Experimental study on the temperature evolution in the railway brake disc

Oleksandr Jewtuszenko , Michał Kuciej , Piotr Wasilewski

Abstract

Increasing operating speed of modern passenger railway vehicles leads to higher thermal load on the braking system. Organic composite brake pads are poor thermal conductors, hence frictional heat is absorbed mainly by the disc. In this study three brake pad types were tested on the dynamometer. Metallic fibres, steel and copper, were introduced to the formulation of two materials. The third was a non-metallic material – a reference case. Dynamometer test comprised emergency brake applications to determine the frictional characteristics of the materials and constant-power drag braking to analyse the effect of metal fibres on temperature evolution, measured by six thermocouples embedded in the brake disc. Mean friction coefficient is analysed and discussed. It is concluded that conductive fibre in the friction material formulation may influence its tribological characteristics. Despite high thermal conductivity, metal fibres in the concentration tested in this study, did not reduce temperature of the brake disc
Author Oleksandr Jewtuszenko (FME / DMACS)
Oleksandr Jewtuszenko,,
- Department of Mechanics and Applied Computer Science
, Michał Kuciej (FME / DMACS)
Michał Kuciej,,
- Department of Mechanics and Applied Computer Science
, Piotr Wasilewski
Piotr Wasilewski,,
-
Journal seriesTheoretical and Applied Mechanics Letters, ISSN 2095-0349, e-ISSN 2095-0349, (N/A 40 pkt)
Issue year2019
Vol9
No5
Pages308-311
Publication size in sheets0.5
Keywords in EnglishRailway disc brake, Heat partition, Thermal conductivity, Full-scale dynamometer test
ASJC Classification2210 Mechanical Engineering; 2211 Mechanics of Materials; 2500 General Materials Science; 3104 Condensed Matter Physics
DOIDOI:10.1016/j.taml.2019.06.008
URL https://reader.elsevier.com/reader/sd/pii/S209503491930056X?token=85E81AF98808876A0ACE3123674325805F84FD9709A9D9318EC2B168818306113F9549580BAC06CE813DDC61562844A3
Internal identifierROC 19-20
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa - Użycie Niekomercyjne - Bez utworów zależnych (CC-BY-NC-ND); with publication
Score (nominal)40
Score sourcejournalList
ScoreBUT score = 18.0
Ministerial score = 40.0, 12-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.972
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