Simulation of distribution of forces in traction circuit tracked chassis under conditions of variability ground resistance

Abstract

Tracked chassis structurally consists of two or more traction circuits that perceive the evenly or unevenly distributed weight of the machine itself and the load from the ongoing technological operations. This article describes the results of mathematical modeling of the distribution of forces in the traction circuits of tracked chassis under conditions of variability in resistance to soil movement that occurs when the machine is operating at the junctions of soil layers, as well as in soils with a mixed composition. Depending on the geometric parameters of the tracked chassis (base and track) and the speed of its movement, each of the tracks within a single system can interact with soils of different levels of resistance, which leads to the phenomenon of running tracks, a sharp increase in the load on the engines as a result of turning the tracks and undercutting the layers of the soil layer, especially when using a separate drive. The results obtained can be applied in the process of designing control systems for tracked chassis of various transport and technological machines and complexes with the ability to control both the mechanical characteristics of drive motors and the tension of tracked belts inside the tracked circuits.

Keywords

• tracked chassis
• traction calculation
• movement resistance.