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Coupled Multibody and Finite Element Modelling of Track Settlement
2021Differential settlement, particularly at stiffness transitions such as bridge approaches, is a major issue in the rail industry. It generally leads to increased wear and maintenance as well as speed restrictions. Left unchecked, settlement can cause damage or derailment.
Craig D. Foster, Shubhankar Kulkarni
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Management of Settlement of Railway Tracks
2016Railway tracks built on unstable formation or on poor sub-grade often undergo differential settlement endangering the safety of trains running over it. Before deciding on the remedial approach, the cause for settlement has to be identified. The chapter elaborates the probable causes behind track settlement and reasons out a package of measures with ...
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Track path of NCAA settlement developments
College Athletics and the LawThe parties involved in the various NCAA antitrust cases were sent back to the negotiations table by U.S. District Judge Claudia Wilken in September of this year to revise the language of the proposed billion dollar agreement before it could be finalized and made an order of the court. (The antitrust matters involved House v. NCAA (No. 4:20‐cv‐03919, N.
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Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2018
Based on the track geometry car recordings performed from 1999 to 2016 on a section of the Swedish heavy haul line Malmbanan, the vertical track geometry degradation is analysed for wavelengths in the interval 1–25 m. The upper layer of the subgrade on parts of the rail section is peat (depths of up to 2 m), while it is moraine on others leading to a ...
Jens CO Nielsen +4 more
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Based on the track geometry car recordings performed from 1999 to 2016 on a section of the Swedish heavy haul line Malmbanan, the vertical track geometry degradation is analysed for wavelengths in the interval 1–25 m. The upper layer of the subgrade on parts of the rail section is peat (depths of up to 2 m), while it is moraine on others leading to a ...
Jens CO Nielsen +4 more
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Vehicle System Dynamics, 1995
SUMMARY Dynamic vehicle/track forces from a train travelling over a long continuous wave in vertical track profile can compress the ballast preferentially in the troughs, thus making the wave worse. This model, built from simple representations of ballast, track and vehicle response, provides qualitative insights into the physical phenomena involved ...
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SUMMARY Dynamic vehicle/track forces from a train travelling over a long continuous wave in vertical track profile can compress the ballast preferentially in the troughs, thus making the wave worse. This model, built from simple representations of ballast, track and vehicle response, provides qualitative insights into the physical phenomena involved ...
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Journal of Transportation Engineering, 2013
AbstractThe circulation of trains at very high speeds (higher than 300 km/h) leads to important vibrations in the track and its environment.
P. A. Ferreira, A. López-Pita
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AbstractThe circulation of trains at very high speeds (higher than 300 km/h) leads to important vibrations in the track and its environment.
P. A. Ferreira, A. López-Pita
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Analysis of Effect Parameters of Track Settlement in Heavy Haul Railways
ICTE 2015, 2015Ballast bed in heavy haul railway will accumulate residual deformation and lead to track accumulative settlement under the repeatedly influence of the dynamic load of train. Studying on rule LU Ye s of track settlement of heavy haul railway is the premise of variant design and maintenance management, the effects of transportation conditions and track ...
Jianfeng Shen +4 more
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Numerical Model and Laboratory Tests on Settlement of Ballast Track
2003The long-term behaviour of ballast track was investigated. Tests on a railway model circular circuit showed troughs and saddles fixed in place. The ballast under badly bedded sleepers undergoes greater vertical deformation than under well bedded sleepers.
Sven Augustin +3 more
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2016
As a result of the loadings generated by train traffic, settlements occur at a railway track in time. Railway track settlement is the deterioration of alignment and level of track. Due to these settlements railway track becomes insufficient to provide track condition requirements and maintenance activities become necessary.
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As a result of the loadings generated by train traffic, settlements occur at a railway track in time. Railway track settlement is the deterioration of alignment and level of track. Due to these settlements railway track becomes insufficient to provide track condition requirements and maintenance activities become necessary.
openaire +1 more source