运动机构可靠性仿真试验系统体系结构研究  

Research on the Architecture of Simulative Experiment System for Mechanism Motion Reliability Analysis

作　　者：王慧[1] 喻天翔[1] 雷鸣敏[1] 宋笔锋[1] 

机构地区：[1]西北工业大学航空学院,西安710072

出　　处：《机械工程学报》2011年第22期191-198,共8页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目(51105308)

摘　　要：针对工程实际复杂运动机构系统成本高、研制周期长、试验量少等特点,提出基于机液协同仿真模型的运动机构可靠性仿真分析方法。从工程实际运动机构系统的运动规律和系统性能出发,给出系统的主要失效模式并定量确定主要失效模式的失效判据,通过整合运动机构系统仿真模型可靠性分析的数据来源,建立并不断修正运动机构系统可靠性仿真模型,同时综合集成三维辅助建模软件、多体分析软件、有限元软件和控制系统建模软件等商用软件并结合经典可靠性分析方法,建立一个协同的运动机构可靠性仿真试验平台集成系统,从而对运动机构系统进行可靠性仿真试验分析与评估,为今后可靠性设计提供大量的有用信息。通过起落架落震可靠性仿真试验研究,表明该系统能够实现工程实际复杂运动机构可靠性仿真试验。The complex engineering mechanisms are usually of high cost,long term schedules,and small number of experimental specimens.In order to deal with the problem,a hybrid simulative method for mechanism motion reliability analysis is proposed based on the mechanic-liquid coupling model.Considering the rule of movement and performance of the engineering mechanism system,the principal failure modes are defined and the corresponding failure criterions are determined quantitatively.The simulative model is built and updated by integration of data source for mechanism motion reliability analysis.Using the integration of commercial software,including 3D CAD software,multi-body analysis software,finite element analysis software and control system modeling software,and combining with the classic reliability analysis method,an integrated platform of simulative experiment system for mechanism motion reliability analysis is developed.The simulative experiment analysis and evaluation of the mechanism motion reliability can be performed,and further provide plenty of useful information of the future reliability design.Finally,the feasibility of the system is verified by the reliability analysis of a simulative landing gear drop test.

关 键 词：可靠性 仿真试验 体系结构 机液协同仿真模型 蒙特卡罗 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] V215[自动化与计算机技术—计算机科学与技术]