某轻卡驾驶室碰撞性能仿真研究

Simulation Study on Crash Performance of a Light TYiick Cab

以在产某轻卡驾驶室进行正面撞击和双A柱撞击仿真与试验对标分析,对碰撞后驾驶室外形进行扫描,将扫描的点云导入软件与仿真碰撞后模型进行三维重合度对比。同时对关键零部件的变形模式、门框变形量及生存空间等多项指标进行对标,其总体对标结果误差在10%以内,仿真精度高。在新一代轻卡碰撞性能开发中,利用仿真技术,在设计阶段,对正面撞击、双A柱撞击和顶部强度进行了多轮次仿真迭代,深入研究,找到了影响性能达成的关键部位和结构,在传力路径上进行结构加强和优化,其碰撞性能达到了开发目标。

The front impact and double A pillar impact simulation and test benchmarking analysis were carried out for the cab of a light truck in production,the cab shape after the collision was scanned,and the scanned point cloud was imported into the software to compare the three-dimensional coincidence with the model after the simulation collision.At the same time,the deformation mode,door frame deformation,living space and other indicators of key components were compared.The overall error of the calibration results was within 10%,and the simulation accuracy was high.In the development of new generation light truck crash performance,using simulation technology,in the design phase,we carried out multiple rounds of simulation iterations for frontal impact,double A-pillar impact and top strength.Through in-depth research,we found the key parts and structures that affect the performance,strengthened and optimized the structure on the force transfer path,and its crash performance reached the development goal.