| 微梁谐振器高阶振动时的挤压薄膜阻尼效应 |
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| 引用本文： | 杜全根,胡元太,陈传尧.微梁谐振器高阶振动时的挤压薄膜阻尼效应[J].华中科技大学学报(自然科学版),2003,31(10):79-81. |
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| 作者姓名： | 杜全根 胡元太 陈传尧 |
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| 作者单位： | 华中科技大学土木工程与力学学院 |
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| 摘 要： | 研究了在微梁谐振器结构中，梁作高阶振动时挤压气体薄膜的阻尼效应．采用无量纲化法、模态分析法和摄动法对可压缩雷诺方程进行线性化，求得在空气压力和外加电载荷激励作用下梁振动的共振频率变化比和品质因子等动力特性的变化情况．结果显示这些特性参数都可以用两个与梁的尺寸有关的无量纲参数表示。
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| 关 键 词： | 谐振器 模态分析 挤压薄膜阻尼 |
| 文章编号： | 1671-4512(2003)10-0079-03 |
| 修稿时间： | 2002年2月26日 |
Squeeze film damping effects on a beam-shaped micro resonator at high excited frequency |
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| Du Quangen Hu Yuantai Chen Chuanyao Du Quangen Master,College of Civil Eng. & Mechanics,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..Squeeze film damping effects on a beam-shaped micro resonator at high excited frequency[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(10):79-81. |
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| Authors: | Du Quangen Hu Yuantai Chen Chuanyao Du Quangen Master College of Civil Eng & Mechanics Huazhong Univ of Sci & Tech Wuhan China |
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| Institution: | Du Quangen Hu Yuantai Chen Chuanyao Du Quangen Master,College of Civil Eng. & Mechanics,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | The squeeze film damping effects on beam shaped micro resonator was studied. The methods of non dimensionalization, modal analysis and perturbation parameters were applied to linearize the compressible Reynolds equation. The dynamic characteristics of the microstructure were obtained. The results show that these characteristics can be written as a function of two dimensionless parameters dependent on the sizes of the microstructure. |
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| Keywords: | resonator modal analysis squeeze film damping |
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