한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)
- 제9권1호
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- Pages.171-180
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- 2001
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- 1225-6382(pISSN)
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- 2234-0149(eISSN)
차체의 변형상과 변형정도에 의한 자동차 충돌상황의 재구성
Collision Configurations Reconstruction Using Deformation Shape and Deformation Severity of Car Body
초록
Collision accident reconstruction algorithm are developed based on the deformation shape and severity of a car body. At first, the body stiffness equation representing the force-deformation relationship is derived using finite element analysis for head on collision of two cars. The database of deformation shapes and energies is constructed for five different collision configurations; each configuration contains three velocity conditions. Deformation shapes are obtained using a curve fitting method and result in cubic polynomials. Deformation energies are calculated using a stiffness equation and deformation data. Three algorithms are developed to reconstruct collision configuration compared with constructed database. The developed algorithms show reasonably good performance to find collisions conditions for some test problems.
키워드