| 제목 |
보 요소와 비선형 스프링 특성을 이용한 버스 전복 해석 |
| 분야 |
차량동역학 및 제어 |
| 언어 |
Korean |
| 저자 |
박수진(국방기술품질원), 유완석(부산대학교), 권연주(부산대학교), 김진배(대우버스(주)) |
| Key Words |
Rollover strength(전복 강도), Survival space(생존 공간), ECE regulation(유럽경제위원회 법규), Beam element(보 요소), Nonlinear spring(비선형 스프링), Collapse theory(붕괴 이론) |
| 초록 |
In case of bus rollover, the body structure of the bus should be designed to ensure the survival space for passengers. So, this study focuses on evaluating rollover strength through a computer simulation using the commercial code, LS-DYNA3D at the initial stage of vehicle development. For this study, section structure was modeled using a simple beam element, and impact boundary conditions required by ECE(Economic Commission for Europe) regulation No.66 were applied. In order to confirm the validity of the beam element bus model, the results compared with the test results and shell element bus model. The analysis errors from beam element bus model are due to the difference in strain energy of joint area between beam and shell model. In this study, a method for the joint modeling was suggested by using nonlinear springs to which the collapse mechanisms were applied |
| 원문(PDF) |
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