| 压电陶瓷短圆柱耦合振动的研究 |
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| 引用本文： | 崔秀庭,梁家惠,邬铭新.压电陶瓷短圆柱耦合振动的研究[J].航空学报,1989,10(10):545-552. |
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| 作者姓名： | 崔秀庭 梁家惠 邬铭新 |
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| 作者单位： | 北京航空航天大学
(崔秀庭，梁家惠)，北京航空航天大学(邬铭新) |
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| 摘 要： | 压电陶瓷圆柱振子的振动问题,由于厚向振动和径向振动之间的耦合作用,使问题变得非常复杂。迄今为止,许多研究者在这方面所做的工作,大体上可分为两类:一类是从各向同性圆柱体振动的近似解出发,求解压电陶瓷圆柱振子的振动问题;另一类是从压电陶瓷圆柱振子的压电本构方程组和运动方程组出发,利用数学上的伴随算子法计算其数值解。这两种方法不仅运算过程都相当复杂,而且都不能直观地反映出压电振子的物理参数的影响。
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| 关 键 词： | 压电传感器 声传感器 各向异性圆柱振子 |
| 收稿时间： | 1988-02-10; |
THE STUDY OF THE RADIAL-AXIAL COUPLING VIBRATION FOR PIEZOELECTRIC-CERAMICS-CYLINDRICAL-VIBRATOR |
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| Beijing University of Aeronautics and Astronautics Cui Xiuting,Liang Jiahui and Wu Mingxin.THE STUDY OF THE RADIAL-AXIAL COUPLING VIBRATION FOR PIEZOELECTRIC-CERAMICS-CYLINDRICAL-VIBRATOR[J].Acta Aeronautica et Astronautica Sinica,1989,10(10):545-552. |
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| Authors: | Beijing University of Aeronautics and Astronautics Cui Xiuting Liang Jiahui and Wu Mingxin |
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| Institution: | Beijing University of Aeronautics and Astronautics |
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| Abstract: | In this paper we have obtained a zero-order approximate solution of the partial differential equations with the separation of variables for the piezoelectric-ceramics-cylindrical vibrator on the assumptions of D1 =0 and D3=const. Using this solution, the modification of electric displacement D caused by the inverse piezoelectric effect can be calculated by the charge -continuity equation. By substituting the modificative D in the above partial differential equations, we get a first-order approximate solution for the vibrator. The theoretical solution is in agreement with the experimental measurements. |
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| Keywords: | piezoelectric transducers sound transducers anisotropic cylindrical vibrator |
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