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Performance of top-of-rail products in railway
Jordán, Tomáš ; Polach, Pavel (referee) ; Galas, Radovan (advisor)
Presented master’s thesis deals with a development of methodology of the top-of-rail products performance in railway with use of the real rail. The performance parameters are adhesion development with carry distance, carry distance, friction layer retentivity and product redistribution. The top-of-rail products are used to reduction of wear and noise pollution in railway. Currently used methodology in laboratory cause model distortion and unreal friction layer. Field experiments are affected by environmental conditions. As a main part of this thesis was developing of the methodology for the performance parameters study. The methodology was experimentally tested with four commercial products. An obtained knowledge was presented and discussed. As a part of the methodology was studied running-in of real rail. For measuring of shear friction on the top-of-rail was designed and realized a tribometer. The output of this work is functional sample of the tribometer and a manuscript dealing with the designed methodology.
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Design of wayside unit for spraying of lubricant on rail
Jordán, Tomáš ; Galas, Radovan (referee) ; Valena, Martin (advisor)
Presented bachelor thesis deals with development and design of wayside unit for top of rail lubrication by spraying. TOR lubricant reduces wear and noise emission on the railways or tram rails. Introductory part of this thesis deals with lubricants properties and also units which are currently available on the market. The thesis contains proposal of wayside unit and it describes design solution. Based on a suitable design a prototype it was made. Furthermore experiments were carried out and their conclusion was that the unit is functional. The tests involved measuring of accuracy, repeatability and general analysis of spray pattern.
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Performance of top-of-rail products in railway
Jordán, Tomáš ; Polach, Pavel (referee) ; Galas, Radovan (advisor)
Presented master’s thesis deals with a development of methodology of the top-of-rail products performance in railway with use of the real rail. The performance parameters are adhesion development with carry distance, carry distance, friction layer retentivity and product redistribution. The top-of-rail products are used to reduction of wear and noise pollution in railway. Currently used methodology in laboratory cause model distortion and unreal friction layer. Field experiments are affected by environmental conditions. As a main part of this thesis was developing of the methodology for the performance parameters study. The methodology was experimentally tested with four commercial products. An obtained knowledge was presented and discussed. As a part of the methodology was studied running-in of real rail. For measuring of shear friction on the top-of-rail was designed and realized a tribometer. The output of this work is functional sample of the tribometer and a manuscript dealing with the designed methodology.
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Design of wayside unit for spraying of lubricant on rail
Jordán, Tomáš ; Galas, Radovan (referee) ; Valena, Martin (advisor)
Presented bachelor thesis deals with development and design of wayside unit for top of rail lubrication by spraying. TOR lubricant reduces wear and noise emission on the railways or tram rails. Introductory part of this thesis deals with lubricants properties and also units which are currently available on the market. The thesis contains proposal of wayside unit and it describes design solution. Based on a suitable design a prototype it was made. Furthermore experiments were carried out and their conclusion was that the unit is functional. The tests involved measuring of accuracy, repeatability and general analysis of spray pattern.
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