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Effects of Curving of a SRT Passenger Coach with SRT Vidura Wheel Profile and BS100A Rail on Wheel Wear and Wear Energy Dissipation
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Rail Vehicles.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This work presents the study of wheel wear due to curving of a particular type of the state Railway of Thailand (SRT) passenger coach at various radii of curvature with SRT Vidura Wheel and BS100A rail profile (1:40 inclination) on a meter gauge track utilized by SRT. The tendency of wheel wear due to the different curve radii of both outer wheel and inner wheel of each wheel profile and the wear energy dissipation are studied. In addition, the ratio of lateral to vertical wheel rail forces in the presence of various friction conditions is investigated. This study utilized a GENSYS simulation software in modelling of the railway vehicle which is one of the best in railway industry. From the simulation with running distance of 14 km, it is found that the wheel wear at various radii of curvature is divided into three groups according to curve radius, 160-200, 300-400 and 500-3000 meter. The maximum wheel wear is at the curve radius of 300 meter and occurs at the outer wheel rather than at the inner wheel. The smaller curve radius contributed to the high wear energy dissipation due to larger angle of attack and high longitudinal stiffness of the bogie. The increasing coefficient of friction provided the higher values of Y/Q where the value of Y/Q exceeded Nadal’s limit for 0.5 coefficient of friction value that could start wheel flange climbing of the outer wheel so that a wheel flange should be lubricated to prevent derailment.

Place, publisher, year, edition, pages
2018. , p. 49
Series
TRITA-SCI-GRU ; 2018:037
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-234843OAI: oai:DiVA.org:kth-234843DiVA, id: diva2:1247303
Examiners
Available from: 2018-09-20 Created: 2018-09-11 Last updated: 2018-09-20Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf