Influence of track ground pressure distribution uniformity on traction under slope

IF 5.3 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Biosystems Engineering Pub Date : 2025-08-05 DOI:10.1016/j.biosystemseng.2025.104252

Xiaodong Mu , Zonglin Li , Yuxuan Ji , Zhijie Liu , Zheng Wang , Luojia Duan , Shiying Chen , Xiaoyan Zhu , Zhong Lin , Fuzeng Yang

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引用次数: 0

Abstract

Traction is one of the important parameters for measuring the operation of vehicles. When tracked vehicles are driven on slopes, gravity can cause an uneven distribution of ground pressure on both sides of the tracks, seriously affecting the traction adhesion of the vehicle. The purpose of this study is to study the influence of the uniformity of contact pressure distribution on traction force on track slopes with the intent to change the uniformity of the distribution of contact pressure on track slopes by adjusting the position of the vehicle's barycentre. To quantify the distribution phenomenon of track grounding pressure, a coefficient for predicting the uniformity of ground pressure distribution is proposed. Platform tests are conducted on slopes of 5°, 10°, 15°, and 20°, and the results showed that the higher the slope, the worse the uniformity of ground pressure distribution and traction. After adjusting the vehicle's barycentre, the uniformity of ground pressure distribution was improved. Whenever the uniformity of ground pressure distribution increased by 1 %, the vehicle's traction increased by ∼3 %. On a 20° slope, the barycentre adjustment increased the uniformity of ground pressure distribution increases by 17.6 % and improved traction by 58.5 %. Therefore, barycentre-adjusted tracked vehicles can greatly improve the uniformity of ground pressure distribution, thereby improving slope traction adhesion and safety. The results and patterns of this study have great guiding significance for the design and performance evaluation of tracked vehicles in hilly and mountainous areas in the future.

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轨道地压分布均匀性对坡下牵引的影响

牵引力是衡量车辆运行性能的重要参数之一。履带车辆在斜坡上行驶时，重力会造成履带两侧地压力分布不均匀，严重影响车辆的牵引附着力。本研究的目的是研究接触压力分布均匀性对轨道斜坡上牵引力的影响，通过调整车辆重心位置来改变轨道斜坡上接触压力分布均匀性。为了量化轨道地压的分布现象，提出了预测轨道地压分布均匀性的系数。在坡度为5°、10°、15°和20°的平台上进行了试验，结果表明坡度越大，地压分布均匀性和牵引力越差。通过调整车辆重心，提高了地压分布的均匀性。地面压力分布均匀性每增加1%，车辆的牵引力就增加~ 3%。在20°坡度上，重心调整使地压分布均匀性提高17.6%，牵引力提高58.5%。因此，重心调整履带车辆可以大大提高地压力分布的均匀性，从而提高边坡牵引附着力和安全性。研究结果和模式对今后丘陵山区履带车辆的设计和性能评价具有重要的指导意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Biosystems Engineering 农林科学-农业工程

CiteScore

10.60

自引率

7.80%

发文量

239

审稿时长

53 days

期刊介绍： Biosystems Engineering publishes research in engineering and the physical sciences that represent advances in understanding or modelling of the performance of biological systems for sustainable developments in land use and the environment, agriculture and amenity, bioproduction processes and the food chain. The subject matter of the journal reflects the wide range and interdisciplinary nature of research in engineering for biological systems.