滚动轴承寿命试验设计及其参数的关联分析  

Design of Rolling Bearing Life Test and Correlation Analysis of Its Parameters

作　　者：王广超 韩清鹏 朱瑞 袁斌霞 黄浩 WANG Guangchao;HAN Qingpeng;ZHU Rui;YUAN Binxia;HUANG Hao(College of Energy and Mechanical Engineering,Shanghai University of Electric Power,Shanghai 201306,China)

机构地区：[1]上海电力大学能源与机械工程学院,上海201306

出　　处：《轴承》2024年第12期1-6,共6页Bearing

基　　金：国家自然科学基金资助项目(12172210)。

摘　　要：寿命试验是滚动轴承研发的重要环节,具有设计复杂、时间长、费用高的特点。为提高试验设计的便捷性,根据威布尔分布原理并通过MATLAB计算得到轴承寿命试验参数,只需输入相应的试验参数就能获得试验方案,便于试验方案的设计与修改。为缩减试验费用和试验周期,分析了最小试样数、置信度、可靠度、形状参数、试样允许失效数、时间系数等试验参数之间的规律,结果表明:可以在不降低试验可靠度和置信度的情况下,选择适当的试验参数来减少试验所需总资源量,从而选择性地减少试验费用或缩短试验周期,以获得最优的试验方案。Featuring complex design,long time and high cost,the life test is an important part in research and development of rolling bearings.In order to improve the convenience of test design,according to principle of Weibull distribution,the life test parameters for the bearings are calculated by MATLAB.The test scheme can be obtained by inputting corresponding test parameters,which is convenient for design and modification of test scheme.In order to reduce the test cost and shorten the test period,the law among test parameters such as minimum number of samples,confidence,reliability,shape parameter,allowable failure number of samples and time coefficient is analyzed.The results show that the appropriate test parameters can be selected to reduce the total amount of resources required for the test without compromising reliability and confidence of the test,thereby selectively reducing test cost or shortening test period to obtain the optimal test scheme.

关 键 词：滚动轴承 寿命试验 关联分析 威布尔分布 定时截尾试验 

分 类 号：TH133.3[机械工程—机械制造及自动化] O313.7[理学—一般力学与力学基础]