Application Equipment

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Kevin Oldknow - One of the best experts on this subject based on the ideXlab platform.

  • Wayside gauge face lubrication: How much do we really understand?
    Proceedings of the Institution of Mechanical Engineers Part F: Journal of Rail and Rapid Transit, 2012
    Co-Authors: Donald T. Eadie, Kevin Oldknow, Marco Santoro, Gene Kwan, Marcia Yu, Xin Lu
    Abstract:

    Wayside gauge face lubrication is widely used to minimize rail wear. Scientific understanding of this process is limited; however, there have been significant recent improvements in Application Equipment. In this paper the process is analyzed in terms of a number of interacting sub-processes, and the factors thought to be important for lubricant and Application Equipment are reviewed. Wheel/rail contact conditions (pressure and temperature) are also identified as significant variables. Grease stability and retentivity are significant factors that affect lubricant performance; however, significant knowledge gaps exist about the factors that influence grease pick up and carry down especially at the extremes of operating temperatures. Laboratory (two-roller rig measurement of retentivity) and field evaluation (rail friction measurements of carry down) gave the same relative ranking for the tested grease samples. Areas for future research in the area are identified.

  • field studies of the effect of friction modifiers on short pitch corrugation generation in curves
    Wear, 2008
    Co-Authors: Donald T. Eadie, Marco Santoro, Kevin Oldknow
    Abstract:

    Abstract This paper describes field evaluation on the effect of top of rail friction control on short pitch corrugation growth on different mass transit railways in Europe and Japan. Measurements were made during baseline conditions to evaluate the rate of growth of corrugations. Friction modifier (FM) was then applied using wayside Application Equipment, in some cases after grinding to re-establish an uncorrugated state. It was observed that FM Application reduced the rate of corrugation growth by a factor of 6–11 times. In most cases there were little or no new corrugations when FM was applied on sites that formed corrugations rapidly under baseline conditions. Modelling showed that the test sites had a range of contact conditions, indicating that the effect of FM on corrugations is insensitive to changes in profile.

  • Field studies of the effect of friction modifiers on short pitch corrugation generation in curves
    Wear, 2008
    Co-Authors: Donald T. Eadie, Kevin Oldknow, Marco Santoro, Yasushi Oka
    Abstract:

    This paper describes field evaluation on the effect of top of rail friction control on short pitch corrugation growth on different mass transit railways in Europe and Japan. Measurements were made during baseline conditions to evaluate the rate of growth of corrugations. Friction modifier (FM) was then applied using wayside Application Equipment, in some cases after grinding to re-establish an uncorrugated state. It was observed that FM Application reduced the rate of corrugation growth by a factor of 6-11 times. In most cases there were little or no new corrugations when FM was applied on sites that formed corrugations rapidly under baseline conditions. Modelling showed that the test sites had a range of contact conditions, indicating that the effect of FM on corrugations is insensitive to changes in profile. © 2008 Donald T. Eadie.

Donald T. Eadie - One of the best experts on this subject based on the ideXlab platform.

  • Wayside gauge face lubrication: How much do we really understand?
    Proceedings of the Institution of Mechanical Engineers Part F: Journal of Rail and Rapid Transit, 2012
    Co-Authors: Donald T. Eadie, Kevin Oldknow, Marco Santoro, Gene Kwan, Marcia Yu, Xin Lu
    Abstract:

    Wayside gauge face lubrication is widely used to minimize rail wear. Scientific understanding of this process is limited; however, there have been significant recent improvements in Application Equipment. In this paper the process is analyzed in terms of a number of interacting sub-processes, and the factors thought to be important for lubricant and Application Equipment are reviewed. Wheel/rail contact conditions (pressure and temperature) are also identified as significant variables. Grease stability and retentivity are significant factors that affect lubricant performance; however, significant knowledge gaps exist about the factors that influence grease pick up and carry down especially at the extremes of operating temperatures. Laboratory (two-roller rig measurement of retentivity) and field evaluation (rail friction measurements of carry down) gave the same relative ranking for the tested grease samples. Areas for future research in the area are identified.

  • field studies of the effect of friction modifiers on short pitch corrugation generation in curves
    Wear, 2008
    Co-Authors: Donald T. Eadie, Marco Santoro, Kevin Oldknow
    Abstract:

    Abstract This paper describes field evaluation on the effect of top of rail friction control on short pitch corrugation growth on different mass transit railways in Europe and Japan. Measurements were made during baseline conditions to evaluate the rate of growth of corrugations. Friction modifier (FM) was then applied using wayside Application Equipment, in some cases after grinding to re-establish an uncorrugated state. It was observed that FM Application reduced the rate of corrugation growth by a factor of 6–11 times. In most cases there were little or no new corrugations when FM was applied on sites that formed corrugations rapidly under baseline conditions. Modelling showed that the test sites had a range of contact conditions, indicating that the effect of FM on corrugations is insensitive to changes in profile.

