Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Contact Fatigue Life Prediction of Automotive Wheel Bearing

차량용 휠베어링의 접촉 피로수명 예측에 관한 연구

  • Lee, Sang-Don (Precision and Mechanical Engineering, Pusan National University) ;
  • Moon, Kil-Hwan (Precision and Mechanical Engineering, Pusan National University) ;
  • Cho, Yong-Joo (Department of Mechanical Engineering, Pusan National University)
  • 이상돈 (부산대학교 정밀기계공학과) ;
  • 문길환 (부산대학교 정밀기계공학과) ;
  • 조용주 (부산대학교 기계공학부)
  • Published : 2008.05.01
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Abstract

For most bearings, it is a common requirement to have long durability. Especially wheel bearing fatigue life is the most important in automotive quality. The contact fatigue life analysis of automotive wheel bearing considering real raceway rough surface is presented in this paper. Contact stresses are obtained by contact analysis of a semi-infinite solid based on the use of influence functions; the subsurface stress field is obtained using rectangular patch solutions. Mesoscopic multiaxial fatigue criterion which can yield satisfactory results for non-proportional loading is then applied to predict fatigue damage. Suitable counting method and damage rule were used to calculate the fatigue life of random loading caused by rough surface. The life analysis considering real rough surface of wheel bearing raceway is in good agreement with the experimental results.

Keywords

References

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