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논문 기본 정보

자료유형
학위논문
저자정보

김은영 (고려대학교, 高麗大學校 大學院)

지도교수
蔡洙元
발행연도
2015
저작권
고려대학교 논문은 저작권에 의해 보호받습니다.

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Airbag is effective to decrease injury of the passengers by protecting from tossing outside of car and hitting inner structure when car crash situation. To improve safety of the passengers, many kinds of airbag are using in a vehicle such as driver airbag (DAB), passenger airbag (PAB), Among them, the shape of PAB is more complicated and its volume is also bigger than the others. It requires tether inside. Thus, it requires rapid deployment in a crash to protect occupants. However, as it deploys fast by a big force, occupant injury caused by PAB is frequently reported. Car crash simulation is widely used in development because it can effectively reduce the time, expenses, and labor necessary for car crash tests. In the case of airbags, however, much time is consumed in development because models have to be continuously designed anew when the shapes of airbags change. To simplify the design of PAB and the creation of an FE model and to reduce time for development, in this paper, we developed an automatic generation program for a PAB simulation model and designed it so that a generated PAB can be automatically inserted into the car crash simulation model. We expect that this program will reduce the production time of a PAB FE model and be used in research on the relationship between design parameters, which determine the shape of PAB, and injury criteria in the future.

목차

Abstract .................................................................................................................................... i
목 차 .......................................................................................................................................... iii
List of Figure ....................................................................................................................... iv
List of Tables ......................................................................................................................... v
1. 서론 ....................................................................................................................................... 1
1.1 연구 배경 및 목적 .................................................................................................. 1
2. 조수석 에어백 설계 시스템 구성 ......................................................................... 5
2.1 조수석 에어백 전개형상 생성 ......................................................................... 6
2.1.1 Topology 구성 ........................................................................ 8
2.2 조수석 에어백 형상 설계변수 정의 .................................................................. 10
2.3 조수석 에어백 형상 설계변수 변경 규칙 정의 .................................................. 14
2.3.1 width 1 값 ................................................................................................... 15
2.3.2 키 포인트 1-2-3 위치 ................................................................................ 15
2.3.3 키 포인트 3 위치 ........................................................................ 19
2.3.4 키 포인트 4 위치 ........................................................................ 22
2.4 Tether 생성 ............................................................................................................... 25
2.5 초기 메시 생성 ....................................................................................................... 25
2.5.1 Scale down method 패턴화 ....................................................................... 26
2.5.2 조수석 에어백 positioning ......................................................................... 26
2.6 초기 메시, 참조 메시 자동 삽입 ........................................................................... 27
3, 생성모델 검증 ......................................................................... 28
3.1 조수석 에어백 모델 충돌해석 ......................................................................... 28
3.2 해석결과 비교 ........................................................................ 31
4. 결론 ...................................................................................................................................... 32
5. 후기 ...................................................................................................................................... 33
6. 참고문헌 .................................................................................................................... 34

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