基于ADAMS的FSAE赛车前悬架优化分析

Optimization analysis of FSAE car front suspension based on ADAMS

为了提高整车的操纵性,对悬架的设计进行仿真优化分析。基于Catia建立了FSAE赛车前悬架模型,观察其结构硬点,在Adams/car中建立FSAE赛车前悬架虚拟样机模型,进行平行轮跳仿真,选定优化目标;通过Adams/Insight对优化目标进行多变量优化设计,根据优化结果修改硬点参数值;再次进行平行轮跳仿真试验,对优化前后综合性能进行对比;优化后,四轮定位参数变化量明显变小,有利于赛车的操控稳定性。

In order to improve the maneuverability of the vehicle,the suspension design was simulated and optimized.The FSAE racing car front suspension model was established using Catia software.The hard points of its structure were observed.A virtual prototype model of FSAE racing car front suspension was established in Adams/car for parallel wheel jump simulation.Through Adams/Insight,multi-variable optimization design was carried out for the optimization target,and hard point parameter values were modified according to the optimization results.The simulation experiment of parallel wheel jump was carried out again to compare the comprehensive performance before and after optimization.Comparing the optimization results,the variation of four-wheel positioning parameters is significantly reduced,which is conducive to the control stability of the car.