摘要
基于三维几何建模软件CATIA和多体动力学软件MSC.Adams,建立了用于操纵稳定性分析的全地形车整车多体动力学模型。参照汽车操纵稳定性试验方法,对全地形车进行稳态回转仿真分析、角阶跃输入仿真分析和单'移线'仿真分析。全地形车的稳态回转特性在低侧向加速度时体现为不足转向,中等侧向加速度时体现为过多转向,高侧向加速度时又表现出不足转向特性,这是由于全地形车采用单摇臂式后悬和后桥单轴驱动。分析表明驾驶员身体的移动能在一定程度上修正稳态回转特性。
A multi-body-dynamics model of all-terrain vehicles （ATVs） is built for analyzing handling stability using the geometry software CATIA and dynamic analysis software MSC. ADAMS based on the controllability and stability testing procedures for automobiles, steady static circular simulation, steering wheel angle step input simulation, and single lane change simulation are performed. The results indicate that this ATV under-steers in the low lateral acceleration range, over-steers during middle lateral acceleration, and under-steers during high lateral acceleration due to its single rocker rear suspension and single drive axle. The steering behavior of this ATV could be changed by the driver shifting her body.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第6期620-624,共5页
Journal of Chongqing University
基金
重庆市重点自然基金资助项目(CSTC2006BA6017)
关键词
全地形车
操纵稳定性
多体动力学
虚拟样机
all terrain vehicles
handling stability
multi-body system dynamics
virtual prototype
