基于固定方差展开的提升机主轴装置可靠性优化设计  

Reliability Optimization Design of the Hoist Main-Shaft Device Based on the Anchored ANOVA Expansion

作　　者：任冯斌 曹爽 卢昊[1,2] REN Feng-bin;CAO Shuang;LU Hao(College of Mechanical and Electrical Engineering,China University of Mining and Technology,Jiangsu Xuzhou 221116,China;Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment,China University of Mining and Technology,Jiangsu Xuzhou 221116,China)

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116 [2]中国矿业大学江苏省矿山机电装备高校重点实验室,江苏徐州221116

出　　处：《机械设计与制造》2021年第2期88-90,共3页Machinery Design & Manufacture

基　　金：国家重点研发计划专项资助(2016YFC0600905&2017YFF0210604);江苏省高校优势学科建设工程资助项目(PAPD)。

摘　　要：针对概率信息不完备条件下提升机主轴装置的可靠性优化设计问题,提出了一种基于固定方差展开的提升机主轴装置可靠性优化设计方法,首先,通过将提升机主轴装置强度失效的可靠性功能函数进行方差展开,获得了可靠性功能函数的前三阶矩;其次,采用基于矩的鞍点逼近方法,计算得到了主轴装置的失效概率;最后,结合优化设计方法,建立了以可靠度为约束的可靠性优化设计模型。数值算例表明,这里方法可有效开展提升机主轴装置的可靠性分析及优化设计。Aiming at the reliability optimization design of hoist main-shaft device under the condition of incomplete probability information,a reliability optimization method for the hoist main-shaft device based on anchored ANOVA expansion is proposed.Firstly,by using anchored ANOVA expansion method,the limit state function of failure mode was expanded and the first three moments of the limit state function were obtained.Then,according to the moment-based saddlepoint approximation method,the failure probability of the main-shaft devicewas evaluated.Finally,the reliability optimal model was then established by taking reliability index as constraint.The proposed method is validated to be effective to analyze the reliability and reliability-based optimization with the main-shaft device example.

关 键 词：固定方差 可靠性 鞍点逼近 可靠性优化 提升机主轴装置 

分 类 号：TH16[机械工程—机械制造及自动化]