【摘要】 下肢动力学性能研究是直升机抗坠毁试验假人研制过程中的重要课题。在对直升机坠撞事故中飞行员下肢损伤分析的基础上,通过建立具有我国50 th百分位飞行员参数特征的假人下肢有限元模型,按试验要求对下肢动力学性能进行仿真分析;将仿真结果分别与假人下肢动力学性能参考指标及试验结果比较,发现该下肢模型具有较好的生物拟合性,表明采用有限元法对假人下肢动力学性能分析的有效性和可行性。由于直升机坠撞事故中人体下肢损伤形式较复杂,该研究对将来能实现多方位碰撞损伤评价的假人下肢动力学性能研究具有一定指导意义,对假人其他部位动力学性能的仿真研究也具有重要参考价值。更多还原

【Abstract】 Studying dynamic performance of a lower limb model is very important for developing a dummy in helicopter anti-prang tests.Here,injuries of a pilot’s lower limb in a helicopter crash accident were analyzed.The finite element model for a dummy’s lower limb with the Chinese 50th percentile pilot parameter features was constructed.And the dynamic performance of the lower limb was simulated according to its calibration rules.Comparing the simulated results with the reference index of the dummy lower limb’s dynamic performance and the test results showed that the FE model has a good anthropopathic integrality and the simulation method used to analyze the dynamic performance of the dummy’s lower limb is correct and validated.The study was a guide to develop a dummy’s lower limb with colliding injuries in different directions and was a reference for the simulation study on dynamic performance of a dummy’s other parts.更多还原