连续激励下的圆盘粘弹性波导吸振器研究

A Theoretical and Experimental Study of Viscoelastic Circular Plate Waveguide Absorber under Continual Interfere

分别对连续激励下基于经典薄板理论和基于Mindlin中厚板理论的圆盘粘弹性波导吸振器进行了动力学分析,对振动波传播机理和耗能规律进行了理论和仿真研究,并在此基础上把两种圆盘粘弹性波导吸振器用于家用小型冰柜的压缩机减振实验中。理论和实验研究表明,圆盘粘弹性波导吸振器对低频振动具有良好的抑制作用。

This paper presents two dynamic analyseson a viscoelastic circular plate waveguide absorber undercontinual interfere: the first one is based on the classicalthin plate theory, the second one based on the Mindlinplate theory. Then the wave propagation along viscoelas-tic circular plate and energy dissipating principles are dis-cussed. On the basis of theoretical and simulating re-searches, a thin viscoelastic circular plate waveguide ab-sorber and a mid--thick viscoelastic circular plate waveg-uide absorber were applied as damping devices in the vi-bration control experiments of a compression engine onrefrigerator. The experimental results show that vis-coelastic circular plate waveguide absorbers have good ef-fects on vibration control, especially in the low frequencydomain.