Research on wheel bearing life prediction method under Typical load spectrum
DONG Yanfang
YU Wei
QIU Ming
YAN Zibo
ZHOU Wenbo
YE Botao
Abstract：This paper proposes a method for predicting the service life of wheel bearings under multi-stage complex loads,which is difficult to predict accurately in actual service.Firstly,considering the effect of bending moment,the proposed static model of the wheel bearing is constructed,and the Newton-Raphson iterative algorithm combined with the block method is used to solve the internal contact load of the bearing and resolve the variation law of the contact load in each contact area under different working conditions;Secondly,with reference to the mechanical industry standard JB/T 13353-2017,this study develops a typical load spectrum for durability assessment.Based on the modified L-P theory,the bearing life under this typical load spectrum is determined.Furthermore,to account for the effects of load sequence and interaction present in multi-stage loading,a nonlinear fatigue cumulative damage model is introduced.Finally,the differences between the linear and non-linear damage accumulation models are compared,and the accuracy of the prediction results and the rationality of the method are verified through durability tests.
Keywords：wheel bearingtypical load spectrumlife predictionnon-linear damage accumulation model
Publication Date：2026-02-25
Online Publishing Date：2026-03-19(First online date of this platform, not the publication date of the document)
Pages：10( 24-33 )