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建立了偏载车辆的数学模型,采用德国低干扰谱,选择车辆直线运行速度为300km.h-1,分析了偏载对车辆平稳性的影响趋势,对比了纵向偏载和横向偏载对车辆平稳性的影响程度。分析结果表明:随着偏载的增大,车辆的整体平稳性逐渐变差,纵向偏载将引起车辆前后端的平稳性产生较大的差距,而横向偏载引起车辆前后端平稳性产生的差距较小,因此,为了提高车辆的整体平稳性,应尽量减小车辆的偏载,尤其应严格控制车辆的纵向偏载。
The mathematical model of partial load vehicle was established. The German low interference spectrum was used to select the vehicle linear speed of 300km.h-1. The influence of partial load on the vehicle ride stability was analyzed. The longitudinal load and lateral load were compared. The degree of influence of stationarity. The results show that with the increase of partial load, the overall stability of the vehicle gradually deteriorates. The longitudinal load will cause a large gap between the stability of the front and the rear of the vehicle, while the lateral load will cause the difference between the front and rear end of the vehicle Therefore, in order to improve the overall stability of the vehicle, the partial load of the vehicle should be minimized. In particular, the longitudinal load of the vehicle should be strictly controlled.