随机多输入试验模态分析方法

RANDOM MULTIPLE INPUT EXPERIMENTAL MODEL ANALYSIS METHODS

本文提出了多输入随机振动试验模态分析的两个新方法;组合频率响应函数法(CFRF)和多重频率响应函数法(MFRF)。通过某一导弹的模态试验在微型机上实现了全部的分析计算,获得了满意的结果和有益的结论。

This paper presents two new methods for multiple-input experimental model analysis using random exicitation. The methods are respectively defined as the Combined Frequency Response Function (CFRF) method and the Multiple Frequency Response Function (MFRF) method. A common microcomputer is used to perform all the computation. The analytical results of a missile modal testing are given. Satisfactory results and useful conclusions have been obtained.