Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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A Study on the Contact Behavior of Stress-Displacement Characteristics for an Inclined Rail-Wheel Contact Mode

레일-휠의 접촉면 경사도에 따른 응력-변위량의 거동특성에 관한 연구

  • 김청균 (홍익대학교 기계시스템디자인공학과)
  • Published : 2004.09.01
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Abstract

Using the finite element method, rail-wheel contact model has been analyzed for mechanical loads due to passengers and payload of the train. This paper presents an investigation on how tapered wheel and inclined rail surfaces affect the contact stress and displacement of rail-wheel contacting surface under mechanical loads. For a numerical analysis, the tapered faces of the wheel are considered as 2.5% and 5.5%. And two models of the tilted rail are also considered as 40：1 and 20：1 at the bottom of the rail. The computed results based on the contact stress and displacement FE analysis indicate that the tilting ratio of the rail, 20：1 with a tapered face of the wheel, 2.5% may be more stable compared to that of 40：1 tilting model and 5.5% tapered wheel face.

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References

  1. Dearden, J., 'The Wear of Steel Rails : A Rl:view of the Factors Involved', Proc. Inst. Civil Eng., London, May 1954
  2. Dearden, J., 'The Wear of Steel Rails and Tyres in Service', Wear, Vo1.3, pp.43-59, 1960 https://doi.org/10.1016/0043-1648(60)90174-5
  3. Wise S., 'Railway Wheelsets - A Critical Review', Proceeding of the Institute of Mechanical Engineering, 201(D4), 257, 1987 https://doi.org/10.1243/PIME_PROC_1987_201_185_02
  4. AAR S-660-83, Proceeding for the Analytical Evaluation of Locomotive and Freight Car Wheel Designs, Manual of Standards and Recommended Practices, Mechanical Division, Association of American Railroads, USA, 1983
  5. Jergeus J., 'WheellRail Contact Problem Modelled with Three Dimensional Finite Elements in a Supercomputer', Chalmers Univ. of Tech., Report Tl25, 1991
  6. Report of Railway Engineering Research at Chalmers University in Gothenburg, Proceedings of the Institute of Mechanical Engineering, 206, 145, 1992
  7. Chung Kyun Kim, etc., 'Tribological Approach on the Stress Distribution of Wheel-Rail Contact', Proceeding of the KSTLE, Vo1.25, pp.210-217, 1997
  8. Kasy Aiyar S., 'Some Aspects of the Problem of Rail-Wheel Intersection', Research Design and Standards Organization, Technical Report No.345, India, 1976
  9. MARC Analysis, Ver. 7.0, 1999