Reliability assessment for rolling bearings using accelerated life testing under corrosion stress conditions

被引：0

作者：

Zhang, Shiping ^{[1
]}

Wang, Zhiming ^{[2
]}

Yang, Jianguo ^{[3
]}

机构：

[1] Engineering Training Center, Huaihai Institute of Technology, Lianyungang

[2] School of Mechanical Engineering, Huaihai Institute of Technology, Lianyungang

[3] School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai

来源：

Jisuanji Jicheng Zhizao Xitong/Computer Integrated Manufacturing Systems, CIMS | 2015年 / 21卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Accelerated life testing; Corrosion stress; Inverse power law; Reliability assessment; Rolling bearing;

D O I：

10.13196/j.cims.2015.08.019

中图分类号：

学科分类号：

摘要：

To reduce the reliability assessment testing time for bearings, the reliability of rolling bearings in corrosion conditions was analyzed with inverse power law-Weibull accelerated life testing method. The point estimation of model parameters were presented by weighted least square method and maximum likelihood estimation. The interval estimation for model parameters and bearings reliability indices included Mean Time To Failure (MTTF), reliability and reliability life were all given by using Fisher information matrix method, which could solve the problems that only had point estimation but no interval estimation in common evaluation and make evaluation result more comprehensive. Based on AIC and BIC information criteria, the reliability assessment results of bearings in corrosion conditions were obtained with best assessment model. The calculating results showed that the proposed method had a higher assessment accuracy, and mean life of bearings shortened by 8.75% and reliability reduced by 16.83% as the corrosion stress increased one times. ©, 2015, CIMS. All right reserved.

引用

页码：2132 / 2137

页数：5

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