摘要
针对随机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 .考虑结构的物理参数、几何尺寸、外荷载幅值以及闭环系统控制力同时具有随机性时 ,利用振型迭加法导出了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、几何尺寸、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 ,并获得了若干有意义的结论 .
The problems of dynamic response analysis of closed loop control system based on probability for the random intelligent truss structures are studied. Considering the randomness of physical parameters of structural materials, geometric dimensions of active bars and passive bars, applied loads and control forces simultaneously, the computational expressions of numerical characteristics of structural dynamic response of closed loop control system are derived by means of the mode superposition method. The influences of the randomness on structural dynamic response are investigated through examples and some significant conclusions are obtained.
出处
《固体力学学报》
CAS
CSCD
北大核心
2003年第4期434-440,共7页
Chinese Journal of Solid Mechanics
基金
陕西省自然基金 (D70 10 418)
西安电子科技大学青年科研基金资助
