某越野车辆机动性仿真分析及评价

The Research on Mobility of an Off-road Vehicle

针对某4×4军民两用越野车辆,对其机动能力进行综合性研究.通过搭建某军民两用越野车辆的多体动力学模型,以车辆在不同等级路面上行驶时,乘坐人员平均吸收功率下对应的车速为评价指标,对其进行平顺性仿真.与一般军用越野车辆对比,某军民两用越野车辆在人体舒适范围内最高公路行驶车速可达157 km/h,最高越野行驶车速在提升的同时满足平顺性指标.该越野车辆在机动性上不仅具备独特的高原起步加速性能,而且还兼顾了越野车辆在多种地形地面的通过性以及能够通过的最高车速.研究表明,该军民两用越野车辆具有良好的机动能力.

Mobility of a 4×4 military-civilian dual-use off-road vehicle was researched comprehensively.The ride comfort simulation was performed on a multi-rigid-body dynamic model of the off-road vehicle,where the corresponding vehicle velocity under the average suction power of the occupants on different roads was adopted as the evaluation index.By comparison with general military off-road vehicles,the maximum road speed of the off-road vehicle could reach 157 km/h without exceeding the comfort range of the human body,indicating that the maximum speed of the off-road driving met was increased while satisficing the ride comfort requirements..The off-road vehicle not only had unique plateau starting acceleration performance,but also took into account the pass ability of the off-road vehicle in various terrains and the corresponding maximum speed.Research shows that the off-road vehicle has good mobility.