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RISS 인기검색어
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- 저자 : 태성식(Tae Sung-Sik) (검색결과 2 건)
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성덕룡(Deok-Yong Sung),태성식(Sung-Sik Tae),박광화(Kwang-Hwa Park),강윤석(Sun-Yong Kong),박용걸(Yong-Gul Park) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
장대레일 교체주기는 자갈궤도 레일두부 표면요철과 레일 휨피로의 상관관계 분석을 통해 산정되었다. 본 연구에서는 실물 레일 휨 피로시험을 통한 레일의 S-N선도, 국내 도시철도(서울메트로) 콘크리트궤도에서 발생하는 레일 휨응력 예측식, Haibach's rule을 통해 콘크리트궤도 장대레일의 휨 피로수명을 평가하였다. 여기서, 레일용접방법별 S-N선도와 레일표면요철, 열차운행속도가 고려되었다. 또한, S-N선도 파괴확률 1%, 0.1%, 0.01%를 고려한 휨 피로수명을 비교하였다. 따라서 본 연구에서는 콘크리트궤도 장대레일의 휨 피로수명을 제안하였다. It is suggested that the service life of the continuous welded rail(CWR) is estimated by the relationship between the rail surface irregularity according to the accumulated passing tonnage and bending fatigue of welded part in CWR. In this study, based on the results of bending fatigue tests of rail and results of measuring tests in situ of rail bending stress, this study estimated the bending fatigue life of welded rail in concrete track, adopting a Haibach's rule. The bending fatigue life of CWR considered the rail surface irregularity, train speed and the S-N curve by types of rail welding. In addition, this study estimated it for the fracture probability 1%, 0.1%, 0.01%. Therefore, this study proposed bending fatigue life of CWR in concrete track.
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임형준(Lim hyoung-Jun),태성식(Tae Sung-Sik),강윤석(Kang Yun-Seok),박용걸(Park Yong-Gul) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
It is estimated that the running of locally-developed next generation High Speed Trains with maximum speed of 400㎞/h will help to deteriorate track components. It was presented that the rail defect coding system in UIC 712R includes the definitions of damage types of rail, maintenance procedures, and etc to detect and maintain. It is necessary to make a track maintenance manual determining maintenance periods using the standardization of damage types of track components such as: sleeper, fastener, elastic pad. In this study, the damage types of high speed track components are investigated by referring domestic and foreign literatures. And then the damage types of rail given in UIC 712R is reclassified more particularly and classified damage types of track components using internal high speed railway. In conclusion, this study suggests that track maintenance will be efficiency through the standardization of the scientific detect and analysis technique according to the damage types of track components on internal high speed railway.
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