中文摘要：

以国产某轿车为研究对象，按照GB20072—2006对该车进行追尾碰撞模拟仿真分析和评价。通过对该车尾部后纵梁和后围板进行结构方面的改进研究，有效地提高了汽车尾部耐撞性能和燃油系统的安全性。研究结果为今后开展汽车追尾碰撞仿真及提高尾部耐撞性能提供了可借鉴的方法。

英文摘要：

Based on a certain local manufactured passenger car, simulation of the rear-end collision was done following the rules of GB 20072-2006. It was also concluded some analysis and evaluation with respect to the impact performance of the car. Some structures in the rear tail and rear apron were redesigned, which had effectively improved the vehicle rear impact performance and fuel system safety. All of the above researches will offer a feasible method in the research of vehicle rear-end collision simulation and improving the vehicle rear crashworthiness in the future.