一、地面特性与地形在设计高通过性汽车时,首先要重视汽车所行驶的地面特性。地面特性不仅取决于土壤的成分,而且也与它的湿度、植被情况、低温时冰冻层的深度以及冰、雪的覆盖情况有关,所有这些又都是在不断地变化着的。判定地面通过性的标准是地面的承载能力、剪切强度及驱动轮与土壤表面间的附着系数,后者不 First, the ground features and topography In the design of high passing car, we must first pay attention to the driving characteristics of the ground car. Ground characteristics depend not only on the composition of the soil, but also on its humidity, vegetation conditions, the depth of the frozen layer at low temperatures, and the ice and snow cover, all of which are constantly changing. The criteria for determining the ground passing are the carrying capacity of the ground, the shear strength and the adhesion coefficient between the driving wheel and the soil surface, the latter not