Analytical Determination of the Brake Temperature Mode During Repetitive Short-Term Braking
An algorithm to determine the maximum temperature of brake systems during repetitive short-term (RST) braking mode has been proposed. For this purpose, the intermittent mode of braking was given in the form of a few cyclic stages consisting of subsequent braking and acceleration processes. Based on...
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doaj-a3aea47668444007846d8548223a78be2021-04-11T23:02:19ZengMDPI AGMaterials1996-19442021-04-01141912191210.3390/ma14081912Analytical Determination of the Brake Temperature Mode During Repetitive Short-Term BrakingAleksander Yevtushenko0Katarzyna Topczewska1Michal Kuciej2Faculty of Mechanical Engineering, Bialystok University of Technology (BUT), 45C Wiejska Street, 15-351 Białystok, PolandFaculty of Mechanical Engineering, Bialystok University of Technology (BUT), 45C Wiejska Street, 15-351 Białystok, PolandFaculty of Mechanical Engineering, Bialystok University of Technology (BUT), 45C Wiejska Street, 15-351 Białystok, PolandAn algorithm to determine the maximum temperature of brake systems during repetitive short-term (RST) braking mode has been proposed. For this purpose, the intermittent mode of braking was given in the form of a few cyclic stages consisting of subsequent braking and acceleration processes. Based on the Chichinadze’s hypothesis of temperature summation, the evolutions of the maximum temperature during each cycle were calculated as the sum of the mean temperature on the nominal contact surface of the friction pair elements and temperature attained on the real contact areas (flash temperature). In order to find the first component, the analytical solution to the one-dimensional thermal problem of friction for two semi-spaces taking into account frictional heat generation was adapted. To find the flash temperature, the solution to the problem for the semi-infinite rod sliding with variable velocity against a smooth surface was used. In both solutions, the temperature-dependent coefficient of friction and thermal sensitivity of materials were taken into account. Numerical calculations were carried out for disc and drum brake systems. The obtained temporal variations of sliding velocity, friction power and temperature were investigated on each stage of braking. It was found that the obtained results agree well with the corresponding data established by finite element and finite-difference methods.https://www.mdpi.com/1996-1944/14/8/1912repetitive short-term brakingfrictional heatingtemperaturethermal sensitivity of materialsfriction coefficient |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Aleksander Yevtushenko Katarzyna Topczewska Michal Kuciej |
spellingShingle |
Aleksander Yevtushenko Katarzyna Topczewska Michal Kuciej Analytical Determination of the Brake Temperature Mode During Repetitive Short-Term Braking Materials repetitive short-term braking frictional heating temperature thermal sensitivity of materials friction coefficient |
author_facet |
Aleksander Yevtushenko Katarzyna Topczewska Michal Kuciej |
author_sort |
Aleksander Yevtushenko |
title |
Analytical Determination of the Brake Temperature Mode During Repetitive Short-Term Braking |
title_short |
Analytical Determination of the Brake Temperature Mode During Repetitive Short-Term Braking |
title_full |
Analytical Determination of the Brake Temperature Mode During Repetitive Short-Term Braking |
title_fullStr |
Analytical Determination of the Brake Temperature Mode During Repetitive Short-Term Braking |
title_full_unstemmed |
Analytical Determination of the Brake Temperature Mode During Repetitive Short-Term Braking |
title_sort |
analytical determination of the brake temperature mode during repetitive short-term braking |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2021-04-01 |
description |
An algorithm to determine the maximum temperature of brake systems during repetitive short-term (RST) braking mode has been proposed. For this purpose, the intermittent mode of braking was given in the form of a few cyclic stages consisting of subsequent braking and acceleration processes. Based on the Chichinadze’s hypothesis of temperature summation, the evolutions of the maximum temperature during each cycle were calculated as the sum of the mean temperature on the nominal contact surface of the friction pair elements and temperature attained on the real contact areas (flash temperature). In order to find the first component, the analytical solution to the one-dimensional thermal problem of friction for two semi-spaces taking into account frictional heat generation was adapted. To find the flash temperature, the solution to the problem for the semi-infinite rod sliding with variable velocity against a smooth surface was used. In both solutions, the temperature-dependent coefficient of friction and thermal sensitivity of materials were taken into account. Numerical calculations were carried out for disc and drum brake systems. The obtained temporal variations of sliding velocity, friction power and temperature were investigated on each stage of braking. It was found that the obtained results agree well with the corresponding data established by finite element and finite-difference methods. |
topic |
repetitive short-term braking frictional heating temperature thermal sensitivity of materials friction coefficient |
url |
https://www.mdpi.com/1996-1944/14/8/1912 |
work_keys_str_mv |
AT aleksanderyevtushenko analyticaldeterminationofthebraketemperaturemodeduringrepetitiveshorttermbraking AT katarzynatopczewska analyticaldeterminationofthebraketemperaturemodeduringrepetitiveshorttermbraking AT michalkuciej analyticaldeterminationofthebraketemperaturemodeduringrepetitiveshorttermbraking |
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1721530496515571712 |