Agricultural tyre stiffness change as a function of tyre wear

Becker, Carl; Schalk, P.

doi:10.1016/j.jterra.2022.04.001

Cited by 8 publications

(5 citation statements)

References 10 publications

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“…The results of a typical virtual experiment for a full tyre are shown in Figure 3.2 where the displacement is 30mm and the tyre is inflated to 80kPa. Experiments have already been conducted at 80kPa and 200kPa for the tyre that this study is based on (Becker and Els, 2022), and as such these pressures will be used for the investigations that follow. From the cross-section of the tyre shown in Figure 3.2a it is clear that the section that is in contact with the road appears similar to the virtual experiment in Section 3.3.1 but the bottom of the tyre is flat against the road, which is due to the inflation pressure which prevents the bulging phenomenon.…”

Section: Full Geometry Modelmentioning

confidence: 99%

“…with the tread lugs shaven off as acquired by Becker and Els (2022). In this test the tyre was inflated and then subsequently pressed against a smooth steel plate on a large tyre testing rig, where displacements were applied slowly so as to approximate a quasi-static loading condition.…”

Section: Validationmentioning

confidence: 99%

“…There was no friction enabled in FEM so the boundary conditions between the simulation and experiment are not the same, however Becker and Els (2022) shows that friction has very little influence over the vertical characteristics. As such one can assume that the virtual experiment still closely resembles a real experiment where there is no friction between the tyre and the steel plate.…”

Section: Validationmentioning

confidence: 99%

See 2 more Smart Citations

External Tyre Loading Predictions from Inner Tyre Deformation Measurements

Gast

Schalk

Wilke

et al. 2022

Vehicle and Automotive Engineering 4

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show abstract

Section: Full Geometry Modelmentioning

confidence: 99%

Section: Validationmentioning

confidence: 99%

Section: Validationmentioning

confidence: 99%

See 1 more Smart Citation

External Tyre Loading Predictions from Inner Tyre Deformation Measurements

Gast

Schalk

Wilke

et al. 2022

Vehicle and Automotive Engineering 4

View full text Add to dashboard Cite

show abstract

“…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. Nantapuk et al [29] conducted a study comparing new tires with tires that had covered a distance of 50,000 km and observed an increase in the stiffness and energy absorption of the used 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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“…An attribute such as tire vertical rigidity, determined by the ratio of vertical force to vertical displacement, has been revealed to exert influence over ride comfort and vertical vibration characteristics [4][5][6]. Rubber, indispensable to tire construction and noted for its complexity, has been reported to be susceptible to deterioration under suboptimal conditions, and its incompressible nature has been observed to pose modelling challenges when utilising conventional finite element methods.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Vehicle Performance Through Nonlinear Finite Element Analysis of Tyre-Soil Interaction

Aliramezani,

Tashi

2023

MITS

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In this investigation, critical insights into the complex interactions between tyres and soil are explored through the utilization of nonlinear finite element analysis (FEA), bearing significant implications for vehicle dynamics, safety, and performance. Maximal shear stress values, identified through shear stress analyses, reveal a peak of 8.4 MPa in the tyre-road contact region and an approximately uniform shear stress of 1.703 MPa in alternative areas, laying the foundation for advancements in tyre design optimisation. It was demonstrated that tyre designs necessitate optimisation to specific ground materials to fulfil essential traction requirements and preclude sinking. For interfaces involving soil and neoprene rubber, the contact status at the mid-section zone was observed to be in a sticking condition, transitioning to sliding as the observation point moved away from the centre. The research highlighted that through nonlinear analysis, accurate predictions of tyre behaviour under fluctuating loads can be achieved, thereby aiding in the formulation of designs for more fuel-efficient tyres and enhanced wet-weather handling. However, the study recognises the constraints imposed by simplifications within the tyre model, omission of dynamic behavioural factors, and assumptions regarding unvarying friction coefficients. While the analysis was confined to particular material models and validation was executed primarily via numerical simulations, findings affirm that strategic application of nonlinear FEA elucidates pivotal factors in tyre-soil interaction, propelling the establishment of safer and more performance-oriented vehicle models.

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Agricultural tyre stiffness change as a function of tyre wear

Cited by 8 publications

References 10 publications

External Tyre Loading Predictions from Inner Tyre Deformation Measurements

External Tyre Loading Predictions from Inner Tyre Deformation Measurements

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

Enhanced Vehicle Performance Through Nonlinear Finite Element Analysis of Tyre-Soil Interaction

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