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레일-휠의 접촉면 경사도에 따른 응력-변위량의 거동특성에 관한 연구A Study on the Contact Behavior of Stress-Displacement Characteristics for an Inclined Rail-Wheel Contact Mode
- Other Titles
- A Study on the Contact Behavior of Stress-Displacement Characteristics for an Inclined Rail-Wheel Contact Mode
- Authors
- 김청균
- Issue Date
- 2004
- Publisher
- 한국철도학회
- Keywords
- 접촉응력; 변위량; 레일; 휠; Contact Stress; Displacement; Rail; Wheel
- Citation
- 한국철도학회논문집, v.7, no.3, pp.186 - 192
- Journal Title
- 한국철도학회논문집
- Volume
- 7
- Number
- 3
- Start Page
- 186
- End Page
- 192
- ISSN
- 1738-6225
- 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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