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함영삼(Y. S. Haam),서정원(J. W. Seo),오택열(T. Y. Oh) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
The machine structure or parts has been arrive at a fracture, depend on crack by repeated load. Machine designer is estimate of fatigue strength in early stages the design for prevent fatigue fracture, then necessary its load history. This research study is using diesel locomotive in measurement of load history for fatigue design of rolling stock. The relation between velocity and amplitude of load history was found. We confirmed that the increase of velocity make to increase the magnitude of amplitude.
함영삼(Y. S. Haam),허현무(H. M. Hur),오택열(T. Y. Oh) 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-
The research was requested by Meridian Rail Corporation in United States. The Swing Motion Bogie can application by Korea style if synthesize study result of bogie strength evaluation, bogie dynamic characteristics analysis, actual test(maximum speed, derailment coefficient, lateral force, vertical force, vibration acceleration, steady state lateral acceleration) etc..
전후동력 새마을호 철도차량의 탈선가능성에 관한 실험적 연구
함영삼(Y. S. Haam),최성규(S. K. Choi),오택열(T. Y. Oh) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
This experimental study is shows speed-up possibility for the conventional railway vehicle. We appraise derailment coefficient then increase the velocity of the kyungbu line, honam line, changhang line, kyungjeon line.