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이재완(Jaewan Lee),윤경한(Kyonghan Yoon) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In Korea, pedestrian accidents account for about 40% of traffic accident mortality. Head injuries are 60% of the cause of death in pedestrian accidents. Therefore, the Pedestrian head protection performance test protocol using adult and child head impactors has been proposed in K-NCAP. The testing method was created based on the Ministry of Construction and Transportation research program and global technical regulation of pedestrian safety by UNECE WP29. The impact velocity of the head impactor was set at 40㎞/h. The evaluation method was created based on the Euro-NCAP method. In order to evaluate the difference in the vehicle safety performance, a sliding scale was adopted to convert the injury values ranging from HIC 1000 to HIC 1700 to the score.
배중호(Joongho Bae),윤경한(Kyonghan Yoon),용기중(Geejoong Yong),이건복(Gunbok Lee) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
An automobile has become essential in our daily life. Rapid motorization has adverse effects in safety and envirionment domestically as well as internationally. Thus world-wide regulatory communities endeavor to improve safety, to protect environment, and to save energy by internationally harmonizing vehicle technical regulations. Automotive markets have become global without borders after WTO was established. Vehicle technical regulations emerge as technical barriers to trade(TBT) while customs barrier gave away. From the TBTs point of view international harmonization becomes increasingly important. In this paper the activities of United National Economic Commission for Europe Working Party 29 (UN/ECE/WP29, World Forum for Harmonization of Vehicle Regulations) and trends of development of vehicle technical regulations under 1958 Agreement and 1998 Agreement have been studied.
국산자동차의 보행자 보호 머리모형 충격시험에 관한 고찰
김시우(Siwoo Kim),윤용원(Yongwon Yoon),이재완(Jaewan Lee),윤경한(Kyonghan Yoon),황덕수(Duksoo Hwang) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
Seven domestic vehicles are tested by the pedestrian safety test procedures of global technical regulation(GTR) to confirm of pedestrian protection. Test system used in the pedestrian headform impact test is developed by korean technology in National transportation technology development (MOCT) - "Pedestrian friendly Vehicle development". The specification of tested headform is 3.5㎏(child) and 4.5㎏(Adult) in GTR. Also impact angles in child and adult test area used the procedures in GTR. Impact velocity is 35㎞/h. To conform for the same influence in testing vehicles, the same test points are chosen with same WAD.
김필구(Pilku Kim),윤용원(Yongwon Yoon),윤경한(Kyonghan Yoon),윤종호(Jongho Yoon),용부중(Boojoong Yong) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
Pedestrian accidents account for approximately 36% of total traffic accident fatality in Korea(2008). Head injuries account for 65% of the cause of death in pedestrian accidents. Leg injuries account for 44% of the cause of hurt in pedestrian accidents. A variety of research efforts have been performed to protect pedestrians in the world. As the result, The evaluation of the pedestrians protection for the vehicle has been started through EuroNCAP since 1996 in Europ, and J-NCAP started in Japan since 2003. In case of Korea , K-NCAP started for headform test in the first place since 2007 and legform test was added from 2008. In this paper, the performance of pedestrian protection for recent vehicles was evaluated by KNCAP. As the result, in spite of variety effort for pedestrian safety, so far performance of recent vehicle is not thorough going enough. For the development of pedestrian friendly vehicle, it is necessary that enough space should be secured more than 70mm between hood and engine room. Additionally, it is necessary to introduce more aggressive technology as active hood lifting system and outer air bag for pedestrian protection.
벨트 하중 상해 예측을 위한 내장기관이 포함된 고령자 흉곽 모델 개발
한인석(Inseok Han),유한규(Hankyu Ryu),김영은(geun Kim),윤경한(Kyonghan Yoon),채수원(Soowon Chae) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
Thoracic injury from restraint loading is the principle causative factor of death, which was shown to be particularly significant for older drivers. The purpose of this study is to characterize thoracic response to belt loading of older drivers by using a thorax finite element (FE) model. The adult FE thorax model and aged model were developed to carry out this study. The cortical thickness of the rib was differently assigned to each 9 sections(anterior, lateral, posterior, inner, outer, upper and lower). The internal organ model contains the lung, heart, trachea, aorta, vena cava and midriff. Self contact and general contact were assigned to each organ. The adult FE model and each rib were validated by comparing model response with available experimental cadaver test data. The quantified patterns of age-related shape and material changes were applied to the adult model(age 38) to develop the aged model(age 65). The simulations showed that the aged model more affected by belt force than adult model. Stress of the thorax was increased, because of larger rib angle due to aging effect. Furthermore, failure strain was reduced due to the material properties change.
전방차량충돌경고장치(FVCWS) 평가시스템에 관한 연구
박요한(Yohan Park),박형원(Hyoungwon Park),심소정(Sojung Shim),윤경한(Kyonghan Yoon),문영준(Youngjun Moon) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper presents the developed system to evaluate Forward Vehicle Collision Warning Systems. The main function of a FVCWS is to warn the driver when the subject vehicle encounters the situation that a forward vehicle becomes a potential hazard. Because warning distance algorithms under same dangerous conditions vary according to automobile manufactures and component suppliers, these systems in the situation are needed to warn the driver at a warning distance that is considered of human factors. Therefore, there is required a system to evaluate the pertinence of warning timing in an identical hazard situation. The evaluation system consists of sensors to measure speed and acceleration of subject vehicle and target vehicle, controllers to follow the velocity profile that should meet the same unsafe conditions and wireless telecommunication equipments for receiving or transmitting the measured data. And, the system has a software to monitoring the test data in real-time and, after field test, to analyze value such as time gap. Consequently, the system is adequate to evaluate warning distance of FVCWS type systems.
보행자보호 세계기술기준(GTR)의 자동차 형상분류 제시(안)에 대한 연구
김시우(Siwoo Kim),이재완(Jaewan Lee),박형원(Hyungwon Park),윤경한(Kyonghan Yoon) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This report shows the background, classification method and test procedures for vehicle-shape classification in the Global Technical Regulation(GTR) drafts related to pedestrian safety found in UNECE/WP29IGRSP. In case of pedestrian-car collision accidents, pedestrian's injuries and movements are somewhat different depending on the shape of the front of a vehicle. The GTR classified it into three categories such as Category 1,2 & 3. The 29 kind of domestic vehicles in Korea are measured and classified with the same procedures.