基于AIS&MC数值仿真的飞行器螺栓连接件可靠性评估  

Reliability Numerieal Simulation of Bolt Assemblies Strength based on AIS and MC Method

作　　者：陈顺祥[1] 沈志辉[1] 

机构地区：[1]第二炮兵工程学院,陕西西安710025

出　　处：《中国西部科技》2008年第33期9-10,29,共3页Science and Technology of West China

摘　　要：本文分析建立了常用于飞行器不同舱段壳体连接中的螺栓连接组件在轴压、剪切和弯矩载荷下的随机可靠度模型和模糊可靠度模型,针对这两种模型分别研究了自适应重要抽样法(AIS)和直接蒙特卡罗(MC)数值仿真步骤,最后结合算例计算了某螺栓组连接强度可靠度。This paper discusses models of random and fuzzy reliability of bolt assemblies strength which are often used in aircraft connection structure,and explains the application of adaptive importance sampling method and Monte Carlo method in this two reliability models,finally gives an example and works out it＇ s random reliability degree and fuzzy reliability degree,the results shows that the blot assemblies strength is reliable.

关 键 词：重要抽样法 随机可靠度 模糊可靠度 螺栓连接 

分 类 号：V430[航空宇航科学与技术—航空宇航推进理论与工程] V275.3