基于车辆及乘员安全的汽车护栏碰撞仿真分析

The Simulation and Analysis of Impact Between Vehicle and Guardrail Based on the Vehicle and Occupant Safety

针对某微型轿车在高速行驶时与路边护栏发生碰撞时的安全性能,建立了该车型的"汽车-乘员-护栏"碰撞系统模型,模拟了该型车辆在与常见的Gr-A-2C两波护栏碰撞后的运动情况、行驶轨迹、车体加速度以及乘员伤害情况。分析结果表明:该型车辆与常见Gr-A-2C型护栏碰撞后,车辆运行轨迹能被正确引导,未发生明显拌阻,包括人体伤害值在内的各项安全性能指标均满足相关标准要求。

Considering the safety performance of a mini car crashed into roadside guardrail in the high speed, the ＂Car-Occupant-Guardrail＂ collision system mode was established. The movement and running track of the car, the acceleration of the car body and the occupant injury after the impact between the car and the common two wave guardrail Gr-A-2C were simulated and analyzed. The results showed that after the impact between the car and the common two wave guardrail Gr-A-2C, the car＇ s running track can be correctly led, and there is no obvious mix resistance phenomenon, and the safety performance indices, including the human body damage, meet the relevant standards.