关键词: 周期结构, 滤波特性, 振动控制, 隔振器

Abstract:

The theory governing the operation of this class of passive periodic mounts was introduced by using spectral finite element and transfer matrix methods.The filtering characteristics of periodic mounts made of aluminum and rubber was compared with that of uniform mounts made of aluminum.Experiments were performed to verify the numerical prediction. The results show that the stop band can be tuned by modifying material and geometric parameters of periodic mounts.This also demonstrates the potential of these periodic mounts to stop or confine the propagation of undesirable disturbance from vehicle engine.

Key words: periodic structure, filtering characteristics, vibration control, insulator