시일과 코팅된 스틸면 사이의 구형입자에 의한 접촉해석
Contact Analysis Between Rubber Seal, a Spherical Particle and Coated Steel Surface
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초록
Seals are very useful machine components in protection of leakage of lubricant or working fluid, and incoming of debris from outside. Various elastomer are widely used as sealing materials and the shaft surfaces are generally coated with high hardness material after heat treatment. It is generally known that the foreign debris and wear particles get stuck into sealing surface, the steel shaft surface can be damaged and worn by mainly abrasive wear. In this paper, using MARC, contact analysis are conducted to show the hard coated steel shaft surface can be fatigue failed by very small elastic particle intervened between seal and steel surface. Variations of contact and von-Mises stress distributions and contact half-widths with interference and coating thickness are presented. The maximum von-Mises stress occurs always in the coating layer or between coated layer/substrate interface. Therefore the coated sealing surface can be fatigued and then failed by very small particles. The results can be used in design of sealing surface and further studies are required.
Abstract
Seals are very useful machine components in protection of leakage of lubricant or working fluid, and incoming of debris from outside. Various elastomer are widely used as sealing materials and the shaft surfaces are generally coated with high hardness material after heat treatment. It is generally known that the foreign debris and wear particles get stuck into sealing surface, the steel shaft surface can be damaged and worn by mainly abrasive wear. In this paper, using MARC, contact analysis are conducted to show the hard coated steel shaft surface can be fatigue failed by very small elastic particle intervened between seal and steel surface. Variations of contact and von-Mises stress distributions and contact half-widths with interference and coating thickness are presented. The maximum von-Mises stress occurs always in the coating layer or between coated layer/substrate interface. Therefore the coated sealing surface can be fatigued and then failed by very small particles. The results can be used in design of sealing surface and further studies are required.
참고문헌 (8)
- Zhang, X. C, "Hertzian Contact Response of Singlelayer, Functionally Graded and Sandwich Coatings", Materials & Design, 28, pp.47~54 (2007)
- Tilbrook, M. T, "Microstructural Effects on Indentation Failure Mechanisms in TiN Coatings : Finite Element Simulations", Acta Materialia, 55, pp.2489~2501 (2007)
- Sun, Y, "Finite Element Analysis of Plastic Deformation of Various TiN Coating", Substrate Systems under Normal Contact with Rigid Sphere, 1995, pp.271, 122~131
- Coveney, V. A, "Behaviour of Model Abrasive Particles between a Sliding Elastomer Surface and a Steel Counterface", Wear, 240, pp.72~79 (2000)
- Park, T, "Contact Stress Analysis of a Spherical Wear Particle between Seal and Steel Surface, Friction, Wear and Wear Protection", pp.744~749 (2008)
- 박태조, "시일과 스틸면 사이의 구형 마멸입자에 의한 접촉해석", 한국윤활학회지, 24(6), pp.297~301 (2008), 한국윤활학회
- MSC, "MSC. MARC", MENTAT 2007r1 User's Guide, A-E, 2007
- Williams, J. A, "Engineering Tribology" (1994), Oxford Univ. Press