汽车平顺性的仿真与试验分析

Analysis on Car Ride Comfort Simulation and Test

目前,平顺性对于汽车性能评价愈加重要,对于平顺性的测试需求也愈加迫切。使用ADAMS/Car模块建立了某轿车的整车模型,并进行了整车平顺性仿真。在实车试验中,选取了一段高速路进行了道路试验,并通过道路模拟试验台测试了越野工况下的车辆振动响应量级。实车试验中采用不同车速和多测点组合工况进行测试,并对获取的相关数据进行了处理分析,最终,结合道路模拟试验台结果得到了车速、加速度轴向、座椅位置、路面条件等因素对汽车平顺性的影响,并对实车试验与仿真结果进行了简单对比,结果表明,仿真模型精度满足要求,可以用于平顺性的仿真试验,道路模拟试验台可以在实验室环境内完成某些极限工况下的平顺性评价,对于常规试验是有益的补充。

At present, the evaluation of car ride comfort is more important, so the need of test for car ride comfort is more urgent. It uses the ADAMS/car to build a prototype car model, and car ride comfort simulation is made. In the car test, it choses some highway performing road test, and uses the road simulation test platform to test the vibration response under the off-rode condition. It choses different speeds and different positions to do actual vehicle ride performance testing. Finally, together with the simulation test platform results, through data acquisition and processing, analyzes the influence of some factors such as speed, acceleration axial, seat position, road conditions, etc. On the car ride, then makes a simple comparison between the real vehicle test and simulation results, the results show that simulation model precision meets the demand and can be used in the ride comfort simulation teat, the rode simulation test platform can be used to finish the ride comfort evaluation under some extreme conditions in the lab, it is a very useful make-up for the common test.