000022801 001__ 22801
000022801 005__ 20220110134527.0
000022801 04107 $$aeng
000022801 046__ $$k2018-05-14
000022801 100__ $$aKyryl'chuk, O.
000022801 24500 $$aHigh speed stability of a railway vehicle equipped with independently rotating wheels

000022801 24630 $$n24.$$pEngineering Mechanics 2018
000022801 260__ $$bInstitute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague
000022801 506__ $$arestricted
000022801 520__ $$2eng$$aThe paper is devoted to the study of lateral oscillation and the assessment of the motion stability of a four axle railway vehicle equipped with wheelsets with independently rotating wheels. First, a linear four degrees of freedom mathematical model of the unconstrained wheelset in a straight track has been built. The wheelset model was consequently utilized in a model of the whole vehicle representing typical railway passenger car. The model has 25 degrees of freedom and it is described by a system of 50 first order homogeneous differential equations. Linear algebra methods were used to assess the stability. The influence of a running velocity, the torsional stiffness of wheelsets and the viscosity of coupling element between wheels was studied. Results of this study shows that wheelsets with independently rotating wheels and viscous coupling element enable stable behaviour of a vehicle at speeds exceeding 500 km/h. Prospectively, this type of wheelset is applicable to high-speed railway vehicles, because it offers either further increase of running speeds or simplification of running gear while preserving high speed stability.

000022801 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022801 653__ $$arailway wheelset, independently rotating wheels, lateral dynamics, stability

000022801 7112_ $$aEngineering Mechanics 2018$$cSvratka, CZ$$d2018-05-14 / 2018-05-17$$gEM2018
000022801 720__ $$aKyryl'chuk, O.$$iKalivoda, J.$$iNeduzha, L.
000022801 8560_ $$ffischerc@itam.cas.cz
000022801 8564_ $$s818828$$uhttps://invenio.itam.cas.cz/record/22801/files/473.pdf$$yOriginal version of the author's contribution in proceedings, page , section DYN.
000022801 962__ $$r21225
000022801 980__ $$aPAPER