| An Analytical Method for Calculating P-SV Acoustical Field Excited by a Piezoelectric Strip with Finite Width and Thickness |
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| 作者姓名： | 张碧星 汪承灏 Anders Bostroem |
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| 作者单位： | [1]Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080 [2]Department of Applied Mechanics, Chalmers University of Technology, SE-412 96, Goeteborg, Sweden |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10134020 and 10374098. |
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| 摘 要： |
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| 关 键 词： | 压电材料 弹性空间 声场 压电条 各向异性 |
| 收稿时间： | 2005-08-03 |
| 修稿时间： | 2005-08-03 |
An Analytical Method for Calculating P-SV Acoustical Field Excited by a Piezoelectric Strip with Finite Width and Thickness |
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| ZHANG Bi-Xing, WANG Cheng-Hao, Anders Bostroem.An Analytical Method for Calculating P-SV Acoustical Field Excited by a Piezoelectric Strip with Finite Width and Thickness[J].Chinese Physics Letters,2005,22(11):2869-2872. |
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| Authors: | ZHANG Bi-Xing WANG Cheng-Hao Anders Bostroem |
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| Abstract: | A piezoelectric strip with finite width and thickness is placed on top of an isotropic elastic half-space. Acoustical field can be excited when a voltage is across the piezoelectric strip. An analytical method is presented to calculate the acoustical field by the dynamics characteristics of the piezoelectric strip. Considering the piezoelectric strip as an anisotropic material of the 6 mm-type crystal system, we study the two-dimensional P-SV acoustical fields inside the piezoelectric strip and the isotropic half-space. The displacement and stress distributions are analysed thoroughly. The effects of the width and thickness of the piezoelectric strip and other parameters on the acoustical field are also analysed. |
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