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The effect of the wavelength of lateral track geometry irregularities on the response measurable by an instrumented freight wagon

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journal contribution
posted on 2024-04-10, 02:27 authored by Donald SkermanDonald Skerman, Colin ColeColin Cole, Maksym SpiryaginMaksym Spiryagin
Condition monitoring of railway track geometry using instrumented in-service vehicles has been the subject of extensive research aimed at replacing or enhancing the data provided by dedicated track recording vehicles. Lateral track irregularities present difficulties compared to vertical irregularities due to the lateral clearance between the wheel flanges and the rail head. Wheelsets don’t necessarily follow the lateral trajectory of the track. Simulations of a freight wagon with three-piece bogies negotiating both discrete and cyclic lateral track irregularities showed that the resulting lateral displacements were highly dependent on the wavelength of the irregularities. The wheel/rail profiles also had a significant effect whilst the effect of speed was relatively minor. These findings highlight the complexities of identifying exceedances of track geometry standards using only inertial sensors on instrumented freight wagons.

Funding

Category 3 - Industry and Other Research Income

History

Volume

62

Issue

3

Start Page

533

End Page

555

Number of Pages

23

eISSN

1744-5159

ISSN

0042-3114

Publisher

Taylor & Francis

Additional Rights

CC BY-NC-ND 4.0 DEED

Language

en

Peer Reviewed

  • Yes

Open Access

  • Yes

Acceptance Date

2023-02-17

Author Research Institute

  • Centre for Railway Engineering

Era Eligible

  • Yes

Journal

Vehicle System Dynamics: international journal of vehicle mechanics and mobility