单锤气动式振动台系统建模方法  

Modeling Method of One-Vibrator Repetitive Shock

作　　者：刘长青[1] 李岳[1] 陶俊勇[1] 王考[1] 

机构地区：[1]国防科技大学机电工程与自动化学院机电工程研究所,湖南长沙410073

出　　处：《计算机仿真》2006年第8期58-59,105,共3页Computer Simulation

摘　　要：目前国际上比较先进的可靠性实验设备是一种气动式振动台,该振动台在国外可靠性强化实验中已得到广泛应用。该文在对该振动台进行相关分析的基础上,首先设计了单锤气动式振动台系统,然后以单锤气动式振动台为对象,针对其振动控制技术展开研究,提出了建立系统数学模型的实验建模方案,采用广义最小二乘法,得到了系统的参数模型。最后通过检验,证明了建模方法的可行性与模型的正确性,为实现单锤气动式振动台的闭环控制奠定了基础。The repetitive shock is one of the most advanced reliability test machines in the world. It has been widely used in many developed countries now. In this paper, an one - vibrator repetitive shock system is set up firstly based on the analysis of the repetitive shock. Then, the project of tests for modeling is put forward aimed at the control of the one - vibrator repetitive shock system. The open loop model of the one - vibrator system is got through the GLS （generalized least - squares method） based on the data of tests. Finally, the feasibility of tests and the validity of the model are proved. The results of this paper will lay a foundation for the closed loop control of the one - vibrator system.

关 键 词：可靠性强化试验 单锤气动式振动台 开环模型 系统辨识 广义最小二乘算法 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]