定值器稳健设计参数的辨识方法  

Research on Parameter Identification of Robust Design for Value-setter

作　　者：宋娜娜[1] 张付英[1] 姜向敏[1] 陈建垒 SONG Nana;ZHANG Fuying;JIANG Xiangmin;CHEN Jianlei(Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry&Food Machinery and Equipment,College of Mechanical Engineering,Tianjin University of Science&Technology,Tianjin 300222,China)

机构地区：[1]天津市轻工与食品工程机械装备集成设计与在线监控重点实验室,天津科技大学机械工程学院,天津300222

出　　处：《天津科技大学学报》2018年第2期58-63,共6页Journal of Tianjin University of Science & Technology

基　　金：天津市自然科学基金重点资助项目(17YCZDJC38800)

摘　　要：针对定值器结构复杂、设计参数多的特点,提出了集成FMEA/FTA/FEA的定值器稳健设计参数辨识方法.根据定值器的工作原理和功能结构,基于故障模式和效果分析(FMEA)获得定值器的主要失效模式;基于故障树分析(FTA)确定提高定值器工作可靠性、降低失效概率的关键零部件;利用ABAQUS有限元分析(FEA)软件模拟和分析各关键零部件的性能与设计变量间的线性关系,从而辨识出定值器的稳健设计变量.该设计方法对复杂产品的稳健设计参数辨识具有一定的指导意义.Aimed at the complex structure and multiple design parameters of value-setter,a robust design parameter identification method for value-setter based on FMEA/FTA/FEA was proposed.According to the working principle and function structure of the value-setter,the main failure modes of the value-setter can be obtained based on the failure mode and effect analysis(FMEA),and the key components can be got based on fault tree analysis(FTA),so as to improve the reliability and reduce the failure probability of the value-setter.The relationships between the performance of the key components and their design variables were simulated and analyzed with ABAQUS finite element analysis(FEA)software,which can identify the robust design variables of the value-setter.This design method has certain significance for the robust design parameter identification of complex products.

关 键 词：定值器 FMEA FTA 有限元分析 参数辨识 

分 类 号：TH137[机械工程—机械制造及自动化]