KSTLE International Journal

Korean Tribology Society (한국트라이볼로지학회)
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Analysis of sliding/Impacting Wear in T7be to Convex Spring Contact and Relevant Contact Problem

  • Kim, Hyung-Kyu (Korea Atomic Energy Research Institute 150 Dukjin-dong) ;
  • Lee, Young-Ho (Korea Atomic Energy Research Institute 150 Dukjin-dong) ;
  • Heo, Sung-Pil (Korea Atomic Energy Research Institute 150 Dukjin-dong) ;
  • Jung, Youn-Ho (Korea Atomic Energy Research Institute 150 Dukjin-dong) ;
  • Ha, Jae-Wook (School of Mechanical Engineering, Kyungpook National University) ;
  • Kim, Seock-Sam (School of Mechanical Engineering, Kyungpook National University) ;
  • Jeon, Kyeong-Lak (KEPCO Nuclear Fuel Co., LTD. 150 Dukjin-dong, Yusong-ku Taejon)
  • Published : 2002.06.01
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Abstract

Wear on the tube-to-spring contact is investigated experimentally, The vibration of the tube causes the wear while the springs support it As for the supporting conditions, the contacting normal farce of 5 N,0 N and the gap of 0.1 mm are applied. The gap condition is for considering the influence of simultaneous impacting and sliding on wear. The wear volume and depth decreases in the order of the 5 N,0 N and the gap conditions. This is explained from the contact geometry of the spring, which is convex of smooth contour, The contact shear force is regarded smaller in the case of the gap existence compared with the other conditions. The wear mechanism is considered from SEM observation of the worn surface. The variation of the normal contact traction is analysed using the finite element analysis to estimate the slip displacement range on the contact with consulting the fretting map.

Keywords

References

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