Study On Soft Ground Trafficability Of Wheeled Vehicles Based On Soil Bearing Model

When a wheeled vehicle is traveling on soft ground,the tires are embedded and ejected in the soil.The deformation of the soil undergoes processes such as settlement,deformation,shearing,sliding,and destruction,as well as the impact of tire tread structural parameters,making the coupling relationship between the tires and the ground more complex and closely related to the soft ground trafficability of the wheeled vehicle.Therefore,a comprehensive consideration of key vehicle information The evaluation model of soft ground passing ability of wheeled vehicles based on key information of ground soil and tire ground coupling relationship is one of the key issues that need to be solved urgently in the field of vehicle ground mechanics.This paper takes the passing ability of wheeled vehicles on soft ground as the research object,and uses a combination of theoretical derivation,simulation analysis,and experimental verification to explore the evaluation indicators of the passing ability of wheeled vehicles on soft ground.Based on the specific structural parameters and typical soil mechanical characteristics parameters of a wheeled vehicle,a simulation analysis model for the passing ability of wheeled vehicles on soft ground is constructed,and the tire structural parameters,tire ground friction coefficient The influence of vehicle driving parameters,soil mechanical property parameters,topography and other factors on the soft ground trafficability of wheeled vehicles is analyzed.By analyzing the functional relationship between the influence factors and the hook traction force,a mathematical evaluation model for the soft ground trafficability of wheeled vehicles is established,which comprehensively considers the key information of vehicles,soil and ground,and vehicle ground coupling information,It provides a theoretical basis and technical support for the research on the off-road trafficability of wheeled vehicles.