| 考虑压电效应时压电陶瓷圆形振子的耦合振动 |
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| 引用本文： | 林书玉.考虑压电效应时压电陶瓷圆形振子的耦合振动[J].声学技术,1994,13(1):15-20. |
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| 作者姓名： | 林书玉 |
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| 作者单位： | 陕西师范大学应用声学研究所 |
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| 摘 要： | 在考虑压电效应的情况下，本文对压电陶瓷圆形振子的耦合振动进行了研究。根据压电陶瓷圆形振子的运动方程及压电方程，通过引入振子不同振动模式之间的机械耦合系数，分析了振子轴向及径向振动之间的耦合关系，得出了振子耦合振动的电导纳表达式，并导出了共振频率方程。与一维理论的结果相比，由本文理论得出的振子共振频率与实际测量值更加符合。
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| 关 键 词： | 压电效应 耦合振动 压电陶瓷 |
| 收稿时间： | 1993/7/21 0:00:00 |
| 修稿时间： | 1993/11/6 0:00:00 |
Coupled vibration of piezoelectric ceramic circular vibrators as the piezoelectric effect considered |
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| LIN Shuyu.Coupled vibration of piezoelectric ceramic circular vibrators as the piezoelectric effect considered[J].Technical Acoustics,1994,13(1):15-20. |
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| Authors: | LIN Shuyu |
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| Affiliation: | Applied Acoustics Institute, Shanxi Teachers University. Xian |
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| Abstract: | The coupled vibration of piezoelectric ceramic disks was studied when the piezoelectric effect is considered. Based on the piezoelectric and motion equations, introducing themechanical coupling coefficient the electric admittance and the frequency equation werederived, the relation between the axial and radial vibrations was analyzed. The resonantfrequencies of the vibrators were computed' Compared with the measured frequencies thecomputed results of this paper are better those computed by one dimensional theory. |
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| Keywords: | Piezoelectric effect coupled vibration resonant frequency electric admittance electro-mechanical coupling coefficient mechanical coupling coefficient |
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