A study on the passing performance of a two-tire model of a special vehicle based on a loose road surface

Abstract In modern warfare, increasingly complex terrain and road conditions pose great challenges to the actual passing speed and maneuverability performance of combat vehicles, especially in terms of soft-surface maneuverability performance. In this paper, for the single road condition and influencing factors existing in the study of soft-surface maneuverability, based on the joint simulation method of multi-body dynamics-discrete element (MBD-DEM), we study and analyze the passing effect of tires, front and rear tire traction performance, and their differences under a different relative humidity of the soil. We also study and analyze the relationship between wheel speed and tire traction efficiency by considering the effect of wheel speed on the traction performance of tires. The relationship between wheel speed and tire traction efficiency was extended considering the effect of wheel speed itself on tire traction performance.