Justification of Parameters of Wheelset Axle Fatigue Strength Test-Bench for Railway Rolling Stock
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Dnipro National University of Railway Transport named after Academician V. Lazaryan
Abstract
ENG: Abstract. The operation safety of the railway rolling stock depends directly on the strength of the base part
of the wheelset – its axle. Therefore, in recent years numerous studies of theoretical and experimental nature,
both for means of rail transport, and for machines containing rail track equipment are carried out. This paper
substantiates the main parameters of the fatigue test bench for axles for wheelsets of railway rolling stock.
We performed an analysis of the load schema for bench tests, determined the dependence of the bench work
force on the parameters of the wheelset axle. In addition, we substantiated the design and parameters of
vibrator. For the research, we adopted the following criteria of rationality: work force, energy consumption
and longitudinal dimension of the test bench. The design is considered the best, if these criteria acquire the
smallest values. The results of the research indicate that the load scheme “cantilever beam” is rational for the
fatigue bench tests of the axles for wheelsets of railway rolling stock. The best design of the vibrator have to
provide the test bench work force by rotating the unbalanced mass around the stationary wheelset axle. The
rational vibrator contains a sectoral eccentric mass rotating at an angular velocity of about 150 s-1. In this
case, the eccentric mass value is about 80 kg, and its eccentricity is 135 mm.
Description
O. Kuropiatnyk: ORCID 0000-0001-5581-3883, S. Raksha: ORCID 0000-0002-4118-1341, .P. Anofriev: ORCID 0000-0001-7997-3523
Keywords
railway rolling stock, wheelset axle, fatigue strength, КПММ
Citation
Kuropiatnyk, O. Justification of Parameters of Wheelset Axle Fatigue Strength Test-Bench for Railway Rolling Stock [Electronic resource] / Oleksii Kuropiatnyk, Serhii Raksha, Pavlo Anofriev // MATEC Web of Conferences. – 2019. – Vol. 294 : 2nd International Scientific and Practical Conference “Energy-Optimal Technologies, Logistic and Safety on Transport” (EOT-2019). – P. 1–6. – Access Mode: https://www.matec-conferences.org/articles/matecconf/pdf/2019/43/matecconf_eot18_03008.pdf (21.10.2019). – DOI: 10.1051/matecconf/201929403008.