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제형호,김찬묵 국민대학교 생산기술연구소 2003 공학기술논문집 Vol.26 No.-
Analysis on dynamic characteristics of automotive roof has been carried out numerically to design a lightweight roof. Finite element analysis of a conventional steel automotive roof was verified by modal experiments on vibration characteristics. The dynamic analysis of carbon fiber reinforced composite automotive roof shows that the roof stiffness changes its values as the fiber orientation of the laminated panel changes. Optimization results yielded a composite material roof which was 52% lighter than the conventional steel automotive roof. This paper addresses a design strategy of composite roof for weight reduction.