基于四端参数分析的隔振器传递阻抗测量方法

Measurement Method of Transfer Impedance for Isolator Based on Four-Eng Parameter Analysis

基于四端参数网络分析方法,推导了隔振器传递阻抗的计算公式,利用公式中易于测量的固定状态和自由状态的输入阻抗,得到隔振器的传递阻抗数据。根据该方法原理,测量了两种隔振器的实际传递阻抗,由测量结果可知,该方法具有简单、方便、理论依据明确的优点。

A transfer impedance calculating formula for isolator is developed based on for-end parameter analysis method.In this way,the transfer mechanical impedance of isolator can be calculated indirectly using tow point impedances which can be measured directly under free and restricted states.According to this method,the transfer impedances for two kinds of isolators are obtained.The results show that the method is simple,credible,and reasonable.