摘要
针对随机参数压电智能桁架结构研究了基于概率的结构闭环控制系统动力响应分析模型与方法。利用振型迭加法导出了结构的物理参数、外荷载幅值以及闭环系统控制力同时具有随机性时 ,结构动力响应随机变量的数字特征计算表达式。通过算例考察了智能结构物理参数、外荷载幅值以及控制力的随机性对结构闭环控制系统动力响应的影响 。
The problems of dynamic response analysis of closed loop control system based on reliability for the intelligent truss structures with random parameters were studied in this paper. Considering the randomness of physical parameters of structural material and applied loads and control forces, the computational expressions of numerical characteristics of closed loop control system of structural dynamic response were derived by means of the mode summation method. The influences of the randomness of physical parameters of structural material and the amplitude of loads and the control forces on structural dynamic response were studied through engineering examples and some useful conclusions are obtained.
出处
《机械科学与技术》
CSCD
北大核心
2002年第6期909-912,共4页
Mechanical Science and Technology for Aerospace Engineering
