中文摘要：

在分析了我国高速公路汽车护栏碰撞事故特点的基础上，对汽车与混凝土护栏的碰撞机理进行了分析，建立了汽车的有限元模型和混凝土护栏的多体模型，通过不同的碰撞初始条件对汽车与混凝土护栏碰撞进行了仿真研究，得出碰撞特性随着混凝土护栏参数的变化规律，并对碰撞时乘员头部和胸部所受的伤害进行了仿真分析，得出碰撞人的伤害特性．

英文摘要：

Ouardrail, as the main security facility, on the highway, can effectively prevent traffic accidents, reduce loss of human＇s life and property. Therefore, it has a very significance for the study on the guardrail. Based on the simulation software, a car finite element model and multi-body concrete guardrail simulative impact model was established. By studying the dynamic response of vehicle and passenger in collision, this paper announced the inherent relation between the damage of the persons and relevant factors of traffic accident, such as the impact angle, impact speed and so on, and acquired several significant conclusions.