基于灰色动态模型的结构随机振动建模与预测  

Modeling and Prediction for Structure Random Vibration Based on the Grey Dynamic System

作　　者：任瑞[1] 周海[2] 师智全[2] 杨义胜[2] 林东晖[2] 陈良民[2] 

机构地区：[1]电子科技大学光电信息学院,成都610054 [2]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《噪声与振动控制》2007年第4期31-33,共3页Noise and Vibration Control

基　　金：基金项目名称:国家重点实验室基金9140C6803020605资助

摘　　要：稳定性问题是关系高功率固体激光装置运行效率、可靠性和打靶精度的一项关键问题。由于激励源的多样性及结构的复杂性,只能得到结构的响应信号。通过对实测结构响应信号运用Matlab语言进行时域分析,建立了结构振动灰色系统模型,证明该模型能够对结构在随机激励下的振动趋势进行预测,并且可以为光束漂移控制机构提供预测信号。The executive efficiency,reliability and pointing precision of the high power laser system depend on its structure stability.But as varieties of driving sources and complexities of the structure,only response signal can be detected through micro-vibration test,so it can't act as a source of predictive signal.Grey system-based dynamic detecting model is established using MATLAB to investigate the detected signal.Obtained results show that this model can predict the vibration of structure in random driving sources and can provide predictive signal for the beam-direction control system.

关 键 词：振动与波 稳定性 灰色系统模型 建模 预测 

分 类 号：O324[理学—一般力学与力学基础] TP331[理学—力学]