Enhanced method and apparatus for deducing a correct rail weight for use in rail wear analysis of worn railroad rails

a technology of rail wear analysis and correct rail weight, which is applied in the field of rail maintenance, can solve the problems of manual entry of rail weight and associated unworn profiles of rails, and nothing in the art listed above solves or even addresses the problem, so as to facilitate selection and application of the appropriate rail.

a technology of rail wear analysis and correct rail weight, which is applied in the field of rail maintenance, can solve the problems of manual entry of rail weight and associated unworn profiles of rails, and nothing in the art listed above solves or even addresses the problem, so as to facilitate selection and application of the appropriate rail.

US20050279240A1Inactive Publication Date: 2005-12-22TATA CONSULTANCY SERVICES LTD
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  • Enhanced method and apparatus for deducing a correct rail weight for use in rail wear analysis of worn railroad rails
  • Enhanced method and apparatus for deducing a correct rail weight for use in rail wear analysis of worn railroad rails
  • Enhanced method and apparatus for deducing a correct rail weight for use in rail wear analysis of worn railroad rails

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Embodiment Construction

[0066] In accordance with embodiments of the present invention, the inventors provide methods and apparatus for automatic identification and selection of a correct rail weight for a worn rail using the worn rail profile as data input. The methods and apparatus of the present invention will be described in enabling detail below.

[0067] As was described in the background section above, prior-art methods for rail-wear calculation are adept at acquiring the shape of worn rails, which is the primary reason for their use in rail wear measurement. However, they may rely on user-specified rail weights for calculation of wear. Since in actual practice, the track is made up of several differing rail weights, a separate manual process involving visual comparison of rail profile shapes with that of standard profiles may be required to establish correct rail weights and calculate wear accurately. Some of the commercial systems listed in the background section above claim to possess automatic rai...

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Abstract

A system for identifying rail weights applicable to worn railroad rails measured along a railroad track system includes at least one track measurement device for recording at least a portion of a profile shape of the worn rails, and, a data processor running a software implement for accepting recorded data as input data from the at least one track measurement device and for processing the input data against known unworn railroad rail data to facilitate selection and application of the appropriate rail weights equated thereto to the worn railroad rails.

Description

FIELD OF THE INVENTION [0001] The present invention is in the field of railroad maintenance and pertains particularly to methods and apparatus for deducing correct rail weights for use in rail wear analysis of worn railroad rails. BACKGROUND OF THE INVENTION [0002] Maintenance of railroad tracks is extremely important for safe operation of trains on railroads. Widening of gage (the separation between the left and right rails), excessive wear of rails and fatigue-induced cracks in the rails can cause hamiful consequences such as derailments. In order to avoid such incidents, it is necessary for railroad owners and authorities to inspect the track conditions at regular intervals. To acquire information about the condition of railway tracks, important track parameters are often measured by means of specialized track geometry measurement vehicles or ‘Geocars’. The track parameters thus measured include track geometry (gage, alignment, curvature, cross-level, surface quality, etc.) as we...

Claims

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Application Information

Patent Timeline
22 Dec 2005
Publication
US20050279240A1
IPC
B61K9/08; E01B1/00
CPC
B61K9/08; B61L23/044; B61L23/045
Inventors
PEDANEKAR, NIRANJAN RAMESH; JAGDALE, ALOK PRAKASH