会议专题

Reliability-based Sensitivity Design of Mechanical Components withArbitrary Distribution Parameters

In the reliability-based analysis of mechanical joints,as each factor has different effect onthe failure of mechanical joints,the effects of design parameters on reliability of the mechanicaljoints are determined with the reliability-based sensitivity analysis method.Furthermore,thereliability of mechanical joints can be effectively designed.As a matter of fact,if a change of acertain random parameter has great effect on the reliability of mechanical joints,the parameter mustbe strictly controlled in the course of design and manufacture to ensure reliability.Whereas if achange of a certain random parameter has unobvious effect on the reliability of mechanical joints,itcan be treated as a deterministic value to reduce the complexity of the analysis.In this paper,basedon the reliability design theory,the sensitivity analysis method and the fourth moment technique,the reliability sensitivity of the mechanical joints with arbitrary distribution parameters isextensively discussed and a numerical method for reliability sensitivity design is presented.Thevariation regularities of reliability sensitivity are obtained and the effects of design parameters onreliability of the mechanical joints are studied.The method presented in this paper providesreasonable and necessary reliability basis for the design,manufacture,use and evaluation of themechanical joints.

mechanical components reliability-based design reliability-based sensitivity non-normal random parameters fourth moment technique

Z.Yang Y.M.Zhang L.S.Zhu

School of Mechanical Engineering & Automation,Northeastern University,110004,P.R.China

国际会议

2008 International Conference on Advances in Product Development and Reliability(2008年产品开发与可靠性进展国际会议)

成都

英文

2008-08-04(万方平台首次上网日期,不代表论文的发表时间)