Review on Friction and Wear Test Rigs: An Overview on the State of the Art in Tyre Tread Friction Evaluation

Genovese, Andrea; D'Angelo, Gennaro; Sakhnevych, Aleksandr; Farroni, Flavio

doi:10.3390/lubricants8090091

Cited by 23 publications

(10 citation statements)

References 62 publications

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“…Among the many research methods available in the field of tribology [27][28][29], a method called ball-cratering was selected in this experiment. This method is often used to study the tribological properties of materials.…”

Section: Methodsmentioning

confidence: 99%

Impact of Operating Time on Selected Tribological Properties of the Friction Material in the Brake Pads of Passenger Cars

Borawski

2021

Materials

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Braking systems have a direct impact on the safety of road users. That is why it is crucial that the performance of brakes be dependable and faultless. Unfortunately, the operating conditions of brakes during their operating time are affected by many variables, which results in changes in their tribological properties. This article presents an attempt to develop a methodology for studying how the operating time affects the value of the coefficient of friction and the abrasive wear factor. The Taguchi method of process optimization was used to plan the experiment, which was based on tests using the ball-cratering method. The results clearly show that the degree of wear affects the properties of the friction material used in the production process of brakes.

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Section: Methodsmentioning

confidence: 99%

Impact of Operating Time on Selected Tribological Properties of the Friction Material in the Brake Pads of Passenger Cars

Borawski

2021

Materials

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“…The tire is a significant component in cars and aircrafts, it plays a critical role in the safety of passengers, so its durability has received a lot of research attention. In order to evaluate tire durability, the flywheel test was invented, and has become the main way to simulate tire's failure, [1][2][3] avoiding the inconvenience of a real field test on the flat ground. However, due to the curvature of the flywheel, the data obtained by flywheel tire test must have differences compared with the real using stage on flat ground.…”

Section: Introductionmentioning

confidence: 99%

Study of over-examination on tire induced by pressure correction process in flywheel tests

Wang

Chi

Feng

et al. 2022

Journal of Reinforced Plastics and Composites

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In this paper, the strain energy density (SED) is used to study the over-examination to tire in flywheel test induced by pressure correction process. Flywheel test is the main method for evaluating tire durability, which cannot be measured on flat ground due to the variable road conditions. “Pressure Correction” is a necessary step in flywheel tests, but this process can lead to an over-examination of tire durability, which means the tire durability will be underestimated. However, it is impossible to obtain the tire durability from ideal flat ground test, so this paper utilizes the finite element method (FEM) to simulate the tire rolling condition on flat ground and differently sized flywheels, and the SED is used to evaluate the over-examination of tire durability in flywheel test. According to the results, a flywheel with too small diameter has a large amount of over-examination, and the amount caused by a large flywheel is acceptable. This methodology can be a guideline to assess the over-examination on different sized flywheel tests relative to the flat ground, and for the certain tire in this study, flywheels with 3–5 times the tire diameter appear to have an acceptable over-examination.

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“…At present, the research on wet grip performance of tires mainly relies on the two methods of real-vehicle test [1][2][3][4][5][6] and finite element simulation. [7][8][9] In order to coordinate the tire label with the road surface classification, D'Apuzzo et al, 1 used experimental methods to find the correlation between the maximum friction coefficient of SRTT tires and the road pavement IFI.…”

Section: Introductionmentioning

confidence: 99%

“…Todoroff et al 2 proposed an original approach to analyze braking test results, which can break down and quantify the relative importance of the mechanisms involved during this test. Genovese et al 3 updated the overview of the friction testers, and reviewed the development and use of this equipment, gave a global overview of the measurement methodologies, and classified it according to the working and specimen motion principle. Farroni et al 4 proposed an innovative instrument, called VESevo, for viscoelasticity evaluation by means of non-destructive and user-friendly technique.…”

Section: Introductionmentioning

confidence: 99%

A method for tire wet grip performance evaluation based on grounding characteristics

Liang

Shan

Wang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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The wet grip performance of tire is one of the important performances affecting vehicle safety. The steering, acceleration, and braking of the vehicle are directly affected by the grounding characteristics between the radial tire and the ground. In order to study the influence of grounding characteristics of the tire on wet grip performance, ten 205/55R16 tires produced by different manufacturers were selected and tested. The grounding characteristics of the tires were tested using an optical test rig for tire grounding pressure distribution, considering inflation pressure distribution, load and wheel alignment. The tire-road contact area was subdivided into five parts, and 69 parameters were used to describe the grounding characteristics. A software was proposed to process the test results automatically, and 69 grounding characteristic parameters of each tire were obtained. Correlation analysis on tire wet grip performance and grounding characteristics was used for selecting the principal parameters. Finally, eight grounding characteristic parameters related to tire wet grip performance was obtained. Among them are five grounding characteristic parameters (central area rectangle ratio, central area width, internal shoulder length-to-width ratio, external and internal shoulder contact area ratio, external and internal shoulder impression area ratio) which have high correlation to tire wet grip performance, and three grounding characteristic parameters (external shoulder width, external shoulder length-to-width ratio, external and internal shoulder width ratio) which have low correlation to the wet grip performance of the tire. The principal component analysis method was used to analyze the highly correlated grounding characteristic parameters, and the regression equation for evaluating tire wet grip performance was fitted. The comparison of experimental and fitted values show that the errors are within 4%. The result demonstrates that, the method for evaluating wet grip performance of the radial tire through tire-road grounding characteristics was achieved.

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Review on Friction and Wear Test Rigs: An Overview on the State of the Art in Tyre Tread Friction Evaluation

Cited by 23 publications

References 62 publications

Impact of Operating Time on Selected Tribological Properties of the Friction Material in the Brake Pads of Passenger Cars

Impact of Operating Time on Selected Tribological Properties of the Friction Material in the Brake Pads of Passenger Cars

Study of over-examination on tire induced by pressure correction process in flywheel tests

A method for tire wet grip performance evaluation based on grounding characteristics

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