基于ADAMS的全地形车整车振动舒适性仿真分析

Simulation and Analysis of ATV Vibration Comfort Based On ADAMS

利用ADAMS软件,建立了包含柔性车架、前后悬架、转向系、轮胎和人体的全地形车刚柔耦合多体动力学模型,采用谐波叠加法模拟并生成符合国家标准的B级路面文件。参照国际标准ISO2631-1997及ISO5349-2001的方法,对全地形车进行了整车振动舒适性仿真分析。仿真结果和试验结果对比表明,二者对全地形车整车振动客观评价结果基本一致,即所建立的全地形车多体动力学模型正确,可在全地形车的设计或改进阶段预测其整车振动舒适性,能大大缩短产品的开发周期,降低开发成本,提高产品市场竞争力。

The flexible coupling multi-body dynamics model of an All-Terrain Vehicle（ ATV） was established based on ADAMS which contains a flexible frame,front and rear suspension,steering,tires and human body. Grade B-class roads file was created according to the method of superposition of harmonic wave. Simulation and analysis of ATV vibration comfort was achieved based on the international standard ISO 2631-1997 and ISO5349-2001. Comparing both the simulation results and the test results show that the objective evaluation of all-terrain-vehicle vibration results are basically the same,namely the multi-body dynamics model of ATV was correct which can predict the vibration comfort of ATV in redesigning or remodelling stage, then greatly shorten product development cycles, reduce development costs and improve market competitiveness.