车辆行驶的沙漠沙剪切特性的研究

A STUDY ON THE RELATIONSHIP OF SHEAR CHARACTERISTICS OF DESERT SAND UNDER A MOVING VEHICLE

研究了描述车辆行驶下沙漠沙的剪切特性模型及其参数确定方法 ,建立了描述地面剪切特性最佳模型的评价指标。从车辆行驶性观点出发 ,测出了新疆塔克拉玛干沙漠沙的剪切应力—位移关系 ,确定了描述沙漠沙的最佳剪切特性模型。所得结果为研制沙地通过性良好的运输车辆—沙漠车辆。

The shear characteristics models for describing the Takelamagan desert sand in Xinjiang under a moving vehicle and methods for determining their parameters are studied. The index for evaluating the terrain shear characteristic models is set up. Based on the viewpoint of vehicle walking characteristics, shear stress displacement relations of the sand are tested and an optimum shear characteristics model for the description of sand is obtained. These results lay a foundation for developing sand traversing vehicles, exploiting desert resources and crossing through desert areas in military operations.