Dynamic ground pressure prediction of heavy-duty construction vehicles considering crawler parameters

Pei, Tiangang; Yan, Bijuan; Li, Yi; Zhao, Zhangda

doi:10.1007/s40430-023-04076-2

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…In recent years, multi-body dynamics software has provided convenience for solving the dynamics of tracked vehicles. For example, Pei [15] used RecurDyn to obtain the dynamic ground pressure of the crawler walking mechanism, and the influence of track parameters on ground-specific pressure was studied in detail. Zhou [16] tested the reconfigurable wheelcrawler walking mechanism by using RecurDyn V9R3 software, the interaction of the grouser parameters was further clarified, and the regression equation of the traction force of the walking mechanism was obtained.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Contact Characteristics Analysis of Heavy-duty Track Rollers

Yan,

Zhang,

Zhang

et al. 2024

Int. J. Automot. Mech. Eng.

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As an important component of the crawler walking device, the track roller needs to withstand strong impact and is prone to failure, which can lead to serious economic losses. This paper focuses on the track roller of the spreader as the research subject and investigates the dynamic contact characteristics between the track roller and the track plate. Using RecurDyn software, a virtual prototype model of the crawler walking device is established to analyze the variation in a vertical dynamic load of the track roller under different working conditions. Simultaneously, a finite element model of the contact between the track roller and the track plate is developed using Ansys Workbench, and its accuracy is verified using Hertz contact theory. Finally, the study discusses various influencing factors on the contact characteristics, including load, curvature of the contacting bodies, and material yield strength. The results indicate that the track rollers experience the highest dynamic load when climbing a slope, reaching a maximum load of 1191.44 kN. Moreover, the maximum contact stress is 1750.4 MPa, and the maximum Mises stress is 921.34 MPa during this operation. Importantly, when the load reaches 1218 kN, the maximum Mises stress of the track roller is 930.2 MPa, which may lead to roller failure after prolonged use. These findings provide valuable insights for the design and optimization of heavy-duty track rollers and offer significant assistance for various tracked vehicles.

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Section: Introductionmentioning

confidence: 99%

Dynamic Contact Characteristics Analysis of Heavy-duty Track Rollers

Yan,

Zhang,

Zhang

et al. 2024

Int. J. Automot. Mech. Eng.

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“…1). There are models that take into account parts of the caterpillar [7][8]. However, for the most part, they are based on using the finite element method [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Kinematic and force patterns of interaction of a link caterpillar of a transport machine with the ground

Dobretsov,

Troyanovskaya,

Voinash

et al. 2023

FME Transactions

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This article proposes a mathematical model of a caterpillar track's force and kinematic interaction with the ground during movement. The presence of a positive displacement of caterpillar tracks was proved even in the absence of slipping. This displacement causes the soil to be sheared and thrown out of the area of contact with the caterpillar. The change in the rotation angles of the tracks and the magnitude of their longitudinal displacement were obtained. A drop in the tension force of the caterpillar track was detected on the active section of the supporting surface between the first and second track wheels. The relationships between the main geometric parameters of the caterpillar track, the vertical load on the track wheels, and the movement of the tracks when the track wheels roll over them are established. Practical recommendations are proposed that contribute to the damping of vibrations when the track roller passes over the caterpillar track.

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Dynamic ground pressure prediction of heavy-duty construction vehicles considering crawler parameters

Cited by 2 publications

References 13 publications

Dynamic Contact Characteristics Analysis of Heavy-duty Track Rollers

Dynamic Contact Characteristics Analysis of Heavy-duty Track Rollers

Kinematic and force patterns of interaction of a link caterpillar of a transport machine with the ground

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