| 基于FEM的正交异性压电复合材料传感研究 |
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| 引用本文： | 赵国旗,沈毅,骆英. 基于FEM的正交异性压电复合材料传感研究[J]. 测试技术学报, 2005, 19(1): 98-102 |
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| 作者姓名： | 赵国旗 沈毅 骆英 |
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| 作者单位： | 江苏大学,理学院,江苏,镇江,212013 |
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| 基金项目： | 国家自然科学基金资助项目(50375069) |
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| 摘 要： | 通过建立被测构件与压电正交异性复合材料(Orthotropic Piezoelectric Composite Materials，OPCM)传感元件的三维有限元(Finite Eleinelit Model，FEM)模型研究OPCM的动态传感特性．采用对被测构件施加冲击载荷的方法获得传感元件输出的电压时域信号，并进行傅立叶变换分析，计算和实验结果都表明OPCM传感元件对同平面内相互正交的应力波具有不同的频响特性，且两者之间有较好的吻合性．
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| 关 键 词： | 压电复合材料 FEM 压电正交异性 传感元件 三维有限元 Model 傅立叶变换 时域信号 冲击载荷 传感特性 频响特性 应力波 构件 |
| 文章编号： | 1671-7449(2005)01-0098-05 |
The Sense Investigation on Orthotropic Piezoelectric Composite Materials Based On FEM |
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| ZHAO Guo-qi,SHEN Yi,LUO Ying. The Sense Investigation on Orthotropic Piezoelectric Composite Materials Based On FEM[J]. Journal of Test and Measurement Techol, 2005, 19(1): 98-102 |
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| Authors: | ZHAO Guo-qi SHEN Yi LUO Ying |
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| Abstract: | This paper studis the dynamic characteristics of the OPCM (Orthotropic Piezoelectric Composite Materials) sensor by making 3-D finite element model of structure and the sensor. Acquiring the output signals of sensor by a sudden press load on the structure, and analysis of the signals by Fourier transformation. Computation results are in good accord with the results of the experiment, they show that the OPCM sensor has different frequency characteristics under Orthotropic stress waves in the same plane. |
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| Keywords: | finite element method OPCM sensor stress wave frequency characteristic |
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