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황창숙(Changsook Hwang),백경윤(kyungyun Baek),김선규(Sunkyu kim),양인영(Inyoung Yang) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11
Automobiles should be designed to meet the requirements and standards for the protections of passengers in a car accident. One of safety factors is an absorbing capacity in collision. Many automobile have been designed based on the criterion of the absorbing capacity. Therefore a controller has been developed in order to control and increase the absorbing capacity of impact energy in automobile collision.<br/> Aluminum alloy(AI) square tubes are tested by axial loading. The energy absorbing capacity of AI tubes have been estimated in cases of with-controller and without-controller, respectively based on height, thickness of an controller.
김선규,황창숙,이현,양인영 朝鮮大學校 機械技術硏究所 2001 機械技術硏究 Vol.4 No.2
자동차는 사고로부터 승객을 보호하기 위한 적당한 요건과 기준으로 설계되어야한다. 승객의 안전을 지킬 수 있는 요소 중 하나는 충돌시 발생하는 흡수능력의 제어이며, 일반적으로 많은 차량들은 흡수능력의 규범을 기초로 하여 설계된다. 따라서 본 연구에서는 충돌시 자동차의 충격에너지 흡수를 제어하고 증가시키기 위하여 제어기를 개발하였다. 축 하중을 받는 알루미늄 합금 튜브(원형, 사각)에 관하여 정적암궤실험을 행하였으며, 제어기의 유·무, 특히 제어기의 높이와 두께에 따른 알루미늄 튜브의 에너지 흡수능력을 평가하였다. Automobiles should be designed to meet the requirements and standards for the protections of passengers in a car accident. One of safety factors is an absorbing capacity in collision. Many vehicles have been designed based on the criterion of the absorbing capacity. In this paper a controller has been developed in order to control and increase the absorbing capacity of impact energy in automobile collision. Aluminum alloy(Al) tubes(circular and square) are tested by axial loading. The energy absorbing capacity of Al tubes have been estimated in cases of with-controller and without-controller, respectively based on height, thickness of an controller.
FEM에 의한 차체구조용 단일모자형 단면부재의 축압궤특성에 관한 연구
차천석,황창숙,백경윤,김기형,양인영 朝鮮大學校 機械技術硏究所 2002 機械技術硏究 Vol.5 No.1
차체전면부 사이드부재는 점용접에 의해서 이루어진 모자형 단면형상을 갖는 강도부재로써, 차량의 전면충돌에 있어서 중요한 역할을 한다. 전면충돌에 있어서 차량의 전면부에서 충분한 에너지를 흡수한다면, 승차자에게 가해지는 충격에너지를 경감시킬 수 있다. 따라서, 이러한 강도부재는 충분한 강성을 가져야 하지만, 적절한 압궤 또한 이루어져야 한다. 본 연구에서는 단일모자형 단면부재에 대하여 플랜지부 점용접 간격을 변화시켜 준정적(0.017m/sec) 및 충격합궤(7.19m.sec, 1034J)하에서 압궤특성을 해석하고자 유한요소 프로그램인 LS-DYNA3D을 이용하여 준정적 및 충격압궤 시뮬레이션을 행하였다. 시뮬레이션은 압궤실험 결과와 비교함으로서 시뮬레이션의 타당성을 학인하였다. The hat shaped section members of vehicles compose the base frame which plays an important role in a front-end collision. It consists of the hat shaped section members with spot welds. In front-end collision, the impact energy for the passengers will be decreased as the front parts of vehicles has sufficiently absorbed energy. And then, this structures have not to be very stiff but collapse progressively to absorb the kinetic energy as expected. In this study. LS-DYNA3D has been used for analyzing collapse characteristics on hat shaped section members with respect to spot weld pitches under quasi-static(0.017m/sec) and impact load(7.19m/sec. 1034J). By comparing the results from simulation and the experimental results. the utilization fo simulation has been certified.
에너지 흡수 제어에 의한 Al 박육부재의 축 압궤 특성
양용준(Yongjun Yang),황창숙(Changsook Hwang),김선규(Sunkyu Kim),심재기(Jeaki Sim),양인영(Inyoung Yang) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Automobiles must be designed to control characteristics of energy absorption for the protecting of passengers in a car accident. Study on collapse characteristics of structural member is conducted in parallel with other studies on effective energy absorption capacity of structural members with diverse cross-sectional shapes and various materials. This study concerns the crashworthiness of the widely used vehicle structural members, thin-walled tubes, which are excellent on the point of the energy absorption capacity. The absorbed energy, mean collapse load and deformation mode were analyzed for side member which absorbs most of the collision energy. The Energy Absorption Capacity of AI thin-walled tubes have been estimated on cases of with-controller and without-controller, respectively based on height, thickness of an controller. The absorbed energy and mean collapse load of thin-walled tubes was increased by 15-20% in using the controller and energy absorbing capability of the specimen was slightly changed by change of the high controller's height.
[안전부문] 박육부재의 에너지흡수 제어에 관한 실험적 연구
김선규(Sunkyu Kim),황창숙(Changsook Hwang),이현(Hyun Lee),임광희(Kwanghee Im),양인영(Inyoung Yang) 한국자동차공학회 2001 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2001 No.11_2
Automobiles should be designed to meet the requirements and standards for the protections of passengers in a car accident. One of safety factors is an absorbing capacity in collision. Many vehicles have been designed based on the criterion of the absorbing capacity. Therefore a controller has been developed in order to control and increase the absorbing capacity of impact energy in automobile collision.<br/> Aluminum alloy(Al) tubes(circular and square) are tested by axial loading. The energy absorbing capacity of AI tubes have been estimated in cases of with-controller and without-controller, respectively based on height, thickness of an controller.<br/>