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为准确评估大风天气下行车的安全性,基于对大风天气下车辆的受力及安全行驶条件的分析,选取大风天气下不同风力、不同速度时车辆的侧滑距离作为评估指标。应用ANSYS软件分别建立大型车和小型车实体模型,并对实体模型施加自由度约束和载荷,针对不同级别的风速、不同车速相对应的120种仿真情况对行车状况进行了模拟计算,得到侧滑距离指标的仿真结果。据此制定大风天气下行车安全评估等级划分方案。
In order to accurately evaluate the safety of vehicles in windy weather, based on the analysis of the forces and safe driving conditions of vehicles in windy weather, the skid distance of vehicles with different wind speeds and different speeds in windy days is selected as the evaluation index. ANSYS software was used to build the solid model of large car and small car respectively, and imposed the constraint and load of freedom on the solid model. According to 120 simulations with different wind speeds and different speeds, the driving conditions were simulated and the results were obtained. Distance indicator simulation results. According to this formula, we will draw up a classification plan for safety assessment of vehicles under windy weather.