中文摘要：

以车身减速度为研究对象,以乘员损伤指标为目标,对减速度波形进行简化并对其进行优化,为车身改进提供方向,实现车身耐撞性的正向设计。针对某款微型客车,在该车100%正面碰撞试验的基础上,利用乘员损伤分析软件建立了该车的正面碰撞乘员约束系统模型并对模型进行了验证。对该车的减速度波形进行了简化,以约束系统模型为基础,对简化减速度波形进行优化。针对特定的乘员损伤指标,优化得到了最优的车身减速度波形。为了提高计算效率,通过实验设计构建了乘员约束系统的Kriging近似模型的代替仿真模型。结果表明：该方法能更为合理地利用车身前部的压溃空间,为车身修改提供改进方向及目标,有利于车身安全性的正向设计,具有较强的工程实用性。

英文摘要：

With the occupant injury indices as target, crash pulse was researched and simplified. And then crash pulse was optimized to provide improved direction for the body to achieve a forward design of body crashworthiness. Aiming at a minibus, an occupant restraint system of the minibus was modeled using mathematical dynamic model （MADYMO） software and validated based on the frontal impact test. The crash pulse was simplified to optimize the deceleration waveform based on the restraint system model. For specific occupant injury indices, the optimal deceleration waveform was gained. In order to improve efficiency, through the design of experiments Kriging approximation model of the occupant restraint system was built instead of simulation model. The results show that the method can realize that the crush space of the front body can be used rationally and provide improved direction and goals for body. The method that is conducive to a forward design of body crashworthiness has a strong engineering practicability.