Abstract
자동차 부품 중 승차감이나 안전에 직접적으로 관련된 부분은 시트이다. 또한 이러한 여건을 만족시키면서 승객의 안전을 보장하는 충분한 강성과 강도를 가져야 한다. 자동차 시트는 3D 모델링 되었고, 전후 유격, 측면 유격 및 전후 모멘트 강도의 3가지 실험에 대하여 시뮬레이션으로서 구조해석을 하였다. 해석 결과, 전후 유격 시험에서는 <TEX>$0.038^{\circ}$</TEX>의 변형 각도의 값과 측면 유격 시험에서는 <TEX>$0.04^{\circ}$</TEX>의 변형 각도의 값이 각각 나타났다. 또한 전후 모멘트 강도시험에서는 전방 및 후방 하중 시에 최대의 전변형량 값이 각각 0.18946mm 및 3.2482mm로 나타났다. 본 연구결과는 자동차 시트 프레임의 과도한 변형 및 파괴가 없음으로서 승객의 안전을 보장하는 충분한 강성과 강도를 검증할 수 있었다. Seat is the part relevant to comfortableness and safety among automotive parts directly. It also should have sufficient stiffness and strength to satisfy these conditions and ensure the safety of passenger. Automotive seat is modelled with 3D and is simulated with structural analyses about three kinds of experiments by before and after gap, side gap, before and after moment strength. As analysis result, deformation angles of <TEX>$0.038^{\circ}$</TEX> and <TEX>$0.04^{\circ}$</TEX> are respectively shown at before and after gap test, side gap test. Through before and after the moment strength test, maximum total deformations of 0.18946mm and 3.2482mm are respectively shown at front and rear loads. By the study result of no excessive deformation and no fracture at automotive seat frame, the sufficient rigidity and strength to guarantee the safety of passenger can be verified.
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