Abstract: The heavy-duty semi-trailer model was set up by ADAMS/Car. The pavement surface was imitated by using sine curve based on the measured data of Qijiang-Wansheng highway pavement roughness. The simulation analysis of the vehicle dynamic loads of every wheel, at different speeds and loads was conducted. In addition, the live loads on vehicle model with different wave-lengths and amplitudes were also investigated. The simulation result provides some reference for analyzing the interaction between vehicle and pavement surface.

Key words: ADAMS/Car, semi-trailer, dynamic loads

摘要： 利用ADAMS/Car仿真软件建立了某重型半挂车模型，以綦江—万盛高速公路路面实测平整度数据为基础，用正弦曲线模拟路面，对车辆各轴车轮及不同车速和载重时的动荷载进行了仿真分析，同时对车辆模型在假定不同路面振幅和波长下的动荷载也进行了研究，为分析车辆与路面之间的相互作用提供参考价值。

关键词: ADAMS／Car, 半挂车, 动载荷