机械车辆在道路上行驶,凸凹不平的路面对其产生作用,这种作用就是地面载荷。由于地面载荷的作用,机械的使用性能受到影响,零件的寿命降低,机械的平顺性也变差了。因此,在设计、试验、评价机械车辆时,应当充分考虑地面载荷的影响。应该说,在过去的工作中是考虑到了地面载荷的影响的。例如,在讨论滚动阻力时,不 Mechanical vehicles travel on roads, and uneven roads act on them, which is ground loading. Due to the effect of the ground load, the performance of the machine is affected, the life of the parts is reduced, and the mechanical smoothness is also deteriorated. Therefore, when designing, testing, and evaluating mechanical vehicles, the effects of ground loads should be fully considered. It should be said that the impact of ground loads was taken into account in past work. For example, when discussing rolling resistance, not