Effects of age and wear on the stiffness and friction properties of an SUV tyre

Wright, Kraig Richard Shipley; Botha, Theunis R.; Schalk, P.

doi:10.1016/j.jterra.2019.04.001

Cited by 14 publications

(5 citation statements)

References 10 publications

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“…Todoroff et al [26] compared the wet grip performance of worn tires of the same model with new tires and explained the decrease in wet grip ability of worn tires through two aspects: rubber friction and water sliding mechanism. Wright et al [27] found that wear has an impact of approximately 10% on the longitudinal friction of tires. Becker et al [28] studied agricultural large lug tire and found that wear significantly affects the stiffness of the tires.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Effect of Wear on Tire Cornering Characteristics Based on Grounding Characteristics

Zhang

Liu

Zhou

et al. 2023

WEVJ

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Electric vehicles can lead to accelerated tire wear, an inevitable phenomenon during tire usage that can affect the cornering characteristics determining handling stability. In order to simulate tire wear, a finite element model for tire wear was established using the UMESHMOTION subroutine and Arbitrary Lagrangian–Eulerian (ALE) adaptive meshing in ABAQUS, which is based on the Archard theory. The tire’s cornering characteristics were analyzed based on the obtained worn tire. The research results demonstrate that as the wear amount increases, the cornering stiffness and aligning stiffness of the tire also increase. When there are differences in wear on both tire shoulders with the same global wear, the change in cornering stiffness is not significant, while the aligning stiffness exhibits noticeable differences. To explain the above phenomenon, grounding characteristics were incorporated as mediator variables. The analysis results indicate that wear has an impact on the grounding characteristics. Additionally, statistically significant correlations exist between grounding parameters and cornering characteristics. In conclusion, wear affects the tire’s cornering characteristics by changing the grounding characteristics.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Effect of Wear on Tire Cornering Characteristics Based on Grounding Characteristics

Zhang

Liu

Zhou

et al. 2023

WEVJ

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“…According to this review, our research falls under the category of vehicle dynamics-based approaches; specifically, investigating longitudinal dynamics. Furthermore, a noteworthy research study within our scope is [12], which examined the effect of tire age on the slip ratio of a tire. Significant differences in the longitudinal coefficient of friction between new and worn tires were observed in this research.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, there is a lack of studies investigating the effect of tires aged in the field on the coefficient of friction. Additionally, [12] indicated the need for further research to determine the significance of ageing on longitudinal force generation, as well as the potential for conducting studies on different tire types and sizes to observe potential major changes. Therefore, the purpose of this article is to investigate the effect of tire age on the friction coefficient.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Tire Age and Anti-Lock Braking System on the Coefficient of Friction and Braking Distance

Lorenčič

2023

Sustainability

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A technical study of the effects of the use of ABS and the type of road surface on a vehicle’s coefficient of friction when braking at maximum force is presented in this article. It was found that, with ABS, the coefficient of friction was on average 13% higher on dry surfaces and 30% higher on wet surfaces, resulting in a 14.3% reduction in stopping distance on dry surfaces and a 37% reduction on wet surfaces. Measurements were taken with the Vericom VC4000DAQ performance computer, which is a simple method used to measure braking performance on different surfaces with different tires. It was also observed that the friction coefficient decreases with tire age, with a moderate to high correlation between the two variables (age and friction coefficient). However, the model used in the study only explains a moderate amount of variability in the data. An estimate is presented in the article regarding tire wear, indicating that tires used for from five to eight years and driven at 12,000 km per year would wear 0.79–1.33 mm in one year, assuming that the original tread depth of the new tire is about 8–9 mm and the legal minimum tread depth in most European countries for all summer tires is 1.6 mm. The research recommends changing summer tires after six years of use if the driver travels an average of 12,000 km per year, as the tires’ weight decreases by 1.3 kg on average, the tread height decreases by 6 mm on average, and the friction coefficient decreases with age, leading to longer braking distances.

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“…Establishing a tire tread depth that ensures safe driving is problematic because it is not the only factor affecting tire grip to the road surface. Tire ageing changes tread and sidewall hardness, thus negatively influencing stiffness properties and general grip [14]. In addition to tire design features and chemical composition, tire grip strongly depends on driving velocity, road surface type and negative factors such as water, snow, dirt etc.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Road Accident Risk for Vehicle Fleet Based on Statistically Processed Tire Wear Model

Pečeliūnas

Žuraulis

Dróździel

et al. 2022

PROMTT

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The goal of the paper is to investigate the impact of tire tread depth on road accident risk and to develop an accident rate prediction model. The state of 4288 vehicle tires using tread depth gauge was inspected and processed statistically. The tread depth of the most worn tire from each vehicle was registered for further analy-sis. Based on the collected data, a statistical tire tread depth model for an insurance company vehicle fleet had been developed. The conformity of the gamma distribu-tion to the data was verified upon applying the Pearson compatibility criterion. The paper provides the histo-grams of the frequencies of tire tread depths and the theoretical curves of the distribution density. The prob-ability of the accident risk depending on the tire tread depth (adaptive risk index) was calculated applying the formed distributions and risk index dependence on the tire tread depth for the inspected vehicle fleet. Accord-ing to the developed prediction model, an upgrade of the regulation for the minimum allowed tire tread depth by 2 mm (up to 3.6 mm) could reduce road accident risk (caused by poor adhesion to road surface) to 19.3% for the chosen vehicle fleet. Such models are useful for road safety experts, insurance companies and accident cost evaluation specialists by predicting expenses related to insurance events.

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Effects of age and wear on the stiffness and friction properties of an SUV tyre

Cited by 14 publications

References 10 publications

Analysis of the Effect of Wear on Tire Cornering Characteristics Based on Grounding Characteristics

Analysis of the Effect of Wear on Tire Cornering Characteristics Based on Grounding Characteristics

The Effect of Tire Age and Anti-Lock Braking System on the Coefficient of Friction and Braking Distance

Prediction of Road Accident Risk for Vehicle Fleet Based on Statistically Processed Tire Wear Model

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