基于单循环功能度量法的结构可靠寿命优化设计  

Structural Reliable Life Optimization Design Based on Single-Loop Performance Measure Approach

作　　者：刘勤[1,2] 孙志礼[1] 涂宏茂[1,2] 姬广振[2] 

机构地区：[1]东北大学机械工程与自动化学院,沈阳110819 [2]中国兵器科学研究院,北京100089

出　　处：《兵器装备工程学报》2016年第6期6-9,34,共5页Journal of Ordnance Equipment Engineering

基　　金：总装备部预先研究项目(51319010402);国防技术基础项目(Z092012B001)

摘　　要：针对常规的寿命优化设计,未考虑疲劳、磨损影响系数等因素的分散性,引入单循环方法,提出了一种以可靠寿命为目标、约束的结构优化设计方法;将可靠寿命迭代求解与优化计算迭代同步进行,显著提高计算效率;通过对某型车辆传动箱的结构可靠寿命优化设计结果表明该方法具有较好的效果和计算效率。The traditional structure life optimization doesn＇t consider randomness of factors for fatigue,wear,etc. A structure optimization approach,which set reliabe life as object and took constraint structure optimization as the design method, was proposed by using single-loop method. The new sequential approximate programming realizes concurrent convergence of both design optimization and reliabe life calculation,and the present algorithm is more efficient. Finally,the optimization design of transmission case in vehicle was employed. The result demonstrates the good effectiveness of the presented method.

关 键 词：优化设计 可靠寿命 单循环 功能度量法 

分 类 号：TH122[机械工程—机械设计及理论]