基于动力学响应失效模式的悬臂转子可靠性分析  

Dynamical Response Failure Mode Based Reliability Analysis of a Cantilever Rotor

作　　者：张鹏飞[1] 荆建平[1] 孟光[1] 王玉花[2] 张丽新[2] 

机构地区：[1]上海交通大学机械系统与振动国家重点实验室,上海200240 [2]上海卫星工程研究所,上海200241

出　　处：《噪声与振动控制》2009年第5期58-61,共4页Noise and Vibration Control

基　　金：国家自然科学基金(10572087;10772114)资助

摘　　要：基于悬臂转子的动力学响应失效模式,通过对影响悬臂转子安全性的外载荷、几何特征、材料特性等敏感参数的分析,分别建立了悬臂转子静态响应和动态响应的极限状态方程。对每个极限状态方程,使用泰勒级数对非线性极限状态方程在设计点处进行线性化,运用一次二阶矩理论,得到相应的可靠度指标。对比考虑和忽略惯性力影响下的可靠度指标和可靠度结果,分析惯性力对可靠性分析结果的影响,建立针对该类悬臂转子的有效的可靠性分析方法。Based on the failure mode of dynamic response of the cantilever rotor, the sensitivity factors which affect structure reliability, such as load, size of structure, properties of materials, are analyzed. The utmost equations of the cantilever rotor in both static and dynamic states are built. Each equation is linearized at the average point by Taylor Expansion scheme. The reliability of structure is calculated by employing the theory of the primary second moment. The reliability results of considering and ignoring the inertial force respectively are compared mutually and analyzed. Then, an effective reliability analysis method for cantilever rotor is established.

关 键 词：振动与波 悬臂转子 动力学响应 可靠性 极限状态方程 

分 类 号：TH113.1[机械工程—机械设计及理论]