |
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| 引用本文： | 叶会英,浦昭邦.压电双晶片的能量传输特性分析[J].光学精密工程,2000,8(4):345-350. |
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| 作者姓名： | 叶会英 浦昭邦 |
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| 作者单位： | 1. 郑州大学电子工程系,河南,郑州,450052
2. 哈尔滨工业大学计电学院自动化测试与控制系,黑龙江,哈尔滨,150001 |
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| 摘 要： | 基于压电双晶片的准静态本构方程,详细地分析了准静态情况下悬臂梁式双晶片执行器在常见的三种不同载荷(力、力矩、压力)情况下的机电转换特性,即有效机电耦合系数、最大能量传输系统、最大输出机械能量时效率.分析结果表明:这些特性主要由压电双晶片材料的横向机电耦合系数k31决定;三种载荷中,以力矩形式输出机械能时压电双晶片执行器的效率最高,以力的形式输出时稍低,以压力形式(如用于推动气体或液体)输出时效率最低.这些结论对于设计压电双晶片执行器的结构具有指导意义.
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| 关 键 词： | 压电双晶片 执行器效率 机电耦合系数 微执行器 |
| 文章编号： | 1004-924X(2000)04-0345-06 |
| 收稿时间： | 1999-10-28 |
| 修稿时间： | 1999-10-28 |
Analysis of the capacity of energy transmission for piezoelectric bimorph |
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| YE Hui-ying,PU Zhao-bang.Analysis of the capacity of energy transmission for piezoelectric bimorph[J].Optics and Precision Engineering,2000,8(4):345-350. |
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| Authors: | YE Hui-ying PU Zhao-bang |
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| Affiliation: | 1. Dept. of Electronic Engineering, Zhengzhou University, Zhengzhou 450052, China;2. Dept. of Automatic Measurement and Control, School of Computer and Electric Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The electromechanical conversion, consisted of the capacity of energy transmission, the effectiveness and the maximum mechanical output energy of piezoelectric bimorphs under three constant loading conditions(force, moment, pressure)are quantitatively analyzed based on its cantilever constitutive equations. As a result, the electromechanical conversion mostly depend on the transverse electromechanical coupling factor k 31, and they are largest in the case of a moment, smaller in the case of a force, and smallest in the case of a pressure. These conclusions give directions for designing the structure of piezoelectric bimorphs actuators. |
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| Keywords: | piezoelectric bimorph effectiveness of actuator electromechanical coupling factor microactuator |
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