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동승석 최고 충돌성능 달성을 위한 액티브 벤트 에어백 기술 개발
유재행,신효섭,김태인,배한일,이성우,Yoo, Jaehaeng,Shin, Hyoseup,Kim, Taein,Bae, Hanil,Lee, Seungwoo 한국자동차안전학회 2013 자동차안전학회지 Vol.5 No.1
For the robust passenger NCAP 5star and the stable neck injury performance, a new concept of passenger airbag has been required strongly. Especially, the deployment stability and the vent hole control technology of the passenger airbag should be improved. According to these requirements, the deployment stability technique has been studied and the 'Active Vent' technology has been developed. As a result, these technologies have led to achieve the robust NCAP rating and are applied to the production vehicles.
저속 충돌시 수리비 저감을 위한 차체 프런트 구조 최적화
강우종(Woojong Kang),배한일(Hanil Bae) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_2
The impact energy in low speed crash must be absorbed locally in the front structure with no damage in the rear part of an auto-body. The repair cost in a low speed crash could be reduced by establishing energy absorbing element such as a crash box. In this paper, the front structure of an auto-body is designed to reduce the repair cost in a low speed crash accident The strength and energy absorbing ability of a crash box is also related with 5mph bumper performance. A compromise solution is acquired from an optimization process with DOE and RSM to satisfy the 5mph bumper and 15kph crash performances.<br/> <br/> <br/>
김세호(Seho Kim),배한일(Hanil Bae) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
The crash analysis has been often carried out ignoring the change of the mechanical properties of the members<br/> originated from the manufacturing process. The stamped member contains prehistoric effects such as work<br/> hardening, and the distribution of the non-uniform thickness and strain induced from the stamping process. In this<br/> paper, the stamping effect of the front side member is considered in the crash analysis for the 40 mph OFFCAP test<br/> in order to investigate the influence of the forming effect on the deformation mechanism of a full car. Simulation<br/> results show that the deformation mode as well as the amount of the absorbed energy is greatly changed. It is fully<br/> demonstrate that consideration of stamping effects is necessary for a proper evaluation of the load carrying capacity<br/> and the deformation of the auto-body.
최성철(Sungchul Choi),배한일(Hanil Bae),한성준(Sungjun Han),이주영(Juyoung Lee) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Continuous further development in all safety areas is indispensable to meet the steadily increasing requirements of consumer protections and regulations in various countries. Presently, lots of numerical simulations as well as real world tests are still on going in automotive companies, however, only experienced experts can deal with simulations. Therefore, the MADYMO Auto-Running System (MARS) is developed to enhance these situations. Using this system, MADYMO CAE background is unnecessary for restraint system engineers/designers and test engineers to obtain the optimal design parameters without sacrificing cost and time.
북미법규(25mph Unbelted) 및 상품성 만족을 위한 승객안전 연구
조성수(Seongsoo Cho),한성준(Sungjun Han),배한일(Hanil Bae) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
An analysis of occupant safety is performed and the optimum conditions of restraint system. which simultaneously meet the requirements of the FMVSS 208(25mph unbelted) and the NCAP test conditions, is proposed. A 25mph unbelted test conditions(50th%ile male and 5th%toile female dummy) are analyzed and find out the optimum conditions of the Knee Bolster(K/B) and airbag. Then the NCAP test condition is analyzed using the optimum conditions of the K/B and airbag previously found and find out the optimum condition of seat belt.
저속 충돌 수리비저감을 위한 에너지 흡수기구 설계에 관한 연구
김상범(Heon Young. Kim),김헌영(Sang Bum Kim),김세호(Seho Kim),배한일(Hanil Bae.) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Insurance company payout huge sum of money relating the repair of damaged vehicle. The RCAR(The Research Committee for Automobile Repairs) assist vehicle manufacturer to enhance low speed crash performance. The repair cost in a low speed crash can be reduced by establishing energy absorbing element such as a crash box. Using crash box, The impact energy in low speed crash must be absorbed locally in the front structure without damages in the rear part of an auto-body. It is often possible to take advantage of various joining method in front end and this make the whole repair operation in this area less time consuming.<br/> In this study, to improve repairability in case of low speed collision, we developed optimized front end module by introducing separable crash box And, to minimize the crush distance of crash box, foam filled-crash box was studied by finite element model<br/>
정면충돌 센싱 성능 향상을 위한 전방 센서의 위치 최적화
김범진(Bumjin Kim),이승근(Seunggeun Lee),홍석호(Seokho Hong),위성돈(Sungdon Wee),배한일(Hanil Bae) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The purpose of the current paper is to optimize the FIS position in order to prevent airbag malfunctioning from inaccuracy of air bag sensibility during frontal and offset vehicle collision under various velocities. In this paper, the frontal and offset crash finite element models are firstly constructed as regards the 12mile frontal versus 25mile offset crash, and 18mile frontal crash versus 40mile offset crash. Then, the parameter design scheme of Taguchi method is used to obtain the robust optimal position of the FIS. As a result, the robust optimal position of the FIS which is installed in the FEM carrier upper member is suggested considering the noise effect such as the vehicle weight, strength and stiffness of front side member and bumper back beam. Moreover, it shows that discrimination of crash pulse as regards the various frontal crash modes above mentioned is enhanced dramatically for the air bag deployment. Current paper will contribute in various technologies - minimize cost and the number of real test for airbag sensing, reducing the target period for regulation and product development, and prevention for Product Liability - providing solution for uncertainty of airbag activation under various collision possibilities.