Digital image correlation techniques for measuring tyre–road interface parameters: Part 2 – Longitudinal tyre slip ratio measurement

Botha, Theunis R.; Schalk, P.

doi:10.1016/j.jterra.2015.05.003

Cited by 15 publications

(6 citation statements)

References 15 publications

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“…When slip (longitudinal and lateral) is present in the tire-terrain interface, accurate slip measurement is also of utmost importance. Using digital image correlation techniques, Botha and Els (Botha and Els, 2015a), Botha and Els (Botha and Els, 2015b), developed a measurement capability that can directly measure the longitudinal and lateral slip conditions in the tire-terrain interface. Johnson, Botha and Els (Johnson et al, 2017) extended this approach to measure…”

Section: Sinkage and Slip Measurementmentioning

confidence: 99%

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Review of terramechanics models and their applicability to real-time applications

Sandu

Khan

et al. 2019

Journal of Terramechanics

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ISTVS embarked on a project in 2016 that aims at updating the current ISTVS standards related to nomenclature, definitions, and measurement techniques for modelling, parameterizing, and, respectively, testing and validation of soft soil parameters and vehicle running gear-terrain interaction. As part of this project, a comprehensive literature review was conducted on the parameterization of fundamental terramechanics models. Soil parameters of the empirical models to assess off-road vehicle mobility, and parameters of the models to characterize the response of the terrain interacting with running gears or plates from the existing terramechanics literature and other researchers' reports were identified. This review documents and summarizes the modelling approaches that may be applicable to real-time applications of terramechanics in simulation, as well as in controller design.

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Section: Sinkage and Slip Measurementmentioning

confidence: 99%

“…wheel slip, rut depth, slip angle, etc. (Botha and Els, 2015a), (Botha and Els, 2015b), (Johnson et al, 2017) c) can be -previewed‖ or obtained from a detailed terrain map (e.g. terrain profile, slope etc.)…”

Section: Introductionmentioning

confidence: 99%

Review of terramechanics models and their applicability to real-time applications

Sandu

Khan

et al. 2019

Journal of Terramechanics

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“…The author also highlights that there is a lag between the actual longitudinal slip at the tyreterrain contact and the slip at the axle during repetitive braking. For this reason the tyre slip-ratio for contact force analysis should be captured by measuring tyre tread speed and ground speed at the contact patch (Botha and Els, 2015). Determination of the tyre slip-ratio directly by using digital image correlation techniques avoids the uncertainties caused by measuring inaccuracies of vehicle speed and tyre roll radius due to terrain roughness.…”

Section: Terrain Surface Influence On Wheel Speed and Slip Estimationmentioning

confidence: 99%

ABS braking on rough terrain

Merwe

Schalk

Žuraulis

2018

Journal of Terramechanics

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“…Literature 15 analyzed the friction characteristics of tire in the torsion process by building a tread torsion test rig, and determined the boundary point of tire contact area from stick-slip to full slip. Theunis and Botha 16,17 achieved non-contact measurements of lateral deflection angle and longitudinal slip rate of rolling tire under low-speed rolling conditions by means of digital image correlation.…”

Section: Introductionmentioning

confidence: 99%

Effect of carbon black components on rolling mechanical properties of tread rubber material by using improved digital image correlation

et al. 2023

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The rolling and sliding state of the tread rubber material within contact patch was very important to the handling stability and safety of the vehicle. In this paper, first, the absolute coordinate system was introduced into the digital image correlation method, which improved the ability of the traditional digital image correlation method to solve the large deformation of polymer material surface. Second, a new calculation method of rolling friction coefficient based on the brush model was proposed. Third, a non‐contact full‐field rolling dynamics experimental device was developed to study the effects of carbon black components, rotational speed and vertical load on the rolling mechanical characteristics of tread rubber material. On this basis, the rolling mechanical characteristics of tread rubber material with different formulations were obtained by analyzing the distribution properties of global strain rate, full‐field longitudinal speed and full‐field longitudinal acceleration and the variation laws of transverse/longitudinal strain rate, trajectory of marked points, stress‐strain hysteresis curve and rolling friction coefficient. Finally, the influence mechanism of carbon black composition on rolling mechanical properties of tread rubber material was revealed.

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Digital image correlation techniques for measuring tyre–road interface parameters: Part 2 – Longitudinal tyre slip ratio measurement

Cited by 15 publications

References 15 publications

Review of terramechanics models and their applicability to real-time applications

Review of terramechanics models and their applicability to real-time applications

ABS braking on rough terrain

Effect of carbon black components on rolling mechanical properties of tread rubber material by using improved digital image correlation

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