【摘要】 文中以某车型钻卡工况为例，采用LS-DYNA有限元模型对标定矩阵中所有的碰撞工况进行了CAE分析，并将分析得到的车身加速度曲线作为ACU标定的输入参数开展ACU的标定。针对钻卡工况卡车安装和未安装后端防护装置两种情况，分别研究该车型的碰撞安全性能。结果表明：在卡车安装有标准的后端防护装置的情况下，钻卡后该车型乘员舱完整，ACU能够正常点爆；在卡车未安装后端防护装置的情况下，则钻卡后该车型无法保护乘员舱完整性，A柱上边梁断裂风险较大，同时ACU也无法正常点爆；通过加强A柱上边梁强度，在卡车未配置后端防护装置的情况下，保证了该车型乘员舱的完整性，同时ACU也能正常点爆。更多还原

【Abstract】 In this article, with the focus on the drill-card working conditions for certain vehicles, the CAE analysis is carried out on all the collision working conditions in the calibration matrix by means of the LS-DYNA finite-element model, and the body’s acceleration curve obtained from the analysis is used as the input parameter for ACU calibration. The truck’s collision-safety performance is explored under the drill-card working conditions with and without the rear-end protective device. The results show that when the truck is equipped with the standardized rear-end protection device, the passenger compartment is integral and ACU can detonate normally. Without any rear-end protective device, the truck fails to protect the integrity of the passenger compartment under the drill-card working conditions, the A-pillar’s upper-side beam is very likely to suffer from fracture, and ACU cannot detonate normally. By strengthening the strength of the A-pillar’s upper-side beam, the integrity of the truck’s passenger compartment can be ensured without any rear-end protective device, and ACU can detonate normally.更多还原