Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Contact Analysis between Rubber Seal, a Spherical Wear Particle and Steel Surface

시일과 스틸면 사이의 구형 마멸입자에 의한 접촉해석

  • Park, Tae-Jo (School of Mechanical & Aerospace Engineering, ReCAPT, Gyeongsang National University) ;
  • Yoo, Jae-Chan (Doosan Mottrol Co., Ltd.) ;
  • Jo, Hyeon-Dong (Graduate School, Dept. of Mechanical & Aerospace Engineering, Gyeongsang National University)
  • 박태조 (경상대학교 기계항공공학부.항공기부품기술연구소) ;
  • 유재찬 (두산모트롤(주)) ;
  • 조현동 (경상대학교 대학원 기계항공공학부)
  • Published : 2008.12.31
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Abstract

In many dynamic seals such as lip seal and compression packings, it is well known that wear occur at the surface of heat treated steel shaft as results of the intervened wear particle. It is widely understood that the dominant wear mechanism related in sealing surfaces is abrasive wear. However, little analytical and experimental studies about this problems have been done until now. In this paper, a contact analysis is carried out using MARC to investigate the wear mechanism in contact seal applications considering elastomeric seal, a elastic perfect-plastic micro-spherical particle and steel surface. Deformed seal shapes, contact and von-Mises stress distributions for various particle sizes and interference are showed. The maximum von-Mises stress within steel shaft was exceeded its yield strength and plastic deformation occurred at steel surface. Therefore, the sealing surface can be also worn by sub-surface fatigue due to wear particles together with well known abrasion. The numerical methods and models used in this paper can be applied in design of dynamic sealing systems, and further intensive studies are required.

Keywords

References

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