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基于被动安全设计技术思想,进行车体结构的耐碰撞设计。对车体结构进行耐碰撞仿真计算分析,根据仿真计算结果分析车体结构的耐碰撞性,验证车辆设计中防爬器、塑性变形吸能区的有效性。得出车体塑性大变形均仅发生在车体端部的非乘客区,弹性小,变形发生在车体的乘客区的结论。同时,变形过程稳定,没产生失稳,设计符合预期的安全要求。
Based on the passive safety design technology, the collision-resistant design of vehicle body structure is carried out. The collision-resistant simulation calculation and analysis of the vehicle body structure are carried out. The crashworthiness of the vehicle body structure is analyzed according to the simulation calculation results to verify the effectiveness of the anti-climbing device and the plastic deformation energy-absorbing zone in the vehicle design. It is concluded that the large plastic deformation of the vehicle body only occurs in the non-passenger area at the end of the vehicle body, with less elasticity and deformation occurring in the passenger area of the vehicle body. Meanwhile, the deformation process is stable, did not produce instability, designed to meet the expected safety requirements.