| 厚度振动模态优化设计 |
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| 引用本文： | 赵慧,王艳,顾亦炜,刘佳.厚度振动模态优化设计[J].声学技术,2017,36(2):183-187. |
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| 作者姓名： | 赵慧 王艳 顾亦炜 刘佳 |
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| 作者单位： | 上海船舶电子设备研究所, 上海 201108,水声对抗技术重点实验室, 上海 201108,上海船舶电子设备研究所, 上海 201108,上海船舶电子设备研究所, 上海 201108 |
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| 摘 要： | 实际工作中,压电陶瓷圆片振子的尺寸是有限的,振子在厚度振动基频处与径向振动高阶模有较强的耦合作用。通过理论计算和有限元仿真分析耦合作用的影响。为优化厚度振动模态,提出在压电圆片振子的中心打孔的方法,用孔径大小来调节径向高阶振动频率。实验证明压电圆片振子在中心打孔对优化厚度振动模态有效。
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| 关 键 词： | 厚度振动 耦合作用 开孔圆片 |
| 收稿时间： | 2016/6/21 0:00:00 |
| 修稿时间： | 2016/8/20 0:00:00 |
Optimum design of the thickness vibration modal |
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| ZHAO Hui,WANG Yan,GU Yi-wei and LIU Jia.Optimum design of the thickness vibration modal[J].Technical Acoustics,2017,36(2):183-187. |
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| Authors: | ZHAO Hui WANG Yan GU Yi-wei and LIU Jia |
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| Affiliation: | Shanghai Marine Electronic Equipment Research Institute, Shanghai 201108, China,Science and Technology on Underwater Acoustic Antagonizing Laboratory, Shanghai 201108, China,Shanghai Marine Electronic Equipment Research Institute, Shanghai 201108, China and Shanghai Marine Electronic Equipment Research Institute, Shanghai 201108, China |
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| Abstract: | In actual work, the dimension of PZT piezoelectric ceramics disks is limited. There is a strong coupling between the fundamental frequency of thickness vibration and the higher order modes of radial vibration. In this paper, the impact of coupling is analyzed by theoretical calculation and finite element simulation. In order to optimize the thickness vibration, this paper presents a drilling method at the disk center to adjust the frequency of high order radial vibration by pore size. Experiments show the effectiveness of the drilling method for optimizing the thickness vibration mode. |
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| Keywords: | thickness vibration coupling effect holing piezoelectric ceramic disc |
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