| 石英晶体板高频振动的三维有限元分析 |
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| 引用本文： | 吴荣兴,李继亮,于兰珍,王骥. 石英晶体板高频振动的三维有限元分析[J]. 压电与声光, 2014, 36(5): 821-824 |
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| 作者姓名： | 吴荣兴 李继亮 于兰珍 王骥 |
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| 作者单位： | （1. 宁波职业技术学院 建筑工程系，浙江 宁波 315800；;2. 宁波大学 机械与力学学院, 浙江 宁波 315211） |
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| 基金项目： | 国家自然科学基金资助项目（10932004）；浙江省教育厅高校科研基金资助项目（Y201327293）；浙江省重中之重学科开放基金资助项目(zj1202)，宁波职业技术学院青年博士创新基金资助项目(2013001) |
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| 摘 要： | 通过建立石英晶体板的三维模型,运用有限元分析软件ANSYS获得了石英晶体板厚度剪切振动的振动频率和位移云图。验证了数值计算结果的收敛性并提出了避免振动模态强烈耦合的石英晶体板最佳长厚比的选取方法。模型分析过程中发现,六面体网格比四面体网格易观察到石英晶体板的厚度剪切振动。
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| 关 键 词： | 石英晶体谐振器 板 有限元法 厚度剪切振动 频率 位移 |
Three dimensional Finite Element Analysis for High Frequency Vibrations of Quartz Crystal Plate |
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| WU Rongxing,LI Jiliang,YU Lanzhen,and WANG Ji. Three dimensional Finite Element Analysis for High Frequency Vibrations of Quartz Crystal Plate[J]. Piezoelectrics & Acoustooptics, 2014, 36(5): 821-824 |
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| Authors: | WU Rongxing LI Jiliang YU Lanzhen and WANG Ji |
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| Affiliation: | (1.Dept. of Architectural Engineering, Ningbo Polytechnic, Ningbo 315800,China;;2.School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211,China) |
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| Abstract: | The vibration frequency and displacement shapes of thickness shear vibrations of quartz crystal plate were obtained by establishing three dimensional model of quartz crystal plate and using the finite element software ANSYS. The convergence of numerical results was verified and the selection method of optimal length/thickness of quartz crystal plate was proposed for avoiding strong coupling of vibration modes. The hexahedron mesh was more easily to find the thickness shear vibrations of quartz crystal plate compared with tetrahedron mesh during modeling. |
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| Keywords: | quartz crystal resonator plate finite element method thickness shear vibration frequency displacements |
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