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利用仿真软件可以充分利用事故现场信息实现对人车碰撞事故的再现分析,但这些信息通常包含不确定性。考虑这些不确定的信息对仿真结果的影响,可使所得结果更可靠、合理。针对人车碰撞事故仿真模型复杂、无显式表达式的特点,将响应面方法及试验设计方法引入到再现分析中,通过构建复杂人车事故再现模型的近似响应函数,进而结合已有不确定性分析方法研究仿真结果的不确定性问题。最后,讨论了响应面函数的选取并给出了不确定性分析的步骤。以一人车碰撞试验为例,分析了车辆碰撞行人车速的不确定性,算例结果表明,响应面方法可用于辅助分析人车碰撞事故再现仿真结果的不确定性问题。
The use of simulation software can make full use of the scene of the accident to reproduce the collision analysis of people and vehicles, but the information usually contains uncertainty. Considering the impact of these uncertain information on the simulation results, the results obtained are more reliable and reasonable. Aiming at the characteristics of complex and no explicit expression of the simulation model of human-vehicle collision accident, the response surface method and experimental design method are introduced into the analysis of reproduction. The approximate response function of the model is reconstructed by building a complex human-car accident, Uncertainty Analysis of Simulation Results by Sex Analysis. Finally, we discuss the selection of response surface functions and give the steps of uncertainty analysis. Taking a one-vehicle collision test as an example, the uncertainty of vehicle collision speed is analyzed. The results show that the response surface method can be used to analyze the uncertainty of simulation results of collision between vehicles and vehicles.