| Summary: | 碩士 === 大葉大學 === 機械工程研究所碩士班 === 94 === Rollover accidents often cause serious injuries and fatalities, especially the vehicle which has the higher center of gravity. By increasing of market share in heavier vehicles, such as SUV, pickup, Van, explore their dynamic responses and human injury in rollover accidents are very important. By the advanced development of computer technology, use numerical analyses to simulate the dynamic response of vehicle collision and discuss the human injury become a tendency of automobile manufactures to develop the new vehicle. Numerical analysis can reduce the cost of test, shorten the R&D time tremendously, and raise the competition of automobile manufactures. The LS-DYNA finite element code was used in this study. According to the regulation of FMVSS-208 frontal impact test, the frontal structure of vehicle was validated, and the roof of vehicle was also validated according to the regulation of FMVSS-216 roof crash resistance test. Then, the regulation of FMVSS-208 dolly test was used to simulate the rollover accident and investigate the dynamic response of vehicle and human. Also, the head injury, neck injury, and chest injury of dummy were analyzed. This research can offer the numerical model and simulated experiment to automobile manufactures and relative researches as the reference to develop the protection equipment for rollover accident and raise the energy of numerical analysis in domestic vehicle industry. It can also provide some information for legislator as the reference to draw up the relative regulation.
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