The Effect of the Tractor Tires Load on the Ground Loading Pressure

Renčín, Lukáš; Polcar, Adam; Bauer, František

doi:10.11118/actaun201765051607

Cited by 7 publications

(5 citation statements)

References 3 publications

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“…Experimental studies of changes in the soil response from changes in the traction load on the hook of a wheeled tractor (Polcar et al, 2017) showed that with the traction resistance of the working tool in the range from 55 kPa to 70 kPa, there is a decrease in the pressure on the ground of the front axle and an increase in the pressure of the rear axle by an amount of 6 to 8 %. Similar results of pressure redistribution between the axles of wheeled running systems in the presence of traction load from a working machine are noted in studies (Patil, 2015;Renčín et al, 2017). Analysis of completed studies (Polcar et al, 2017;Patil, 2015;Renčín et al, 2017) allows concluding that if there is a traction resistance of a working machine on the tractor hook, the front axle of the tractor is unloaded and the load of the rear axle increases.…”

Section: Introductionsupporting

confidence: 59%

“…Similar results of pressure redistribution between the axles of wheeled running systems in the presence of traction load from a working machine are noted in studies (Patil, 2015;Renčín et al, 2017). Analysis of completed studies (Polcar et al, 2017;Patil, 2015;Renčín et al, 2017) allows concluding that if there is a traction resistance of a working machine on the tractor hook, the front axle of the tractor is unloaded and the load of the rear axle increases.…”

Section: Introductionsupporting

confidence: 59%

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Modeling of the Running System Pressure on the Soil Depending on the Structural Parameters of the Tractors

GOLUB,

CHUBA,

ACHKEVYCH

et al. 2023

INMATEH

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The article defines the influence of the traction resistance of the machine-tractor unit working tool on the weight distribution of the tractor along the running system axles. Depending on the type of field work, the resistance force of tools aggregated with a tractor has a different value, accordingly, the tractor has a different weight distribution along the axles and, thus, different ground pressure. An increase in pressure on the soil leads to additional costs for tillage, and in the future to a decrease in agricultural production efficiency. The article presents a mathematical model for determining the reactions of the soil, and, accordingly, the pressure of tractor engines on the ground, depending on the structural parameters of the tractor, its adequacy estimation, and an example of calculating the weight distribution along the tractor axles.

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Section: Introductionsupporting

confidence: 59%

Section: Introductionsupporting

confidence: 59%

Modeling of the Running System Pressure on the Soil Depending on the Structural Parameters of the Tractors

GOLUB,

CHUBA,

ACHKEVYCH

et al. 2023

INMATEH

View full text Add to dashboard Cite

show abstract

“…A second option for developing a direct model of the tire-rim interaction was to simulate it through a FEM model of the entire wheel, where information about the contact pressure distribution on the tire-rim interface [20]- [22] was sought. However, this approach was affected by many limitations, since accurate information on the design of the tire were not available [23], [24]. Even nowadays, tire structure modelling and analysis represent a challenging operation as non-linearity occurs in the material properties as well as in the contact boundary conditions.…”

Section: Experimental Modelmentioning

confidence: 99%

Development of a FEM procedure for evaluating the pressure profile in the industrial wheel and fatigue strength analyses

Danzi,

Solazzi,

Cima

2024

J Appl Eng Science

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Industrial wheels are heavily loaded components that undergo severe cyclic stress conditions. Thus, the design of the rims must include a wide fatigue study which articulates in laboratory and field tests, analytical and numerical analyses and comparison of the experimental and computational results. This paper presents the study approach applied in the study of a 25 in rim for earth-moving machines manufactured by Moveero. The rim was subject to a design update which provided the reduction of the thickness from 11 mm to 9 mm. We decided to study the interaction tire-rim because it’s a critical zone. The failures affected the area of the seat radius of the fixed flange of the rim, which resulted to be the most stressed part of the rim because of the bending actions of the tire on the flange. In order to deepen the cyclic mechanical behaviour of the component, laboratory inflation and rolling tests were carried out in Woodridge USA considering several combinations of inflation pressure and radial load applied to the wheel. The strain data from the tests were analysed to develop a reverse empirical model for the contact pressure between tire and rim. Once the load diagram applied to the flange for each test was estimated, FEM static simulations could be performed on a 3D model of the rim through SolidWorks Simulation. The stress fields obtained were then used for fatigue FEM numerical analyses which could return an evaluation of the predicted life of the component under several load conditions.

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“…Tire–road contact pressure distribution testing methods include pressure cell, triaxial load pin, piezoelectric sensor, and pressure-sensitive film [ 29 , 30 , 31 ]. The accuracy of tire grounding characteristic measurements is affected by the sensors’ size, spacing, and sensitivity between the tire and the ground.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Contact Characteristics of Tires–Roads Based on Pressure-Sensitive Film Technology

Chen,

Ding,

Wei

et al. 2023

Materials

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Tire–road characteristics are a critical focus of research in the automotive and transportation industries. On the one hand, the research can help optimize tires’ structural design; on the other hand, it can analyze the mechanical response of the pavement structure under the vehicle load. In addition, the non-uniformity distribution of the tire ground stress will also have a direct impact on the skid resistance, which determines the driving safety. Due to the limitation of testing technology, the measurement of tire ground pressure was mainly carried out on a flat test platform, ignoring the roughness of the actual pavement surface texture. The tire–road contact characteristics research on the macro-texture and micro-texture of asphalt pavement needs to be broken through. A high-precision pressure-sensitive film measurement system is utilized to examine the actual contact characteristics between two types of automobile tires and three types of asphalt pavement in this paper. The influence law of pavement texture and patterned tires on the contact area and stress was explored, and the concentration effect of tire–road contact stress was evaluated. The results indicate that the contact area of grounding tires exhibits a nearly linear relationship with tire inflation pressure and load. Notably, the change in load has a more significant influence on the contact area than tire inflation pressure. On asphalt pavement, the contact reduction rate decreases by approximately 5–10% for block pattern tires and 10–15% for longitudinal pattern tires. Furthermore, as the texture depth of the pavement increases, the contact area between tires and the pavement texture decreases. The actual tire–road interface experiences significant stress concentration due to the embedding and meshing effects between the tire and road surface. Even on a flat steel surface, the peak stress at the edge of the tread block exceeds the 0.7 MPa design load, which is about 2.5–3 times higher than the design uniform load. The peak stress between the tire and asphalt pavement reaches 4–10 times the design uniform load, with a rising trend as the pavement texture depth increases. This study can provide relevant experimental technical support for tire design and functional design of asphalt pavement.

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The Effect of the Tractor Tires Load on the Ground Loading Pressure

Cited by 7 publications

References 3 publications

Modeling of the Running System Pressure on the Soil Depending on the Structural Parameters of the Tractors

Modeling of the Running System Pressure on the Soil Depending on the Structural Parameters of the Tractors

Development of a FEM procedure for evaluating the pressure profile in the industrial wheel and fatigue strength analyses

A Study on the Contact Characteristics of Tires–Roads Based on Pressure-Sensitive Film Technology

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