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실사고 데이터를 이용한 EES에 따른 인체상해도 경향성 분석
이승상(Seungsang Lee),송영준(Youngjun Song),윤영한(Younghan Youn),이재완(Jaewan Lee),김시우(Siwoo Kim),이강현(Kanghyun Lee),이희영(Heeyoung Lee) 한국자동차공학회 2014 한국자동차공학회 부문종합 학술대회 Vol.2014 No.5
Currently frontal crash safety evaluation is conducted by crashing a vehicle against a rigid barrier in Korea. It evaluate crash performance of a vehicle in a barrier test in terms of vehicle stiffness and strength. But this method is basic test. Probably, This test isn’t matched in Real World Crash Collision about occupant injury. So The availability of in-depth accident data is prerequisite for each efficient traffic safety management system. In this study, As using photo modeler program, It finds out relationship between occupant injury based on AIS and Estimated Energy Equivalent Speed in the real world in-depth accident data and compares crashing a vehicle test against a rigid barrier by using Madymo to Estimated Energy Equivalent Speed in the Real World in-depth accident data. Using Real World in-depth accident data is essential part of improving vehicle safety and reduction of traffic fatality in Korea.
뒷좌석 승객 보호를 위한 안전띠의 기하학적 특성에 대한 연구
윤영한,박지양,이승상,김민용,Youn, Younghan,Park, Jiyang,Lee, Seungsang,Kim, Minyoung 한국자동차안전학회 2015 자동차안전학회지 Vol.7 No.1
The protection of frontal seat passengers in both driver and front seated occupant has been more focused from the auto industries as well as regulatory bodies more than 40 years. Recently, their interests have been extended to rear seat occupants especially children and female occupants. However, the current available safety devices for the rear seat occupants are seat belt only. According to the previous researchers, the injury level of the rear seat passengers tend to be higher than the injury level of the frontal seat passengers. In this study, the optimal location of seat belts anchorages to enhance rear passengers crashworthiness are studied. FEM models are designed in accordance with regulation of KMVSS102, UN R44, UN R16, and UN R14. and three point belts are fitted on the HybridIII 5th percentile dummy and HybridIII 50th percentile dummy. The combined injury value used HIC15, Nij, Chest deflection, Femur force are used to evaluate rear seat belt anchorage optimal locations.
김영삼(Youngsam Kim),이승상(Seungsang Lee),송진철(Jinchul Song),임방섭(Bangseop LIM) 한국자동차공학회 2016 한국자동차공학회 부문종합 학술대회 Vol.2016 No.5
In recent days, Styling of automotive vehicle tends to be sharpened more and more. Specially, for clear and sharp styling of vehicle, The role of character line in vehicle design becomes more important. If character line has sharp edge and small radius, global appearance of vehicle looks like sharp and clear. But small character radius causes a kind of surface defect which is called slip line (kind of skid mark of initial contact line moves). In order to have small and clear character line for outer stamping panel, new stamping process method is required to satisfy vehicle appearance quality. In this study, The Variable Thickness Offset method between upper and lower stamping die has been applied. Usually the clearance between upper and lower stamping die has constant distance of blank thickness except some special case. To avoid and reduce slip line surface defect, the smaller clearance than blank thickness has been applied in the area that the skid line moves. The smaller clearance than blank thickness means giving higher contact pressure to defect area compared to other surface area. As a result, Higher contact pressure makes the slip line defect can be dispersed to adjacent surface. The Variable Thickness Offset method can be considered that it is effective method to improve and reduce slip line surface defect giving by enough contact pressure to blank material. Variable Thickness Offset consists of smaller thickness offset area and transition area.
드라이룸 트윈로터제습기와 싱글로터제습기의 에너지사용량비교
홍석균(Seokgyun Hong),박승태(Seungtae Park),금종수(Jongsoo Kum),박종일(Jongil Park),박승상(Seungsang Park),이수양(Sooyang Lee) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6
Twin rotor dehumidifier is the energy-effective system that reuses the reactivation exhaust air, 80℃ 10g/kg', of the second desiccant rotor as the reactivation heat source of the first desiccant rotor. Comparing with a single rotor dehumidifier, it can save the energy up to 32% on design. Therefore, this twin rotor dehumidifier is the best equipment for the environment and energy saving.
뒷좌석 승객 충돌안전성 향상을 위한 안전띠 부착장치 최적위치 연구
손완윤(Wanyun Son),윤영한(Younghan Youn),심희섭(Heesub Shim),이승상(Seungsang Lee),박지양(Jiyang Park),김혜선(Hyusun Kim),송영준(Youngjun Song) 한국자동차공학회 2013 한국자동차공학회 학술대회 및 전시회 Vol.2013 No.11
To enhance passengers safety in the event of a car accident, the researches of the vehicle crashworthiness have been constantly conducted. The protection of frontal seat passengers in both driver and front seated occupant has been more focused from the auto industries as well as regulatory bodies more than 40 years. Recently, their interests have been extended to rear seat occupants especially children and female occupants. However, the current available safety devices for the rear seat occupants are seat belt only. According to the previous researchers, the injury level of the rear seat passengers tend to be higher than the injury level of the frontal seat passengers. In this study, the optimal location of seat belts anchorages to enhance rear passengers crashworthiness are studied. FEM models are designed in accordance with regulation of KMVSS 102, ECE R44, ECE R16, and ECE R14. and three point belts are fitted on the HybridIII 5<SUP>th</SUP> percentile dummy and HybridIII 50<SUP>th</SUP> percentile dummy. The combined injury value used HIC15, Nij, Chest deflection, Femur force are used to evaluate the optimal location.
부분부하시 하이칸공조기에 의한 일반건물의 합리적 습도제어
홍경수(Kyoungsu Hong),박성찬(Sungchan Park),이준학(Joonhak Lee),금종수(그림),박진석(Jinseok Park),박승상(Seungsang Park),이수양(Sooyang Lee) 대한설비공학회 2013 대한설비공학회 학술발표대회논문집 Vol.2013 No.6
The mechanical dehumidifying process needs a lot of energy to maintain the constant indoor humidity at the partial load condition. The HyKhan air handling unit applies the hybrid dehumidification system to reuse the condenser waste heat. So, the HyKahn air handling unit can save about 30% of chilled water and 65% of power consumption, comparing with the mechanical dehumidification system.
MDB 변경 적용시 WorldSID 및 75˚ 기둥측면충돌 해석 연구
김광수(Kwangsu Kim),윤영한(Younghan Youn),손완윤(Wanyun Son),심희섭(Heesub Sim),이승상(SeungSang Lee) 한국자동차공학회 2013 한국자동차공학회 지부 학술대회 논문집 Vol.2013 No.5-2
ES-2 Dummy replaced by WorldSID, which is used in the side impact test to confirm the need for comparative evaluation WP29(World Forum for Harmonization of Vehicle Regulations) and by using 75˚ instead of the 90˚ pole side impact test method which is used in the domestic NCAP(New Car Assessment Program) the 90˚ pole side impact test method change is confirmed by the WP29, in the informal groups on this review. In this study, to check the comparison by using the international standards the injury characteristics to be with World SID, and WP29 are currently using the Side Impact Dummy ES-2, R95 MDB and AE-MDB side impact analysis was performed.