摘要
应用多刚体的车辆与假人模型,将人体伤害作为事故场景布置以及再现结果评估的重要依据,使用分析法与模拟法相结合的优化方法研究人车碰撞事故再现。针对人车碰撞中行人易受伤害的特点,提出了一个面向人体损伤的行人事故再现评估模型。将此评估模型作为优化方法中的目标函数,将碰撞场景、碰撞前车速作为设计变量,事故资料作为约束条件,经多刚体动力学算法求解,手工实现了事故再现的最优结果。将该方法及评估模型应用到一起真实交通事故中,仿真结果与法医鉴定结果大致吻合,初步验证了此方法与模型的可行性。
Based on the principle of multi-body systems, the method for reconstruction of car-pedestrian accident is studied. The method offered makes a full use of the merits of integration of simulation and analysis, and an evaluation model about the car-pedestrian accident with the injury of passenger is presented . A manual optimization method for car-pedestrian accident reconstruction is provided, in which the evaluation model is used as target function, the crash scenario and the vehicle velocity are used as design variables, the accident data are used as constraint, condition and the multi-body algorithm is used in calculation Via a real accident example, the feasibility of the method and model is verified by the judgement of legal medical expert.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第5期95-98,143,共5页
Journal of Vibration and Shock
基金
国家自然基金重点项目资助(90612017)
国家高技术研究发展计划(863)项目(2007AA//Z234)
国家自然科学基金项目(50705058)资助
教育部博士点基金(20070248113)资助
关键词
事故再现
评估
多刚体
人体损伤
accident reconstruction
evaluating
multi-rigid-bodies
lnjury
