http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
황우채,양용준,차천석,정종안,김지훈,임광희,김선규,양인영 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.
The design of car body structural member aimed to develop members with the optimum impact characteristics to ensure a protectedspace for passengers in the case of automobile collisions. Accordingly, these members were fabricated to provide sufficient rigidityand safety to the passenger room structure and to absorb large amounts of energy during collision. CFRP(Carbon Fiber ReinforcedPlastics) of the advanced composite materials as structure materials for vehicles, has a widely application in lightweight structuralmaterials of air planes, ships and automobiles because of high strength and stiffness. In this study, impact collapse characteristicsand collapse modes were quantitatively analyzed according to the changes in section shape(square, single and double-hat shapedsection) and stacking angles([+15°/-15°]4,[+45°/-45°]4, and [90°/0°]4). This analysis was performed to obtain design data that canbe applied in the development of optimum lightweight members for automobiles.
황우채,이길성,양용준,양인영 한국정밀공학회 2011 International Journal of Precision Engineering and Vol. No.
The vehicles design should be more concerned on the aspect of securing safety performance, and it also should consider reducing weight of a car body. CFRP (Carbon Fiber Reinforced Plastics) of the advanced composite materials as structure materials for vehicles, has a widely application in lightweight structural materials of air planes, ships and automobiles because of high strength and stiffness. This study is to investigate the energy absorption characteristics of CFRP hat-shaped section members under the axial impact collapse test. The CFRP and hybrid hat-shaped section members which manufactured from unidirectional prepreg sheets were made of 8ply of these sheets stacked at different angles (±15°, ±45°,±90°, 0°/90° and 90°/0). According to the interface numbers (2, 3, 4, 6 and 7) CFRP hat-shaped section members were made.. The axial impact collapse tests were carried out for each section members. The collapse mode and the energy absorption characteristics of the each member were analyzed.
경량화용 CFRP 단일 모자형 부재와 CFRP 이중 모자형 부재의 계면수 변화에 따른 정적압궤특성
황우채,차천석,양인영 한국안전학회 2012 한국안전학회지 Vol.26 No.6
Currently, the most important purpose in designing automobile is environment-friendly and safety performance aspect. CFRP(Carbon Fiber Reinforced Plastics) of the advanced composite materials as structure materials for vehicles, has a wide application in lightweight structural materials of air planes, ships and automobiles because of high strength and stiffness. In this study, experimental investigations are carried out for CFRP single and double hat shaped section member in order to study the effect of various stacking condition. They were cured by heating to the appropriate curing temperature(130°C) by means of a heater at the vacuum bag of the autoclave. The stacking conditions were selected to investigate the effect of the interface numbers. The CFRP single and double hat shaped section members which manufactured from unidirectional prepreg sheets were made of 8ply. The static collapse tests performed and the collapse mode and energy absorption capability were analyzed according to interface number
황우채,김정호,서현경,양인영 朝鮮大學校 機械技術硏究所 2007 機械技術硏究 Vol.10 No.1
자동차를 설계하는 가장 중요한 목적은 현제 환경 친화적인 면과 안전수행 측면에 초점이 맞춰져있다. 경량화 자동차 생산의 전반적인 움직임에 있다 환경친화적인 면과 경제적 측면 때문에 자동차생산에서 경량화에 초점이 맞춰져 있다. 본 연구에서는 사각 단면의 압궤 특성을 고려하여 모자형 단면 부재의 에너지흡수와 압궤특성을 분석하였다. 축 정적 압궤테 스트가 각각의 시험편에 대해여 행하여졌다 각각의 부재들의 에너지홉수와 압궤 모드가 분석되었다. 시험편은 알루미늄 사각부재,CFRP 사각부재,Hybrid 사각부재,CFRP 모자형 단면 부재와 Hybrid 모자형 단면 부재가 사용 되었다. 경량화 측면에서 각각의 부재들의 에너지흡수와 압궤특성이 비교 분석 되었다. The most important purpose in designing automobile is currently focus on environment-friendly, safety performance aspect. As for the environment-friendly and economical aspect, the Issues are the overall movements toward lightweight automobile production. In this study ,based on the collapse characteristics of square section member, the collapse characteristics and energy absorption capability of hat-shaped section members were analyzed. The axial static collapse tests were performed for each section members. The collapse modes and the energy absorption capability of the each section member were analyzed. The square sectional members which were composed of the aluminum. CFRP and hybrid were used and hat-shaped sectional members which were composed of the CFRP, hybrid were used by the specimens. In the lightweight design aspect, the collapse characteristics and energy absorption capability of the each member were compared and they were analyzed.
