柔性基础上设备振动隔离问题的研究

A Study on Vibration Isolation for the Machine on Flexible Foundations

从多支承系统出发，运用功率流和四端参数方法，研究了安装在柔性基础上设备振动的隔离问题。建立了机器－隔振器－柔性基础的一般模型，分析了系统振动传递特性，在计入柔性基础波动效应情况下，推导了系统功率流表达式，并分析了基础柔性、波动效应等对隔振效果的影响。

The problem of vibration isolation for the multi supporting machine installed on flexible foundations was studied by power flow and four end parameters methods.The general model of machine,isolator and flexible foundations was founded,and the transmission characteristic of the vibration system is analyzed.The expressions of power flow of the system with wave propagation effect being concerned was also presented.Finally,the effect of foundation flexibility and wave propagation on isolation was analyzed in detail.