지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.5
- 수록면
- 176 - 179 (4page)
이용수
이 논문의 연구 히스토리 (4)
2013
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초록· 키워드
오류제보하기
Nowadays sheet metal forming simulation is widely used and essential for reducing lead time, saving cost and increasing surface quality in automotive and electrical field. During stamping process the air in die cavity, especially outer panel, can affect surface quality due to locally high compression of air between die and blank sheet. In order to prevent this problem, air vent holes are drilled by technician who has experience and know-how. CAE can be also used for analyzing the air behavior in die cavity during stamping process and needs two aspects. One is sheet modeling with elasto-plastic behavior and the other is air modeling with fluid dynamic behavior. This study is to analyzing sheet metal forming simulation with considering air behavior in die cavity. There can be 3 types of air modeling. One is simple model having linear relationship between bulk modulus and volume change, well-known fluid cell in hydroforming process. The other is ideal gas law model having uniform pressure and temperature in air domain, well-known standard airbag. The third is FPM(Finite point method) having non-constant variables in air domain. These modeling can make direct coupling of mechanical and air fluid behavior in sheet metal forming simulation and the CAE result can give the best idea to technician in analyzing optimized air vent hole’s position, size and number. For this study commercial S/W, PAM-STAMP™ and PAM-SAFE™, is used for direct mechanical and fluid coupling.
목차
Abstract
1. 서론
2. 공기 거동 모델링
3. 성형해석
4. 결론
참고문헌
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UCI(KEPA) : I410-ECN-0101-2014-551-000203933