摘要
利用拓扑理论,对某国产轿车的整车拓扑结构进行分析,系统分析前后悬架子系统拓扑结构、转向子系统拓扑结构和动力总成拓扑结构并建立相应模型,结合Fiala轮胎模型和人椅系统模型,在ADAMS环境下建立了整车的虚拟样机,并编制随机的B级路面模型,研究在路面随机输入条件下该车的行驶平顺性。最后将该车道路试验结果与仿真结果进行对比,结果显示驾驶员座椅处垂向加速度功率谱的峰值所对应的频率一致,峰值大小略有差别,而垂向加速度功率谱变化趋势相同。
Topology is applied to the topological structure analysis on the complete vehicle of a home-made car. The topological structures of all subsystems, including front and rear suspensions, steering and powertrain, are analyzed, and corresponding virtual prototype models are set up. Further adding the Fiala tire model and man-seat model, a virtual prototype of complete vehicle is built in ADAMS. Combined with the B-grade road surface model, a simulation on ride comfort of the vehicle under random road input is carried out. The results of comparison between simulation and road test show that the frequencies at power spectra peak of vertical acceleration at driver seat are consistent, but with some difference in peak magnitude, while the variation of power spectra presents the same trend.
出处
《汽车工程》
EI
CSCD
北大核心
2007年第5期393-396,425,共5页
Automotive Engineering
