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용접면적 최소화를 위한 다중물질 차체구조의 위상최적설계
Topology Design Optimization of Vehicle Body Structure with Multi-Material for Minimizing Welding area
- 임성훈;
- 민승재
초록
This paper presents a new design optimization method that is applicable to design the vehicle body structure with multi-material. Two different level set functions are employed to express the properties of steel and aluminum in automotive body, and the concept of phase field model is applied to construct the objective function for considering the welding area whic h causes an increase of the production cost. The optimization problem is formulated to minimize both the mean compliance of body structure under an exciting load and the contact area between two materials. To confirm the usefulness of the proposed method, a structural design example for an automotive underbody is provided.
키워드
Topology design optimization(위상최적설계); Multi-material(다중물질); Welding area(용접면적); Phase field method(페이즈필드법); Multi-phase level set model(다상 레벨셋 모델)
- 제목
- 용접면적 최소화를 위한 다중물질 차체구조의 위상최적설계
- 제목 (타언어)
- Topology Design Optimization of Vehicle Body Structure with Multi-Material for Minimizing Welding area
- 저자
- 임성훈; 민승재
- 발행일
- 2012-05
- 유형
- Proceeding
- 저널명
- 2012 한국자동차공학회 부문종합 학술대회 논문집
- 페이지
- 1078 ~ 1080