周期局域共振蜂窝板的弯曲振动特性研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (24) : 108-111.

论文

周期局域共振蜂窝板的弯曲振动特性研究

黄丽娟程治新廖学兵黄林昊

作者信息 +

The flexural vibration properties of a periodic honeycomb sandwich plate

Huang Lijuan Cheng Zhixin Liao Xuebing Huang Linhao

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摘要

基于声子晶体局域共振原理，设计了周期附加局域振子的蜂窝夹层板结构，利用双协调自由界面模态综合法，计算了周期局域共振蜂窝夹层板弯曲振动的频响特性，并给出了蜂窝夹层板的振型图。分析了局域振子刚度、质量等参数对振动带隙的影响特性，得出了带隙变化的定性规律。研究表明在振动带隙频率范围内，弯曲振动在此蜂窝夹层板能得到有效的抑制，该研究有望为复杂板壳振动控制提供一条新的技术途径。

Abstract

Based on the locally resonant mechanism of Phononic Crystals, a honeycomb sandwich plate with vibration absorbers attached periodically is constructed. Utilizing the Mode Synthetic Technology, the frequency response function (FRF) of the periodic honeycomb sandwich plate (PHSP) is calculated and the vibration modes are presented. The effects of the vibration absorber parameters such as stiffness, mass on the vibration band gap are analyzed, and the qualitative changing law of the vibrational band gaps is obtained. Finally, the vibration response of the PHSP with pinned supports in the time domain is performed. Results show that the propagation of the flexural vibration in the PHSP will be effectively attenuated. The research of this paper may provid a new way to the vibration control of plates and shells.

导出引用

黄丽娟程治新廖学兵黄林昊. 周期局域共振蜂窝板的弯曲振动特性研究 [J]. 振动与冲击, 2012, 31(24): 108-111

Huang Lijuan Cheng Zhixin Liao Xuebing Huang Linhao. The flexural vibration properties of a periodic honeycomb sandwich plate[J]. Journal of Vibration and Shock, 2012, 31(24): 108-111