RSFT-RBF-PSO: a railway wheel profile optimisation procedure and its application to a metro vehicle

AbstractAccurate wear prediction on railway wheels and evolution of railway wheels profile can affect the maintenance planning. The objective of this paper is to provide a new applied method for measuring the railway wheel profile with photographing from the railway wheel to measure by image processing techniques. The aim of this new applied method is to measure the wheel profile using images taken from railway wheels and compare it with the original plan. For this purpose, images were taken by using a camera. In this study, all automatic correction options were turned off and brightness and contrast were in normal conditions. The pixel data is converted to double-type data and are placed in the range of zero and one. Then, the input image which is usually as a three-channel or RGB image is converted to a single channel or gray surface image. Images taken from wheel profiles are processed using image processing techniques. Then the lines, curves and shapes in the image are extracted as cross-sectional and continuous curves. The new applied method results by image processing method obtained show good agreement with those achieved in field measurements.

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Design of Wheel Profile to Reduce Wear of Railway Wheel

Journal of the Korean Society for Precision Engineering ◽

10.7736/kspe.2012.29.6.607 ◽

2012 ◽

Vol 29 (6) ◽

pp. 607-612 ◽

Cited By ~ 2

Author(s):

Ha-Young Choi ◽

Dong-Hyong Lee ◽

Chang-Yong Song ◽

Jong-Soo Lee

Keyword(s):

Railway Wheel ◽

Wheel Profile

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Design of railway wheel profile taking into account rolling contact fatigue and wear

Wear ◽

10.1016/j.wear.2008.03.018 ◽

2008 ◽

Vol 265 (9-10) ◽

pp. 1273-1282 ◽

Cited By ~ 33

Author(s):

I.Y. Shevtsov ◽

V.L. Markine ◽

C. Esveld

Keyword(s):

Rolling Contact Fatigue ◽

Contact Fatigue ◽

Rolling Contact ◽

Railway Wheel ◽

Wheel Profile

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Optimization of Railway Wheel Profile Using Mars Method

43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference ◽

10.2514/6.2002-1320 ◽

2002 ◽

Cited By ~ 1

Author(s):

Ivan Shevtsov ◽

Valéri Markine ◽

Coenraad Esveld

Keyword(s):

Railway Wheel ◽

Wheel Profile

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Profiles synthesis through radii variation of arcs profile method

MATEC Web of Conferences ◽

10.1051/matecconf/201925401016 ◽

2019 ◽

Vol 254 ◽

pp. 01016

Author(s):

Tomáš Lack ◽

Juraj Gerlici

Keyword(s):

Transport System ◽

Rail Transport ◽

Railway Vehicle ◽

Direct Influence ◽

Basic Point ◽

Railway Wheel ◽

Geometrical Characteristics ◽

Geometry Design ◽

Wheel Profile ◽

The Moment

The article deals with one of the ways of profile geometry design of a railway wheel and rail. The base for the creation of a new profile is an interactive attitude based on the modification of „the original shape which is defined by section of a railway wheel profile“, with to each other connected and exactly defined arcs radii. It is possible to change them according to shape needs of the final geometrical characteristics. Problems of the railway wheel/rail contact represents a basic point of any analysis which is connected with the moment of a railway vehicle on a track, with safety, speed, with comfort of people and goods transport. It is connected with the construction of new railway vehicles, with the reconstruction the old ones, with the approval (refusal) of vehicles into operation, with their evaluation as well as with the evaluation of track quality and their maintenance. It has a direct influence on the position of rail transport in the frame of the whole transport system, on economics, ecology and so on.

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