具有随机路径的振动传递路径系统的随机响应分析  

Random response analysis of vibration transfer path systems with uncertain paths

作　　者：张义民[1] 贺向东[1] 李鹤[1] 闻邦椿[1] 

机构地区：[1]东北大学机械工程与自动化学院,沈阳110004

出　　处：《计算力学学报》2008年第4期424-427,共4页Chinese Journal of Computational Mechanics

基　　金：国家高技术研究发展计划(2007AA04Z442);国家自然科学基金(50535010);辽宁省创新团队资助项目

摘　　要：基于一般概率摄动有限元法,解决了具有随机路径的振动传递路径系统的响应分析问题。应用Krone-cker代数,矩阵微分理论,向量值和矩阵值函数的二阶矩技术,矩阵摄动理论和概率统计方法,提出了振动传递路径系统的随机响应分析方法,在考虑工程中的不确定因素以后,在时域内清晰地描述了振动传递路径的随机响应。Based on the generalized probabilistie bration transfer path systems with uncertain pa per ths turbation finite element method, the responses of viis solved. The effective approach for response analysis of vibration transfer paths are presented using the Kronecker algebra, the matrix calculus, the generalized second moment method, the matrix perturbation theory, the probability and statistics. The random responses of multiple and/or multi-dimensional paths are described correctly and expressed in time range as uncertain factors are considered.

关 键 词：振动 传递 路径 随机参数 响应 

分 类 号：O484[理学—固体物理] TB123[理学—物理]