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2020 | OriginalPaper | Chapter

Dynamics of Wagon System Containing Out-of-Round Wheels Subject to Brake Torque

Authors: Qingqun Lan, Manicka Dhanasekar, Yunendar Handoko

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

Publisher: Springer International Publishing

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Abstract

Effect of out-of-round (OOR) wheels to the vertical and longitudinal accelerations of wagons subject to braking is reported. A multibody dynamic model that enables application of braking torque naturally with no need to specifying speed profile as a priori was formulated for this purpose. OOR was considered as a periodic defect of six orders around the wheel tread with an amplitude of deviation from design radius of 0.5 mm. Magnitude of the braking torque was limited below the level of skid risk; brake torque was applied gradually in 4 s. OOR was found to dominate (masking the effect of braking) the accelerations of the wheelsets and bogie frames. Longitudinal accelerations were much larger than the vertical accelerations. Accelerations in wagon body were well damped with no significant difference between defect-free and OOR wheels with and without braking.
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Metadata
Title
Dynamics of Wagon System Containing Out-of-Round Wheels Subject to Brake Torque
Authors
Qingqun Lan
Manicka Dhanasekar
Yunendar Handoko
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-38077-9_53

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