  • Field studies of the effect of friction modifiers on short pitch corrugation generation in curves
    Wear, 2008
    Co-Authors: Donald T. Eadie, Kevin Oldknow, Marco Santoro, Yasushi Oka
    Abstract:

    This paper describes field evaluation on the effect of top of rail friction control on short pitch corrugation growth on different mass transit railways in Europe and Japan. Measurements were made during baseline conditions to evaluate the rate of growth of corrugations. Friction modifier (FM) was then applied using wayside Application Equipment, in some cases after grinding to re-establish an uncorrugated state. It was observed that FM Application reduced the rate of corrugation growth by a factor of 6-11 times. In most cases there were little or no new corrugations when FM was applied on sites that formed corrugations rapidly under baseline conditions. Modelling showed that the test sites had a range of contact conditions, indicating that the effect of FM on corrugations is insensitive to changes in profile. © 2008 Donald T. Eadie.

Yasushi Oka - One of the best experts on this subject based on the ideXlab platform.

  • Field studies of the effect of friction modifiers on short pitch corrugation generation in curves
    Wear, 2008
    Co-Authors: Donald T. Eadie, Kevin Oldknow, Marco Santoro, Yasushi Oka
    Abstract:

    This paper describes field evaluation on the effect of top of rail friction control on short pitch corrugation growth on different mass transit railways in Europe and Japan. Measurements were made during baseline conditions to evaluate the rate of growth of corrugations. Friction modifier (FM) was then applied using wayside Application Equipment, in some cases after grinding to re-establish an uncorrugated state. It was observed that FM Application reduced the rate of corrugation growth by a factor of 6-11 times. In most cases there were little or no new corrugations when FM was applied on sites that formed corrugations rapidly under baseline conditions. Modelling showed that the test sites had a range of contact conditions, indicating that the effect of FM on corrugations is insensitive to changes in profile. © 2008 Donald T. Eadie.

Marco Santoro - One of the best experts on this subject based on the ideXlab platform.

  • Wayside gauge face lubrication: How much do we really understand?
    Proceedings of the Institution of Mechanical Engineers Part F: Journal of Rail and Rapid Transit, 2012
    Co-Authors: Donald T. Eadie, Kevin Oldknow, Marco Santoro, Gene Kwan, Marcia Yu, Xin Lu
    Abstract:

    Wayside gauge face lubrication is widely used to minimize rail wear. Scientific understanding of this process is limited; however, there have been significant recent improvements in Application Equipment. In this paper the process is analyzed in terms of a number of interacting sub-processes, and the factors thought to be important for lubricant and Application Equipment are reviewed. Wheel/rail contact conditions (pressure and temperature) are also identified as significant variables. Grease stability and retentivity are significant factors that affect lubricant performance; however, significant knowledge gaps exist about the factors that influence grease pick up and carry down especially at the extremes of operating temperatures. Laboratory (two-roller rig measurement of retentivity) and field evaluation (rail friction measurements of carry down) gave the same relative ranking for the tested grease samples. Areas for future research in the area are identified.

  • field studies of the effect of friction modifiers on short pitch corrugation generation in curves
    Wear, 2008
    Co-Authors: Donald T. Eadie, Marco Santoro, Kevin Oldknow
    Abstract:

    Abstract This paper describes field evaluation on the effect of top of rail friction control on short pitch corrugation growth on different mass transit railways in Europe and Japan. Measurements were made during baseline conditions to evaluate the rate of growth of corrugations. Friction modifier (FM) was then applied using wayside Application Equipment, in some cases after grinding to re-establish an uncorrugated state. It was observed that FM Application reduced the rate of corrugation growth by a factor of 6–11 times. In most cases there were little or no new corrugations when FM was applied on sites that formed corrugations rapidly under baseline conditions. Modelling showed that the test sites had a range of contact conditions, indicating that the effect of FM on corrugations is insensitive to changes in profile.

  • Field studies of the effect of friction modifiers on short pitch corrugation generation in curves
    Wear, 2008
    Co-Authors: Donald T. Eadie, Kevin Oldknow, Marco Santoro, Yasushi Oka
    Abstract:

    This paper describes field evaluation on the effect of top of rail friction control on short pitch corrugation growth on different mass transit railways in Europe and Japan. Measurements were made during baseline conditions to evaluate the rate of growth of corrugations. Friction modifier (FM) was then applied using wayside Application Equipment, in some cases after grinding to re-establish an uncorrugated state. It was observed that FM Application reduced the rate of corrugation growth by a factor of 6-11 times. In most cases there were little or no new corrugations when FM was applied on sites that formed corrugations rapidly under baseline conditions. Modelling showed that the test sites had a range of contact conditions, indicating that the effect of FM on corrugations is insensitive to changes in profile. © 2008 Donald T. Eadie.

John Mcdade - One of the best experts on this subject based on the ideXlab platform.

  • wireless technology and satellite internet access for high speed whole farm connectivity in precision agriculture
    Agricultural Systems, 2004
    Co-Authors: J M Mckinion, Sam Turner, Jeffrey L Willers, John J Read, Johnie N Jenkins, John Mcdade
    Abstract:

    Abstract An analysis of the multispectral image-based precision agriculture technology as used in the US cotton belt was undertaken to identify bottlenecks which limit the delivery and use of this technology. One area in particular was identified: the movement of data and information necessary to implement variable rate Applications. Solutions to reduce or eliminate this problem were explored. A new technology called wireless local area networking (or WLAN) was explored. A test farm was selected, a system was designed and implemented, and the resulting implementation was successfully tested. The system wirelessly connected cotton pickers, spray Equipment, variable rate fertilized Application Equipment, and hand-held personal digital assistant computers in the field, allowing for rapid bi-directional movement of data and information.