LB Foster Rail Technologies Corporation

Burnaby, Canada

LB Foster Rail Technologies Corporation

Burnaby, Canada
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Patent
L.B. Foster Rail Technologies Inc. | Date: 2017-03-07

A rail applicator assembly includes a rail having a head portion, a base portion, and a web portion extending between the head portion and the base portion. The head portion defines an outer surface. An applicator for applying a friction modifying material to the surface of the rail includes a foam body and an applicator support. The foam body is secured to the applicator support and defines a flow passageway that extends through the foam body for friction modifying material to flow through.


Lewis S.R.,University of Sheffield | Lewis R.,University of Sheffield | Cotter J.,LB Foster Rail Technologies Corporation | Lu X.,LB Foster Rail Technologies Corporation | Eadie D.T.,LB Foster Rail Technologies Corporation
CM 2015 - 10th International Conference on Contact Mechanics of Wheel / Rail Systems | Year: 2015

Low adhesion presents a major concern for many rail operators. Railway vehicles under these circumstances can experience a serious loss of braking capability giving rise to dangerous situations such as platform overruns and signals passed at danger. One cause of adhesion loss is autumn leaf fall [1]. Leaves are run over by the wheels of a train and a chemical reaction occurs between the leaf and the rail steel [2]. This forms a black layer on the rail which when wet causes very low friction. These leaf layers have also been shown to be isolating and can interfere with railway signalling systems. Traction enhancers (also referred to in this paper as traction gels) have been developed as an alternative solution to using sand alone. They consist of sand particles suspended in a water based gel and are designed to be delivered to the rail by the trackside or via mobile application systems. The aim of this work was to develop a technique for generating a representative leaf layer on the surface of a twin-disc rail specimen and using this to develop a test methodology for assessing the performance of a traction gel in terms of adhesion recovery, wear and its effect on wheel/rail isolation.


Ronasi H.,LB Foster Rail Technologies Corporation | Oldknow K.D.,LB Foster Rail Technologies Corporation | Vandermarel J.,LB Foster Rail Technologies Corporation | Cotter J.,LB Foster Rail Technologies Corporation | Eadie D.T.,LB Foster Rail Technologies Corporation
CM 2015 - 10th International Conference on Contact Mechanics of Wheel / Rail Systems | Year: 2015

Accurate representation of traction-creepage characteristics such as positive friction, traction coefficient and energy dissipation is required in applications including vehicle dynamics simulation, wear rate prediction and energy consumption in wheel/rail contact. In this paper, a novel measurement approach to identify the traction-creepage curve under various contact conditions is developed and evaluated. The approach has the potential to generate meaningful traction-creepage curves quickly within a fraction of a minute and with simplicity. Moreover, a method to estimate energy dissipation at the contact area is introduced. Friction force at the interface and energy dissipation calculations are based on equations of motion for a twin disc machine. A comparison with the results from previous studies using conventional methods suggests that the proposed approach warrants future consideration.


Girsch G.,Voestalpine AG | Joerg A.,Voestalpine AG | Stock R.,LB Foster Rail Technologies Corporation
Civil-Comp Proceedings | Year: 2014

Since the early days of railway operations, rail degradation caused by continuously increasing train frequencies and axle loads is one of the key motivations for rail grade development. During the last twenty to twenty-five years, rail grade development has focused on heat treated fine-pearlitic rail grades with a Brinell hardness of more than 400BHN and material strength beyond 1300MPa. These rail grades demonstrate an excellent resistance against wear and rolling contact fatigue (RCF) resistance. Nevertheless, these pearlitic rail grades will develop RCF defects (such as head checks or squats) at some point under specific track and loading conditions. In order to keep control of these defects and to prevent catastrophic rail failure as seen in the past, preventive or corrective maintenance actions have to be executed. However, these countermeasures represent significant cost factors. A newly developed rail grade with a special engineered bainitic material structure promises to solve the RCF problem. Laboratory tests on special full scale test rigs at voestalpine Schienen GmbH have been conducted. The results obtained do prove the potential of this bainitic rail grade to successfully mitigate the formation of RCF defects such as head checks. Ongoing track tests in Europe under high speed and mixed traffic conditions show the same promising results so far. This special rail grade provides the potential to drastically reduce if not even completely avoid RCF grinding activities in the future. © Civil-Comp Press, 2014.


