Earticle

초록

영어

Rolling contact fatigue(RCF) is a major cause of failure that appears in components of rolling contacts. In the recent years, the fatigue propagation and failure have been an important issue in respect of the safe operation and to reduce the noise and vibration of the rolling contact components. The water-contaminated lubrication is known to be one of the significant factors that reduces the lifetime of the rolling contact components. Thus, in this study, the effect of water-contaminated lubrication environment on the rolling contact fatigue was investigated. Bearing life testing was performed in two different lubrication conditions (i.e. normal lubrication environment and water-contaminated lubrication environment). The effect of the debirs on the rolling contact fatigue could be eliminated by establishing the debris filter system. Microscopic features of the rolling contact surfaces were examined using energy dispersive spectrometry and non-contact 3D measurement system. In the case of the water-contaminated lubrication, the increase of surface roughness values up to 17.6% was observed. The oxidation state and pattern of the rolling contact surfaces were very different depending on the lubrication environment. It was also found that the bearing rating life, L10 , was decreased significantly in the watercontaminated lubrication condition. The amount of reduction was about 49.7%.

목차

ABSTRACT
 1. 서론
 2. 실험
  2.1 RCF 실험
  2.2 트랙 표면 관찰 및 분석방법
  2.3 트랙 성분 분석방법
 3. 결과 및 토론
  3.1 트랙 표면 분석 결과
  3.2 트랙 성분 분석 결과
  3.3 RCF 수명평가 결과
 4. 결론
 References

키워드

저자

• 심충기 [ Chung-Ki Sim | Department of Mechanical Engineering, Graduater School, Seoul National University of Science and Technology ]
• 김홍석 [ Hong Seok Kim | Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology ]
• 신기훈 [ Ki-Hoon Shin | Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology ]
• 정성균 [ Seong Kyun Cheong | Member, Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620