CFRP 이중 모자형 단면부재의 계면수 변화에 따른 충격압궤거동 평가
황우채(Woochae Hwang),차천석(Cheonseok Cha),양인영(Inyoung Yang) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
This study is to experimental investigations are carried out for CFRP double hat shaped section members in order to study the effect of various stacking condition and shape of section. Impact collapse tests were performed with change of the stacking condition, such as fiber orientation angle and shape of section. Collapse mode and energy absorption characteristics were analyzed. The CFRP double hat shaped section members which manufactured from unidirectional prepreg sheets were made of 8ply. The collapse mode and energy absorption characteristics were analyzed for CFRP double hat shaped section member according to the interface numbers(2, 3, 4, 6 and 7) and outerlayer(90°, 0°)
CFRP/Al 혼성 사각부재의 충격에너지 흡수 메카니즘의 실험적 고찰
황우채 ( Woo Chae Hwang ),차천석 ( Cheon Seok Cha ),양용준 ( Yong Jun Yang ),정종안 ( Jong An Jung ),양인영 ( In Young Yang ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.6
In this study, the collapse characteristic of CFRP/Al compound square tube was investigated experimentally. The conclusions are as follows; The impact collapse characteristic of CFRP/Al compound square tube was found to be the most superior stacking conditions [90°]8. It showed that a very stable collapse mode was crushing. In the member with [0°2/90°2]s and [90°2/0°2]s, stacking conditions, 0° fibers were splayed to the external by laminar bending, while the 90° fibers were held between the folds of the aluminum member by laminar bending, local buckling and transverse crack. In the member with [45°2/45°2]s stacking conditions, fibers were held between the folds of the aluminum member by local buckling and transverse crack.
적층구성이 CFRP 사이드 부재의 충돌안전성에 미치는 영향
황우채 ( Woo Chae Hwang ),양인영 ( In Young Yang ) 한국안전학회(구 한국산업안전학회) 2014 한국안전학회지 Vol.29 No.3
The global demand for reduction in the weight of automobiles has led many countries to focus on the development of hybrid, eco-friendly, and electric cars. Reduction in the weight of materials can both increase fuel efficiency and maximize automobile performance. Therefore, the design of automobile should be inclined towards the safety aspects. but at the same time, it also consider reducing the structural weight of an automobile. In this study, CFRP side members with circular and double hat shaped section was manufactured. The impact collapse tests performed with change of the stacking condition, such as variation of interface number and outerlayer angle. The impact collapse load and absorbed energy were quantitatively analyzed according to the changes in section shapes and stacking condition. This analysis was performed to obtain design data that can be applied in the development of optimum lightweight members for automobiles.
황우채(Woochae Hwang),이길성(Kilsung Lee),차천석(Cheonseok Cha),정종안(Jongan Jung),한길영(Gilyoung Han),양인영(Inyoung Yang) 한국생산제조학회 2011 한국생산제조학회지 Vol.20 No.1
Ultimate goals in vehicle design can be summarized as environment-friendliness and safety. Along with these requirements, the importance of natural environment conservation has been focused lately. Therefore, reduced emission from vehicle and improved efficiency has become the top priority projects throughout the world. CFRP(Carbon Fiber Reinforced Plastics) of the advanced composite materials as structure materials for vehicles, has a widely application in lightweight structural materials of air planes, ships and automobiles because of high strength and stiffness. This study is to investigate the energy absorption characteristics of CFRP hat-shaped section members under the axial impact collapse test. The CFRP hat-shaped section members which manufactured from unidirectional prepreg sheets were made of 8plies. The axial impact collapse tests were carried out for each section members. The collapse mode and energy absorption characteristics were analyzed for CFRP hat-shaped section member according to the interface numbers(2, 3, 4, 6 and 7)