Indirect assessment of the rolling resistance of a car tire in the starting mode of motion

Karpenko, Volodymyr; Voropay, Alexey; Neskreba, Eduard

doi:10.30977/at.2019-8342.2022.50.0.01

Cited by 2 publications

(5 citation statements)

References 1 publication

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“…It is worth noting that the dependence (Fig. 9) is closer to the results of determining the rolling resistance coefficient obtained in [2]. It can also be said that the general trend of change in rolling resistance is quite obvious (as the internal pressure increases, the rolling resistance coefficient decreases).…”

Section: Evaluation Of the Rolling Resistance Of A Car Tiresupporting

confidence: 78%

“…), that is, in other words, it can be said that the presence of the starting period of movement is not taken into account. In previous works [1][2], it was already proven that in the period from the start of movement (on "cold" tires) to the stabilization of the operational characteristics of the tire, the internal pressure and temperature change quite significantly (by approximately 20-35%), and accordingly other properties of the car tire also change.…”

Section: Discussionmentioning

confidence: 99%

“…It should be recalled that this work is a continuation of the scientific work [2], which presents the methods of indirect assessment of the rolling resistance of a car tire during the start-up period. The work [2] also presents the results of experimental studies of changes in the internal pressure of the gas filler and the temperature of the tire.…”

Section: Analysis Of Publicationsmentioning

confidence: 99%

“…This confirms the well-known statement that it is necessary to replace summer tires with winter tires in a timely manner (when the ambient temperature can reach +5 o C and below), thanks to this, road safety can be significantly increased. As a result of an indirect assessment, it was established that the rolling resistance during the starting movement changes by approximately 15% [2]. But still, it is worth noting that during the indirect assessment, not all the physical and mechanical properties of the investigated tires were indicated.…”

Section: Analysis Of Publicationsmentioning

confidence: 99%

“…At this time, the main characteristics of the tire change, such as the internal pressure of the gas filler (mainly air), the temperature of the tire, etc. [1][2].…”

Section: Introductionmentioning

confidence: 99%

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Refined assessment of tire rolling resistance in the starting mode

Batygin

Neskreba²

2022

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Problem. Rolling resistance is one of the most important operational characteristics of a car tire. First of all, the fuel consumption, durability and service life of the tire depend on the rolling resistance. Of course, the higher the rolling resistance, the faster and more intensively the tire will wear out. Also, car braking parameters, such as deceleration and, accordingly, the braking distance, may indirectly depend on the rolling resistance characteristics. In turn, rolling resistance is influenced by the properties of the tire itself, as well as the condition of the road surface and weather conditions. It is especially important to evaluate the operational characteristics of a car tire in the starting period of movement, because at this time the behaviour of the tire is unpredictable. Goal. The purpose of this work is to improve the methodology for evaluating the rolling resistance of a car tire in the starting period of movement. Knowing how the rolling resistance changes during the starting movement, it is possible to evaluate the operational properties of the car. Methodology. Refined assessment is carried out with the help of dependencies obtained in previous scientific works. But in order for the result of the rolling resistance assessment to be correct, it is necessary to determine the necessary characteristics of the tire. Namely, we are talking about the characteristics of radial stiffness. In the work, these characteristics are determined both by conducting experimental studies and by using FEM. Results. Thanks to the conducted research, significant results were obtained on the change in rolling resistance during the starting motion. It was established that with an increase in internal pressure from 0.17 MPa to 0.225 MPa, as a result of the starting motion, the rolling resistance decreases by approximately 20-25%. Originality. From the analysis of the literature, it can be concluded that in most of the studied works, the peculiarities of the interaction of automobile tires with the supporting surface in the starting period are not taken into account during various studies. It can be said that the originality of this work, on the one hand, is that the rolling resistance is investigated during the starting motion, and on the other hand, that its assessment is carried out both on the basis of the results of experimental studies and with the help of FEM. Practical value. In this work, it is possible to highlight the obtained results, thanks to which we can estimate the rolling resistance of a car tire with sufficient accuracy. The methods of determining the operational characteristics of a car tire, presented in the work, can be used during its operation and at the design stage.

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Section: Evaluation Of the Rolling Resistance Of A Car Tiresupporting

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Analysis Of Publicationsmentioning

confidence: 99%

Section: Analysis Of Publicationsmentioning

confidence: 99%

“…At this time, the main characteristics of the tire change, such as the internal pressure of the gas filler (mainly air), the temperature of the tire, etc. [1][2].…”

Section: Introductionmentioning

confidence: 99%

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Refined assessment of tire rolling resistance in the starting mode

Batygin

Neskreba²

2022

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Features of a High-Stiffness Tire Interaction with a Bearing Surface During the Starting Period of Motion

Karpenko,

Voropay,

Czerepicki

et al. 2024

JES

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The article emphasizes the importance and necessity of studying the behavior of automobile tires during operation in the starting mode, from the beginning of driving on “cold” tires to stabilizing its temperature and internal pressure. During this period, the main performance characteristics of the tire can change in a relatively wide range. Therefore, the main focus was on the initial period of driving as the most dangerous from the point of view of predicting the behavior of automobile tires. This article presents the results of analyzing a car tire’s condition and behavior during the starting movement. Features of the main parameter for assessing the stiffness characteristics of the tires were investigated. The research was conducted under conditions of low ambient temperatures during the operation of automobile tires. A numerical-analytical approach was used to estimate the stiffness parameters. Simultaneously, the initial data required for a correct analysis were obtained from the experimental results in actual road conditions. The obtained results allow for providing recommendations on the peculiarities of the automobile tires’ operation under adverse conditions, such as low ambient temperatures.

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Indirect assessment of the rolling resistance of a car tire in the starting mode of motion

Cited by 2 publications

References 1 publication

Refined assessment of tire rolling resistance in the starting mode

Refined assessment of tire rolling resistance in the starting mode

Features of a High-Stiffness Tire Interaction with a Bearing Surface During the Starting Period of Motion

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