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차체경량화 알루미늄 샌드위치구조용 250°F 에폭시 접착필름 열적 특성 평가
오경원(Oh Kyung-Won),이상진(Lee Sang-Jin),정종철(Jeong Jong-Cheol),조세현(Cho Sea-Hyun),목재균(Mok Jai-Kyun) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
This study was experimental test of edgewise compression properties for aluminum(type-50XX) sandwich panel with thermal environment and surface treatment using adhesive film. There was decreasing 10%-peel strength after thermal environment. Through compressive buckling mode know to seen of properties of adhesive, sheet and core strength. First case of Chromate to aluminum sheet, know low shear strength of adhesive through buckling mode but case of Beomite to aluminum sheet, know than thin sheet and core low strength through buckling mode.
신소재 복합재 철도차량 차체 제작기술 및 구조강도 평가
정종철(Jeong Jong-Cheol),이상진(Lee Sang-Jin),조세현(Cho Sea-Hyun),서승일(Seo Sung-Il),김천곤(Kim Chun-Gon) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
This research presents the manufacturing process and the structural strength assessment for the hybrid composite carbody. In this study, the manufacturing process for carbody with length of 23m was explained. The composite carbody was fabricated as one body using autoclave with length of 30m and 5m diameter. The structural behavior of the carbody under the 3-point supporting and the natural frequency were evaluated as well. In addition, the test results were compared with the numerical one. From the tests, the structural strength of the hybrid composite carbody was assessed.
도심의 교통시스템에 적합한 복합소재의 연료전지 차체설계기술 개발
오경원(Oh Kyung-Won),이상진(Lee Sang-Jin),정종철(Jeong Jong-Cheol),박미영(Park Mi-Yung),조세현(Cho Sea-Hyun),목재균(Mok Jai-Kyun) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
In order to prevent the global warming, Korea has had a ratification to the Kyoto Protocol which is specified the air pollution level should be lower the condition of the year 1990 until the year 2012, in hence the traffic system produced mostly the air pollution has been faced to big change. According to the reinforcement of higher level for environmental condition, alternative way to the conventional traffic system is required, so that is fuel cell technology of commercialized R&D program used by hydrogen fuel, and further for the optimized high energy efficiency it has been considered the advanced development of traffic system used the conventional railroad system. But it is moreover expected the huge amount of initial investment, so at the current, next new traffic system is needed. This study is for the improvement of urban traffic system in domestic which should be seriously changed for environmental friendly through the reduction of air pollution by fuel gases of vehicle and human convenience to be easily approached. In hence it is proposed the development of superior high efficiency-"Fuel-cell Rubber-tired Tram" system manufactured by the composite car-body.