Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
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A study on the braking characteristics of a hydraulic buffer stop

유압식 버퍼스톱의 제동 특성에 관한 연구

  • 최정흠 (서울대학교 정밀기계설계공동연구소) ;
  • 박제승 (서울대학교 기계항공공학부) ;
  • 홍석호 (서울대학교 기계항공공학부) ;
  • 한동철 (서울대학교 기계항공공학부)
  • Published : 2003.10.01
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Abstract

The hydraulic buffer stop placed on the end of the railway brakes the train could not reduce the velocity sufficiently because of the braking system troubles or driver's mistakes. The hydraulic buffer stop is composed of 2 operating parts; hydraulic buffers and rail clamps. Hydraulic buffers brake trains non-destructively in low speed, otherwise rail clamps begin to work in higher speed. In this paper, The braking process of the hydraulic buffer stop is investigated by numerical methods. The hydraulic buffer is numerically analyzed and designed to absorb the kinematic energy of the train below 3.2km/h speed. The hydraulic buffer stop crushed by the train with 5km/h speed is analyzed by FEM package-PAM CRASH in order to obtain the stress profile in rail clamps and buffer stop frame.

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