| 变截面压电智能梁的频率分析 |
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| 引用本文： | 马治国 Jiang,ZW. 变截面压电智能梁的频率分析[J]. 机械科学与技术, 1999, 18(2): 224-225,229 |
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| 作者姓名： | 马治国 Jiang ZW |
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| 作者单位： | 东北大学 |
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| 基金项目： | 国家自然科学基金,中日合作日本文部省资助项目 |
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| 摘 要： | 建立了变截面压电智能梁的动态模型，分析了表面粘贴压电元件的均质梁的固有频率。在分析中考虑了压电元件和粘结层的影响，同时，还考虑了梁的剪切变形和转动惯量。研究表明，压电元件的刚度和惯量对梁的频率影响很大，粘结层剪切的弹性模量对一阶频率影响较小；当考虑梁的剪切变形和转动惯量时，则对梁的高阶频率影响较大。
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| 关 键 词： | 变截面梁 压电元件 固有频率 |
Frequency Analysis of Section varying Piezoelectric Intelligent Beams |
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| Ma Zhiguo Wen Bangchun Yan Yunhui Jiang Z W. Frequency Analysis of Section varying Piezoelectric Intelligent Beams[J]. Mechanical Science and Technology for Aerospace Engineering, 1999, 18(2): 224-225,229 |
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| Authors: | Ma Zhiguo Wen Bangchun Yan Yunhui Jiang Z W |
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| Affiliation: | Ma Zhiguo 1 Wen Bangchun Yan Yunhui Jiang Z W |
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| Abstract: | The dynamic model of the section varying piezoelectric beams with surface bonded piezoelectric element is developed and the natural frequency is analyaed.In the analysis,the stiffness and inertia of the piezoelectric element and bonding layer are inclued as well as the shearing deformation and rotary inertia of the beam.It is shown that the effects of the stiffness and inertia of the piezoelectric element on the natural frequency of the beam is significant,and that of the elastic modulus of the bonding layer is small.The result also denotes the shearing deformation and rotary inertia of the beam have significant effect on the high frequency. |
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| Keywords: | Section varying beams Piezoelectric element Natural frequency |
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