Robust design approach to the minimization of functional performance variations of products and systems  

作　　者：J.ZHANG H.DU D.XUE P.GU 

机构地区：[1]Intelligent Manufacturing Key Laboratory of Ministry of Education,Shantou University,Shantou 515063 China [2]Department of Mechanical and Manufacturing Engineering,University of Calgary,Calgary T2N1N4,Canada [3]School of Mechanical Engineering,Tianjin University,Tianjin 300072,China

出　　处：《Frontiers of Mechanical Engineering》2021年第2期379-392,共14页机械工程前沿（英文版）

基　　金：The authors wish to thank the National Key R&D Program of China(Grant No.2018YFB1701701);the National Natural Science Foundation of China(Grant No.51505269);the Sailing Talent Program of Guangdong Province,China for providing financial support for this research.

摘　　要：Functional performance variations of products and systems are often used to measure the qualities of products and systems considering the changes in the design parameter values caused by uncertainties.A robust design approach has been developed in this research to minimize the functional performance variations considering the design parameter uncertainties by identifying the boundaries of the functional performance variations through optimization.In this work,a mathematical model is developed to describe the relationships among functional performance,design configurations and parameters,and design parameter uncertainties.A multi-level optimization model is established to identify:(1)The optimal design configuration,(2)the optimal values of design parameters,and(3)the boundaries of functional performance variations.Sensitivity analysis considering the impact of parameter uncertainties on functional performance variation boundaries has also been conducted.A case study on the design of a truss system has been conducted.Case study results show that the sensitivities of functional performance variation boundaries to the design parameter uncertainties can be reduced significantly using the new robust design approach.

关 键 词：product design robust design design optimization UNCERTAINTIES 

分 类 号：TH122[机械工程—机械设计及理论]