数字模拟技术在非线性随机响应分析中的应用

The Application of Digital Simulation to the Analysis of Random Vibration

本文将数字模拟方法与NASTRAN软件的非线性瞬态响应求解模块结合起来 ,用于求解在随机激励下非线性系统的随机响应问题。同时用该方法对一个典型结构 (悬臂矩型板 )进行了计算与实验 。

In this paper,a digital simulation of random process and the nonlinear transient response analysis module of MSC/NASTRAN are combined to acquire the random response of nonlinear system under random excitation.This method is applied to the analysis of a typical test piece (a rectangular cantilever plate).The calculation and random vibration experiment are finished in this paper.The results are satisfactory.