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New Methodology to Estimate Costs Caused by Rail Wear and RCF Depending on the Type of Running Gear
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg. KTH, Skolan för teknikvetenskap (SCI), Centra, Järnvägsgruppen, JVG. (Spårfordon)ORCID-id: 0000-0002-4477-971x
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg.ORCID-id: 0000-0002-6346-6620
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg.ORCID-id: 0000-0002-8237-5847
2020 (engelsk)Inngår i: IAVSD 2019: Advances in Dynamics of Vehicles on Roads and Tracks / [ed] Matthijs Klomp, Fredrik Bruzelius, Jens Nielsen and Angela Hillemyr, Springer Nature , 2020Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

A new methodology to estimate costs for wear and Rolling Contact Fatigue (RCF) on rails that cause a major portion of track maintenance costs is presented. It is demonstrated for a standard UIC-Y25 bogie and a FR8RAIL bogie, a softer and cross-braced iteration of the former. The rail profile evolution and the surface-initiated fatigue on the rail surface for different track radii with progressive tonnage are calculated using multi-body simulations. ‘Fastrip’ is used to calculate tangential stresses on the contact patch. Various non-linearities in the vehicle and track models have been considered, based on running conditions on the Swedish Iron-ore line. A cyclic rail grinding procedure at fixed tonnage intervals based on recommendations from EN13231-5 is implemented, to also account for the effect of track maintenance on the rate of rail surface damage. The wear depths (W), worn cross-sectional areas (A) and the number of axle passes that carry a risk for RCF initiation (Nr) are presented and discussed for 100 Mega Gross Tonnes passage. In doing so, the methodology addresses ‘track-friendliness’ of the running gear considering both its design and the track maintenance strategies.

sted, utgiver, år, opplag, sider
Springer Nature , 2020.
Serie
Lecture Notes in Mechanical Engineering, ISSN 2195-4356, E-ISSN 2195-4364
Emneord [en]
Track-friendliness, Rail wear and RCF, Cyclic grinding, Rail profile evolution, Running gear
HSV kategori
Forskningsprogram
Farkostteknik; Järnvägsgruppen - Fordonsteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-267717DOI: 10.1007/978-3-030-38077-9_84ISI: 000675429300084Scopus ID: 2-s2.0-85081624466OAI: oai:DiVA.org:kth-267717DiVA, id: diva2:1393054
Konferanse
The IAVSD International Symposium on Dynamics of Vehicles on Roads and Tracks
Prosjekter
FR8RAIL (Grant no. 730617)
Forskningsfinansiär
EU, Horizon 2020, 730617
Merknad

QC 20200608

Tilgjengelig fra: 2020-02-14 Laget: 2020-02-14 Sist oppdatert: 2023-03-28bibliografisk kontrollert

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Krishna, Visakh VHossein Nia, SaeedStichel, Sebastian

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