Digital image correlation techniques for measuring tyre-road interface parameters: Part 1 – Side-slip angle measurement on rough terrain

Botha, Theunis R.; Schalk, P.

doi:10.1016/j.jterra.2015.04.004

Cited by 19 publications

(6 citation statements)

References 16 publications

(15 reference statements)

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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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“…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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“…Tuononen 9 measured the motion state and local friction coefficient of tread blocks under the condition of low-speed rolling based on digital image correlation method. Botha and Els 10,11 obtained the ground speed and the tread speed of the tire by photographing the contact area of the tire, realized the measurement of the longitudinal slip rate, and obtained the side slip angle of the rolling tire on the rough road according to the method of overlapping images. Galeazzi et al 12 applied the 3D digital image correlation method to the vibration measurement of tires and compared its results with laser Doppler vibrometer to verify its feasibility.…”

Section: Introductionmentioning

confidence: 99%

Tire deformation measurement technology based on digital image correlation method

Liang

Shen

Shan

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part D:

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The contact between the tire and the road surface causes tread deformation, and using traditional methods to measure tire tread deformation is difficult and time-consuming. Therefore, based on the principle of the digital image correlation method, this paper develops a binocular vision measurement system and realizes the measurement of tire tread deformation through the test bench for tire ground pressure distribution measurement. The related programs of the measurement system, including camera calibration, image matching, and strain fitting, are proposed. The deformation measurement accuracy of the test bench is validated by the sprayed speckle rubber sheet test, and the relative error of the theoretical value and measurement value is within 2%. The tire tread deformation test under static loading conditions was carried out using the test bench, and the tread strain distribution in the contact area was obtained. The analysis of the test results shows that the strain distribution in the contact patch is axisymmetric under static loading conditions. The longitudinal (tire rolling direction) deformation of the tread at the leading edge and the trailing edge area of the contact patch has the largest strain, while the deformation of the shoulder area on both sides of the contact patch is relatively small. For lateral (tire axial direction) deformation, the leading edge and the trailing edge areas of the contact patch are less deformed, and the strain distribution is approximately axisymmetric. The shoulder area of the contact surface has a larger deformation. The tire’s outer shoulder area has a larger deformation than the inside shoulder area, which may be due to the asymmetric tread structure of the tire. For the vertical deformation of the tread, the central area of the tread has the smallest strain, while the surrounding area has a much larger vertical strain.

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Digital image correlation techniques for measuring tyre-road interface parameters: Part 1 – Side-slip angle measurement on rough terrain

Cited by 19 publications

References 16 publications

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

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

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

Tire deformation measurement technology based on digital image correlation method

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