基于失效机理的引信微结构可靠性分析方法  

Fuze Micro-structure Reliability Analysis Based on Failure Mechanism

作　　者：涂宏茂[1,2] 娄文忠[3] 王辅辅[3] 刘芳怡[3] 

机构地区：[1]中国兵器科学研究院,北京100089 [2]东北大学机械工程与自动化学院,辽宁沈阳110819 [3]北京理工大学机电学院,北京100081

出　　处：《探测与控制学报》2016年第4期9-14,共6页Journal of Detection & Control

基　　金：国防技术基础项目(Z092014B001)

摘　　要：针对引信微结构设计分析中仍缺乏有效的可靠性评估方法的问题,结合结构可靠度计算原理,给出基于失效机理的引信微结构可靠性分析方法。该方法以微结构失效模式和失效机理分析为基础,建立表征微结构失效的数学模型,并以此为基础,进行微结构可靠性模型建立,以及可靠度和灵敏度的量化分析。同时,针对可靠度分析程序对CAE软件的调用需求,提出了通用的可靠性分析程序对CAE软件的集成模式,并以ANSYS为例给出了相应的可靠性分析流程。最后,以MEMS安全系统用微弹簧的可靠性分析为例,证明该方法在量化评估微结构可靠性水平方面的可行性和实用性。In order to quantitatively evaluate the reliability of the fuze micro-structure in design stage, a relia-bility analysis method based on the structural reliability calculation principles and the failure mechanisms was proposed, in this paper. Based on this model, reliability model was obtained and used for further reliability and sensitivity calculations. To facilitate the use of CAE software in the reliability program, which gave the general CAE integration mode for structural reliability analysis. The detail procedure of the structural relia-bility analysis based on ANSYS was depicted. A reliability analysis example of micro-spring in fuze safety mechanism demonstrated the feasibility and practicality of the method for fuze micro-structure reliability prob-lems.

关 键 词：引信可靠性 结构可靠度 失效机理分析 失效机理建模 可靠性灵敏度 

分 类 号：TB114.3[理学—概率论与数理统计]