한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제31권9호
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  • Pages.783-790
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  • 2014
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
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철도차량 차륜의 기계적 특성 및 잔류응력평가

Evaluation of Mechanical Characteristic and Residual Stress for Railway Wheel

  • 서정원 (한국철도기술연구원 시험인증안전센터) ;
  • 권석진 (한국철도기술연구원 고속철도연구본부) ;
  • 이동형 (한국철도기술연구원 고속철도연구본부) ;
  • 전홍규 (한국철도기술연구원 시험인증안전센터) ;
  • 박찬경 (한국철도기술연구원 시험인증안전센터)
  • Seo, Jung Won (Testing and Certification Center, Korea Railroad Research Institute) ;
  • Kwon, Suk Jin (High-Speed Railway Systems Research Center, Korea Railroad Research Institute) ;
  • Lee, Dong Hyeong (High-Speed Railway Systems Research Center, Korea Railroad Research Institute) ;
  • Jun, Hong Kyu (Testing and Certification Center, Korea Railroad Research Institute) ;
  • Park, Chan Kyeong (Testing and Certification Center, Korea Railroad Research Institute)
  • 투고 : 2014.07.04
  • 심사 : 2014.08.20
  • 발행 : 2014.09.01
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초록

Railway wheels and axles are the most critical parts of the railway rolling stock. The wheel carry axle loads and guide the vehicles on the track. Therefore, the contact surface of wheel are subjected to wear and fatigue process. The wheel damage can be divided into three types; wear, contact fatigue failure and thermal crack due to braking. Therefore, in the contact surface between the wheel and the rail, the materials are heat treated to have a specific hardness. The manufacturing quality of the wheel have a considerable influence on the formation of tread wear and damage. Also, the residual stress on wheel is formed during the manufacturing process is one of the main sources of the damage. In this paper, the mechanical characteristic and the residual stress according to wheel material have been evaluated by applying finite element analysis and conducting mechanical tests.

키워드

참고문헌

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피인용 문헌

  1. A Study on Safety Evaluation of Wheel Using Roller Rig Tester vol.32, pp.7, 2015, https://doi.org/10.7736/KSPE.2015.32.7.591