Beck M.,LB Foster Bahntechnik GmbH | Stock R.,LB Foster Rail Technologies Corporation | Temple B.,United Technologies
The Dynamics of Vehicles on Roads and Tracks - Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics, IAVSD 2015 | Year: 2016

Corrugation removal is associated with significant cost factors for infrastructure owners. The deliberate addition of a water based friction modifier into the tribological system between wheel and rail provides the necessary means to mitigate or even suppress the mechanisms associated with corrugation formation (wear, plastic deformation) and growth. This paper discusses these mechanisms, effects and improvement factors with respect to corrugation suppression at various passenger rail systems achieved by effective application of the water based friction modifier KELTRACK®. Besides the technical background the economic benefits of this sustainable approach will also be analysed and discussed. © 2016 Taylor & Francis Group, London.


Patent
L.B. FOSTER RAIL TECHNOLOGIES Corporation and Union Pacific Railroad | Date: 2015-02-27

A method to determine fuel consumption, energy consumption, or both fuel consumption and energy consumption, during one test train run, or a plurality of test train runs, that is associated with modifying an operating parameter is provided. The method includes determining a reference fuel/energy consumption, and a cumulative ITE for one, or a plurality of reference train runs (CITE_(RR)) over a portion of track, and correcting the reference fuel/energy consumption using the CITE_(RR )of the one, or a plurality of reference train runs, to produce a corrected reference fuel/energy consumption value. The operating parameter is modified, and a modified fuel/energy consumption and cumulative ITE for the one, or a plurality of test train runs (CITE_(TR)), over the portion of track is determined, and a corrected test fuel/energy consumption value is obtained by correcting the modified fuel/energy consumption using the CITE_(TR )of the one, or a plurality of test train runs. The corrected reference fuel/energy consumption value and the test fuel/energy consumption value are then compared to determine the effect of modifying the operating parameter on the fuel/energy consumption during the one test run, or a plurality of test train runs.


Elvidge D.,LB Foster Rail Technologies Corporation | Stock R.,LB Foster Rail Technologies Corporation | Hardwick C.,United Technologies | Oldknow K.,LB Foster Rail Technologies Corporation
Civil-Comp Proceedings | Year: 2016

Numerous studies have identified the effects of a water based, drying top of rail (TOR) friction modifier (FM) on key parameters such as lateral forces, rail wear, rolling contact fatigue (RCF), and fuel consumption. In principal reductions in wheel wear and RCF related defects may also be anticipated. While the effects of (solid stick) TOR FM application on wheel wear have been documented in closed loop passenger rail systems, no data has been presented to substantiate this effect on freight railroads using wayside application where only a small portion of total wheel rotations experience TOR FM application. This paper presents comparisons made between coal trains running over essentially identical routes to two power generating utilities, one whose fleet was largely equipped with train mounted (AutoPilot™) TOR FM, and the other without. Comparisons were also made on a time basis before and after TOR FM implementation. Results obtained validate confirm the positive impacts from a dry film friction modifier on wheel wear and in particular RCF, and provide significant additional impetus for implementation of train mounted TOR FM especially for car owners and those paying for car maintenance. © Civil-Comp Press, 2016.


Patent
L.B. Foster Rail Technologies Inc. | Date: 2015-02-12

A rail applicator assembly includes a rail having a head portion, a base portion, and a web portion extending between the head portion and the base portion. The head portion defines an outer surface. An applicator for applying a friction modifying material to the surface of the rail includes a foam body and an applicator support. The foam body is secured to the applicator support and defines a flow passageway that extends through the foam body for friction modifying material to flow through.


Patent
L.B. Foster Rail Technologies Inc. | Date: 2011-05-19

A wayside friction management system, and method for monitoring and controlling a wayside friction management system is described. The system comprises one or more wayside device for mounting with a track of a rail system. The wayside device comprises a delivery system connected to a reservoir comprising a friction control media, the delivery system for applying the friction control media from the reservoir to one or both rails of a track. The wayside device further comprises one ore more data collection module located at or adjacent to the delivery system. The data collection module for collecting and transmitting data to a remote performance unit. The data may comprise performance information, track status information, information of an environment of the track, information of a train passing over the track, status of the one or more wayside device, or a combination thereof. The wayside device may comprise a power source operatively connected to one or more components of the wayside device.


Patent
L.B. Foster Rail Technologies Inc. | Date: 2016-05-16

A wayside friction management system, and method for monitoring and controlling a wayside friction management system is described. The system comprises one or more wayside device for mounting with a track of a rail system. The wayside device comprises a delivery system connected to a reservoir comprising a friction control media, the delivery system for applying the friction control media from the reservoir to one or both rails of a track. The wayside device further comprises one ore more data collection module located at or adjacent to the delivery system. The data collection module for collecting and transmitting data to a remote performance unit. The data may comprise performance information, track status information, information of an environment of the track, information of a train passing over the track, status of the one or more wayside device, or a combination thereof. The wayside device may comprise a power source operatively connected to one or more components of the wayside device.

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