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윤정서 ( Jung-seo Yoon ) 숙명여자대학교 디자인연구소 2023 숙명디자인학 연구 Vol.35 No.0
근대화와 도시화의 과정 속에서 밤섬은 외부의 힘에 의해 변화되어 왔으며 그 과정에서 자연의 힘에 의해 수복하는 모습을 보이기도 했다. 나는 자연스러움과 부자연스러움의 관계가 무엇인가, 자연스러움과 부자연스러움의 차이는 무엇인가, 자연스러움과 부자연스러움의 기준은 무엇인가 숙고해보며 ‘자연스러움과 부자연스러움’이라는 주제를 설정한채로 이 주제를 통해 밤섬의 수복과정을 바라보며 밤섬 파빌리온을 설계하고 밤섬 파빌리온에 그대로 숙고과정을 담아내었다. In the process of modernization and urbanization, Bamseom Island has been changed by external forces, and in the process, it has also been restored by natural forces. With the theme of natural and unnatural, I designed the Bamseom Pavilion while looking at the restoration process of Bamseom Island, reflecting on the relationship between natural and unnatural, the difference between natural and unnatural, and the criteria for natural and unnaturalness.
Sled를 이용한 한국형 고속전철 승객안전도 평가 기술개발
윤영한(Younghan Youn),구정서(Jungsuh Koo) 한국철도학회 2001 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper uses a dynamic sled test approach to understand the effects of impact speed on the risk of occupant in KHST. The sled impact tests simulate a predefined accident scenarios. This study shows the effect of relative velocity between occupant and struck vehicle while occupant is impacted to a front seat"s seatback. Although, base on the current accident scenarios, KHST is performed well enough to protect average adult male occupants. However, Results from the tests indicate small size occupant or higher impact speed may cause sever neck and femur injuries.
컴퓨터 시뮬레이션기법을 이용한 고속전철 승객안전도 해석 및 평가
윤영한(Younghan Youn),구정서(Jungsuh Koo),이재완(Jaewan Lee) 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-
The computer simulation techniques were adopted to evaluate effects of seating positions of passenger under the various accident scenarios. The baseline of compuer simulation model was tunned by the sled impact tests which conducted under the upright and standard seating positions. This study shows the effect of relative velocity between occupant and struck vehicle while occupant is impacted to a front seat"s seatback. Although, base on the current accident scenarios, KHST is performed well enough to protect average adult male occupants. However, Results from the tests indicate small size occupant or higher impact speed may cause sever neck and femur injuries.
컴퓨터 시뮬레이션 기법을 이용한 고속전철 승객안전도 해석 및 평가
윤영한,구정서,이재완 한국철도학회 2003 한국철도학회논문집 Vol.6 No.1
The computer simulation techniques were adopted to evaluate the effects of seating positions of passenger under various accident scenarios. The baseline of computer simulation model was tuned by the sled impact tests which conducted under the upright and standard seating positions. This study shows the effect of relative velocity between occupant and struck vehicle while occupant is impacted to a front seat´s seatback. Although, base on the current accident scenarios, The KHST is performed well enough to protect average adult male occupants. However, Results from the tests indicate small size occupant or higher impact speed may cause sever neck and femur injuries.
CRASHWORTHY DESIGN AND EVALUATION ON THE FRONT-END STRUCTURE OF KOREAN HIGH SPEED TRAIN
구정서,윤영한 한국자동차공학회 2004 International journal of automotive technology Vol.5 No.3
An intensive study was conducted for the crashworthy structural design of the recently developed KoreanHigh Speed Train (KHST). Two main design concepts were set up to protect both crews and passengers from seriousinjury in heavy collision accidents, and to reduce damage to the train itself in light collision accidents. A collision againsta movable 15-ton rigid obstacle at 110 kph was selected from train accident investigations as the accident scenario for theheavy collisions. A train-to-train collision at the relative velocity of 16 kph was used for the light collision. Thecrashworthiness behaviors of KHST were numerically evaluated using FEM. Analysis results using 1-D collisiondynamics model of the full rake consist and 3-D shell element model of the front end structure showed good crashworthyresponses in a viewpoint of structural design. Occupant analyses and sled tests demonstrated that KHST performed wellenough to protect occupants under the considered accident scenarios. Finally our numerical approaches were evaluated bya real scale collision test.
1차원 동역학 모델을 이용한 한국형 고속전철의 충돌 안전도 평가
구정서,조현직,김동성,윤영한 한국철도학회 2001 한국철도학회논문집 Vol.4 No.3
One of the best methods to evaluate crashworthiness of a full rake trainset is to analyse 1-dimensional dynamic model using dampers, nonlinear springs and bars, and masses. In this study, the crashworthiness of KHST has been evaluated by analysing a nonlinear dynamic model made up of springs/bars-dampers-masses. The numerical results show that the KHST can absorb more kinetic energy at lower impact forces and lower accelerations in case of heavy collisions, if compared with KTX. Also, the KHST can be protected from any damage in its car-body and electric components except the energy absorbing tube in case of light collisions, like train-to-train accidents at speed under 8 kph. On the other hand, the KTX may be more damaged in the light collisions because there is no energy absorbing tube.
1차원 동역학 모델을 이용한 한국형 고속전철의 충돌 안전도 평가
구정서(Jeong-Seo Koo),조현직(Hyun-Jik Cho),김동성(Dong-Sung Kim),윤영한(Young-Han Youn) 한국철도학회 2001 철도저널 Vol.4 No.3
One of the best methods to evaluate crashworthiness of a full rake trainset is to analyse 1-dimensional dynamic model using dampers, nonlinear springs and bars, and masses. In this study, the crashworthiness of KHST has been evaluated by analysing a nonlinear dynamic model made up of springs/ bars-dampers-masses. The numerical results show that the KHST can absorb more kinetic energy at lower impact forces and lower accelerations in case of heavy collisions, if compared with KTX. Also, the KHST can be protected from any damage in its car-body and electric components except the energy absorbing tube in case of light collisions, like train-to-train accidents at speed under 8 kph. On the other hand, the KTX may be more damaged in the light collisions because there is no energy absorbing tube.
구정서(J. S. Koo),박성하(S. H. Park),윤영한(Y. H. Youn),김동성(D. S. Kim) 한국철도학회 1999 한국철도학회 학술발표대회논문집 Vol.- No.-
In this study, the crashworthy design of the full rake of KHST (Korean High Speed Train under development in G7-project) is numerically evaluated using 2-dimensional crash dynamics. The results of KHST are compared with those of TGV-K (TGV for Seoul-Pusan line). KHST shows better crashworthy behaviors after impact. Specifically, impact forces, decelerations and overriding displacements are much reduced in KHST. All the design guidelines under SNCF accident scenario (collision against a movable rigid mass of 15 ton at 110 ㎞/h) are satisfied in KHST.