Zobrazeno 1 - 10
of 125
pro vyhledávání: '"J. Riley Edwards"'
Publikováno v:
Frontiers in Built Environment, Vol 6 (2020)
Monitoring ballast support condition and improving current sub-structure and ballast maintenance strategies is critical to ensuring safe and efficient railroad operations. Researchers at the University of Illinois at Urbana-Champaign (Illinois) have
Externí odkaz:
https://doaj.org/article/1fd4f85d62464da0ae93b938602c4270
Publikováno v:
Frontiers in Built Environment, Vol 6 (2020)
Concrete sleepers are commonly used to constructed ballasted track infrastructure in demanding locations on heavy axle load (HAL) freight railroads with steep grades, sharp curves, and high annual gross tonnage. Center flexural cracking is one of the
Externí odkaz:
https://doaj.org/article/31e64cf015594083af68c2bb833efdba
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 237:508-516
Wheel profile is one of the most critical factors that governs the dynamic interaction between railcar wheels and the rail. This paper quantifies and analyzes 15,000 wheel profiles that were randomly selected from a dataset obtained from wayside whee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7c6b3d4294ccbc0263dd9721d578536
https://doi.org/10.1177/09544097221122030
https://doi.org/10.1177/09544097221122030
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 237:347-355
Over the past 20 years, there have been at least 10 derailments due to spike fastener fatigue failures in North America. These fatigue failures have been considered a moderate to severe challenge that require manual walking inspections that are both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::033060c8b9f9118f4552d229f2b29ace
https://doi.org/10.1177/09544097221112576
https://doi.org/10.1177/09544097221112576
Autor:
Ryan M Harrington, Arthur de O Lima, Richard Fox-Ivey, Thanh Nguyen, John Laurent, Marcus S Dersch, J Riley Edwards
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 237:137-145
Railroad track inspections conducted in accordance with federal regulations and internal railway operating practices result in significant labor costs and occupy valuable network capacity. These factors, combined with advancements in the field of mac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad55ef7b7cb6b9e2aa648d36e97613bb
https://doi.org/10.1177/09544097221093486
https://doi.org/10.1177/09544097221093486
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2676:695-707
Comparatively little attention has been given to the quantification of fastener demands, especially in the longitudinal direction. Research quantifying fastener demands is justified by the more than 250 FRA reportable derailments on mainlines and sid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cbe7a71c2fb2c1eeba7d9866c0bd336
https://doi.org/10.1177/03611981211069350
https://doi.org/10.1177/03611981211069350
Publikováno v:
Applied Sciences, Vol 11, Iss 1, p 261 (2020)
Ballasted railway track is typically constructed using sleepers that are manufactured from a common material type within a given length of track. Timber and concrete are the two most common sleeper materials used internationally. Evidence from histor
Externí odkaz:
https://doaj.org/article/1f3cbecb4abb421c8e4d02c00598bf96
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 236:950-959
Current structural models used for the flexural design of prestressed concrete sleepers assume that ballast bearing support is static and located within a fixed region. This assumption implies a linear relationship between wheel load and bending mome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9b8001d18335abf8380dc52973e668b
https://doi.org/10.1177/09544097211049887
https://doi.org/10.1177/09544097211049887
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 236:557-569
To address a recent challenge related to broken spikes in premium elastic fastening systems that have led to at least ten derailments and require manual walking inspections as well as build upon mechanistic-empirical (M-E) design principles for futur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d34af7f853ee44d587ec7814d1cc513
https://doi.org/10.1177/09544097211030736
https://doi.org/10.1177/09544097211030736
Autor:
Josué César Bastos, J. Riley Edwards, Erol Tutumluer, Marcus S. Dersch, Ricardo J. Quirós-Orozco
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2675:41-55
Many analytical methods and other processes have been developed for the evaluation of railway track and its components, but these have largely been used for analysis. Design is often driven by development projects that do not engage research, resulti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d2206e0091cf6eabb6fcd868e54786f
https://doi.org/10.1177/03611981211009881
https://doi.org/10.1177/03611981211009881