纵振激励频率对圆盘弯曲振动特性的影响

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振动与冲击 ›› 2011, Vol. 30 ›› Issue (4) : 100-102.

论文

纵振激励频率对圆盘弯曲振动特性的影响

宁景锋;贺西平;李娜

作者信息 +

The Effects of Different Driving Frequency of Longitudinal Transduceron the Flexural Vibration Characteristics of Circular Plate

NING Jing-feng;HE Xi-ping; LI Na

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文章历史 +

摘要

摘要：利用有限元方法，计算并分析了具有一定大小的激励面积、频率不同的纵向夹心式换能器激励圆盘中心时，产生一阶弯曲振动的规律。结果表明：随着激励源频率的逐渐提高，圆盘弯曲振动的基频在不断增大，节圆半径也在增大，圆盘圆心处的位移振幅先增大后减小。实验测试与有限元计算结果基本吻合。本文的研究为此类复合纵弯振动系统的设计和实际应用提供了一定的参考。

Abstract

Abstract: Using finite element method(FEM), piezoelectric ceramic sandwiched transducers of unchanged excitative area and different frequencies incentives a thin circular plate that produces a first-order flexural vibration, which is studied. The results show that as the excitation frequency increases, fundamental frequency of the circular flexural vibration has also increased, while also increasing the radius of pitch circle, the amplitude of lateral displacement increases firstly and then decreases. It was clarified experimentally that the results are consistent with the FEM basically, which are significant for the designers and applications.

导出引用

宁景锋;贺西平;李娜. 纵振激励频率对圆盘弯曲振动特性的影响[J]. 振动与冲击, 2011, 30(4): 100-102

NING Jing-feng;HE Xi-ping;LI Na. The Effects of Different Driving Frequency of Longitudinal Transduceron the Flexural Vibration Characteristics of Circular Plate[J]. Journal of Vibration and Shock, 2011, 30(4): 100-102