Vehicle and terrain interaction based on Adams-Matlab co-simulation  

基于Adams-Matlab联合仿真的车辆地面相互作用研究(英文)

作　　者：张晓阳[1] 孙蓓蓓[1] 孙庆鸿[1] 陈南[1] 

机构地区：[1]东南大学机械工程学院,南京211189

出　　处：《Journal of Southeast University(English Edition)》2009年第3期335-339,共5页东南大学学报（英文版）

基　　金：The National Natural Science Foundation of China(No.50575040);the Natural Science Foundation of Jiangsu Province(No.BK2007112)

摘　　要：A kind of construction truck model is built in Adams based on multi-body dynamic theory. The rigid and elastic wheels of tire-soil contact models are proposed based on the Bekker pressure model and the Jonasi shear soil model, and they are described in the form of S-function to enhance the calculation efficiency and simulation accuracy. Finally, the interaction of truck and soil is simulated by Adams-Maflab co-simulation to study the influence of soft terrain on the ride comfort of vehicles. The co-simulation results reveal that the terrain properties have a great influence on the ride comfort of vehicles as well as driving speed, road roughness and cargo weight. This co-simulation model is convenient for adding the factor of terrain deformation to the analysis of vehicle ride comfort. It can also be used to optimize suspension system parameters especially for off-road vehicles.根据多体动力学在Adams环境中建立了某款工程车辆的模型,以汽车地面力学中Bekker承压模型和Jo-nasi剪切模型为基础建立了刚性轮和弹性轮模型以模拟轮胎地面接触,并将轮胎地面接触模型用S函数描述,以提高仿真运行速度和计算精度.最后借助Adams-Matlab联合仿真工具,对车辆与松软地面相互作用问题进行了仿真计算,研究了地面特性对车辆行驶平顺性的影响.仿真计算结果表明,同车辆行驶速度、路面不平度和载荷一样,地面土壤力学特性对车辆行驶平顺性也有重要影响.该联合仿真模型能将地面变形因素考虑到车辆平顺性分析中,为非公路车辆悬架优化设计提供了思路和研究基础.

关 键 词：off-road vehicle vehicle terramechanics ride comfort CO-SIMULATION 

分 类 号：U461.33[机械工程—车辆工程]