Title: Research on the influence of heavy-duty tracked vehicles parameters on steering driving process

Authors: Tian-Gang Pei; Bi-Juan Yan; Hao Dong; Ze-Kun Liu; Zhang-Da Zhao

Addresses: Mechanical Engineering College, Taiyuan University of Science and Technology, Taiyuan, 030024, China ' Mechanical Engineering College, Taiyuan University of Science and Technology, Taiyuan, 030024, China ' Mechanical Engineering College, Taiyuan University of Science and Technology, Taiyuan, 030024, China ' Mechanical Engineering College, Taiyuan University of Science and Technology, Taiyuan, 030024, China ' Mechanical Engineering College, Taiyuan University of Science and Technology, Taiyuan, 030024, China

Abstract: As an important part of the heavy-duty tracked vehicle, the position and posture of crawler travelling device have a certain impact on the vehicle performance. The Bekker soil sinking theory is used in this study to create the heavy-duty tracked vehicle dynamics analysis model under turning conditions on soft soil roads. The effects of working arm position, turning radius R, track grounding width-length ratio b/L and track centre distance B on vehicle driving force, driving power, and steering resistance moment were investigated using a heavy-duty vehicle as an example. Track sliding and ground shear deformation were taken into consideration. The findings demonstrate that when the turning radius R is close to B/2, the driving power is almost 0 and the inside steering resisting moment and driving force are concentrated. When R = B/2, the vehicle is in the unilateral power steering. What's more, the study can provide theoretical support for heavy tracked vehicles design.

Keywords: heavy-duty tracked vehicles; steering process; drive performance; grounding pressure; instantaneous centre offset.

DOI: 10.1504/IJHVS.2024.137252

International Journal of Heavy Vehicle Systems, 2024 Vol.31 No.2, pp.267 - 288

Received: 16 Jan 2023
Accepted: 22 May 2023
Published online: 07 Mar 2024 *

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