Wear of brake blocks for in-service conditions-Influence of the level of modelling
Artikel i vetenskaplig tidskrift, 2014

Wear of brake blocks at tread braking of railway wheels is one of the key factors that control the time period between scheduled train maintenance and hence has a substantial impact on the life cycle cost of the vehicle. Wear simulations using two different numerical models, one thermal model and one thermoelastic model, are presented implementing wear rates for some brake block materials exploiting results from previously performed temperature-controlled pin-on-disc tests. It is found that the thermal model and the thermoelastic model give the same wear for cases when thermoelastic instability effects are small. However, for cases when the thermoelastic effects increase the local contact pressures and surface temperatures, large differences are found.

MATERIALS SCIENCE

MULTIDISCIPLINARY

Multidisciplinary

Railway

TEMPERATURES

SPEED

Tread brakes

PART 2

Brake materials

MECHANICAL

Engineering

Mechanical

High temperature

Materials Science

Sliding wear

RAILWAY TREAD BRAKING

ENGINEERING

Författare

Tore V Vernersson

Dynamik

Roger Lundén

Dynamik

Wear

0043-1648 (ISSN)

Vol. 314 1-2 125-131

Ämneskategorier

Maskinteknik

Styrkeområden

Transport

DOI

10.1016/j.wear.2013.12.008