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강승구(Seung-Gu Kang),신광복(Kwang-Bok Shin),임재문(Jae-Moon Im),박정준(Jung-Joon Park),전승기(Seung-Gie Jeon) 한국생산제조학회 2017 한국생산제조학회지 Vol.26 No.4
This study evaluated the design and structural integrity of a three-axle bogie frame in a railway freight car through a numerical analysis and an experimental evaluation. A three-axle bogie frame, which supports the weight of the car body and load, is required to transport heavier cargo because two-axle vehicles have structural limitations. Therefore, this study performed a structural analysis and static load tests to evaluate the design and structural integrity of a three-axle bogie frame. The results obtained from the numerical analysis were compared to those of the experiments. For the bogie frame used in the experiments, a failure evaluation was performed using non-destructive methods. The numerical analysis and experimental evaluation were satisfactory for the structural integrity evaluation.
한환수(Han Hwan-Su),전승기(Jeon Seung-Gie),박태영(Park Tae-Young),김봉상(Kim Bong-Sang),박덕신(Park Duck-Shin),권순박(Kwon Soon-Bark) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
An amenity requirement of the passenger using public traffic is rising continuously, and also The Ministry of Environment established "Indoor air quality management guidelines in public facilities(Dec. 2006)". To satisfy such requirement, the photoplasma device to decrease VOCs(Volatile Organic Compounds) and suspended bacillus is applied to the underframe mounted HVAC(Heating, Ventilating and Air-Conditioning) system for train. Air purifying method of photoplasma device is optical and chemical reaction that UV-light(wavelength less than 280nm) react with catalyst material(TiO2). To analyze the efficiency of photoplasma in this study, we measured the requirement time for toluene to decease down to 0.3ppm after contaminating the passenger cabin for train to toluene 1ppm.