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2020 | OriginalPaper | Chapter

Integration of a Wear Model into Wheel Profile Optimisation on Metro Vehicles to Mitigate Flange Wear

Authors: Dexiang Ren, Gongquan Tao, Zefeng Wen, Shulin Liang, Hongqin Liang, Xuesong Jin

Published in: Advances in Dynamics of Vehicles on Roads and Tracks

Publisher: Springer International Publishing

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Abstract

Wheel flange wear often occurs on metro trains when they negotiate sharp curves, especially for the poor matching of wheel and rail profiles or lack of lubrication, which evidently increases the maintenance and replacement costs of the wheelsets and rails. The reason for severe flange wear of the original wheel profile on one metro line in China is investigated through field experiments and numerical simulations. An optimal wheel profile is presented based on the rolling radius difference (RRD) to improve curving performance of the vehicle and mitigate flange wear. A wheel wear prediction model, coupling a metro vehicle dynamics model considering multipoint contact with a long-term wear simulation model, is developed, which is validated using field measurement results. The capability of the optimal wheel profile is numerically evaluated. The results show that the improper wheel-rail profile matching of the original wheel profile is responsible for wheel flange wear. The large proportion of sharp curves and the abnormal rail cant also contribute to flange wear. The optimal wheel profile proves to work fine in terms of wheel/rail contact geometry and wear performance. The wheel flange wear of the optimal wheel profile is decreased by over 60% compared with that of S1002 profile.
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Metadata
Title
Integration of a Wear Model into Wheel Profile Optimisation on Metro Vehicles to Mitigate Flange Wear
Authors
Dexiang Ren
Gongquan Tao
Zefeng Wen
Shulin Liang
Hongqin Liang
Xuesong Jin
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-38077-9_93

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