bumper system meaning in English

缓冲系统

In this paper , finite element method ( fem ) was used to study the biomechanical responses and injury mechanism of pedestrian lower extremities in traffic accidents . the fem model was used also to predict the risk of bone fracture of the lower extremities . the results from this study can forms a background knowledge to improve the safety performance of passenger car bumper system for protection of pedestrian lower extremities in traffic collisions
为了减少行人在碰撞事故中下肢的损伤风险,本文采用有限元分析的方法,研究了行人下肢的碰撞生物力学响应和损伤机理,并模拟分析预测了下肢的骨折风险,研究结果可为改进车辆保险杠系统的安全性能提供依据。