Abstract
Tracked vehicles during steering are always subjected to track slippage relative to the ground. Studies show that an excessive slippage coefficient reduces the steering ability of tracked vehicles and increases the risk of soil shear failure. Accordingly, fast and accurate tests of the slippage coefficient of tracked vehicles under different ground conditions can be effectively referenced to select track parameters and reach optimal operation. Aiming to resolve shortcomings of the conventional testing method in determining the slippage coefficient of tracked vehicles, a novel method is proposed in the present study. Then the trajectory of an arbitrary point on the tracked vehicle during steering was analyzed. Moreover, the time of vehicles steering around and the speed of track sprocket were measured, and the slippage coefficient of tracked vehicles steering on the specific ground condition was determined. Meanwhile, the slippage coefficient of the tracked combined harvester steering under different ground conditions was explored using the conventional method. The obtained results were compared quantitatively, and the accuracy of the established model was verified. The performed analyses demonstrate that the proposed method has a simple structure and can be effectively applied to various complicated working conditions. This method is expected to lay a theoretical basis to establish an online testing system for the slippage coefficient of tracked vehicles during steering.
Highlights
In the steering process of tracked vehicles, the vehicle track is constantly accompanied by slippage relative to the ground
Performing rapid and accurate tests on the slippage coefficient of tracked vehicles during steering is of significant importance for selecting the track parameters and optimal operating conditions under different working conditions
It is observed that the relative error between the average slip coefficient of the track calculated by the proposed model and the average measured using the conventional method is 5.7%-11.9%, which is within a reasonable range
Summary
In the steering process of tracked vehicles, the vehicle track is constantly accompanied by slippage relative to the ground. This phenomenon, which reduces the maneuverability of tracked vehicles compared to the theoretical maneuverability, can be classified by different degrees of slip and track skids on both sides under different ground conditions [1]–[5]. Studies show that excessive slippage coefficient directly affects the safety, steering stability, and operating efficiency of tracked vehicles [6]– [9]. The operation of vehicle tracks is limited to the optimal range of slippage coefficient to reach reasonable drive efficiency and steering stability. Performing rapid and accurate tests on the slippage coefficient of tracked vehicles during steering is of significant importance for selecting the track parameters and optimal operating conditions under different working conditions
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call