Rail Grinding and Track Vibration Resonances
Transit agencies in North America typically specify the ISO 3095:2005 rail roughness limits as an acceptance requirement in the grinding specifications. However, in practice, this requirement is rarely achieved, and the rail grinding industry typically proposes the EN 13231–3:2012 limits as alternate criteria for rail roughness. Rail grinding leaves grinding marks that show up as spectral roughness peaks at approximately 30 mm, 23 mm and 15 mm wavelengths. The roughness levels of these peaks are typically 5 to 15 decibels above the 2005 ISO curve. At 56 km/h train speeds, these peaks tend to increase the wayside noise by 1 or 2 decibels, or more where grinding marks are excessive. Measurements of track acceleration have shown that these roughness peaks generate vibration that coincides with the resilient fastener component resonance frequencies (800–900 Hz) at 89 km/h train speeds. These peaks are also close to the pin-pin vertical vibration mode of the rail. This paper focuses on an extreme case of this roughness peak exceeding the ISO curves and causing premature fatigue-induced failure of the rail clips installed on direct fixation fasteners.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9783030702885
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Supplemental Notes:
- © Springer Nature Switzerland AG 2021.
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Corporate Authors:
Springer Cham
Gewerbestrasse 11
Cham, Germany -
Authors:
- Rajaram, Shankar
- Nelson, James Tuman
- Saurenman, Hugh
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Conference:
- 13th International Workshop on Railway Noise
- Location: Ghent , Belgium
- Date: 2019-9-16 to 2019-9-20
- Publication Date: 2021-4
Language
- English
Media Info
- Media Type: Web
- Edition: 1st Edition
- Features: References;
- Pagination: pp 312-319
- Monograph Title: Noise and Vibration Mitigation for Rail Transportation Systems: Proceedings of the 13th International Workshop on Railway Noise, 16-20 September 2019, Ghent, Belgium
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Serial:
- Notes on Numerical Fluid Mechanics and Multidisciplinary Design
- Volume: 150
- Publisher: Springer-Verlag
- ISSN: 1612-2909
- Serial URL: http://www.springer.com/series/4629
Subject/Index Terms
- TRT Terms: Fatigue (Mechanics); Mechanical vibration; Rail grinding; Rail transit; Resonance; Rolling contact
- Geographic Terms: North America
- Subject Areas: Railroads; Vehicles and Equipment;
Filing Info
- Accession Number: 01874281
- Record Type: Publication
- ISBN: 9783030702885
- Files: TRIS
- Created Date: Feb 23 2023 9:31AM