基于边界表示法建模的履带车辆爬坡性能分析

Analysis of the Climbing Performance of Tracked Vehicles Based on B-Rep Modeling

摘要: 为探究履带车辆在松软路面行驶时的爬坡性能，本文基于边界表示法(B-Rep)，采用C++编程语言建立了履带车辆模型，并基于离散元法的基础理论建立了爬坡工况下的松软土壤路面模型，最终完成了履带车辆爬坡工况的仿真分析。研究结果表明，履带车辆从直行进入到爬坡工况的过程中，牵引力先增加后趋于平稳；在爬坡工况下，履带车辆的牵引力随路面坡度的增加而增大；履带车辆在松软路面爬坡的极限坡度约为33˚。该研究对履带车辆的设计具有理论指导意义。

Abstract: To investigate the climbing performance of tracked vehicles on soft terrain, a tracked vehicle model was established in this paper using the C++ programming language based on the Boundary Representation (B-Rep) method. Additionally, a soft soil road model under climbing conditions was developed based on the fundamental theory of the Discrete Element Method (DEM). Finally, a simulation analysis of the tracked vehicle under climbing conditions was completed. The research results indicate that during the transition of a tracked vehicle from straight driving to climbing conditions, the traction force first increases and then stabilizes; under uphill conditions, the tractive force of a tracked vehicle increases as the road gradient increases; the maximum climbing slope of the tracked vehicle on soft terrain is approximately 33˚. This study provides theoretical guidance for the design of tracked vehicles.