A new type of wheelset with wheels supported by roller bearings and connected through a transmission shaft has been proposed recently. This design resembles the typical independently rotating wheels architecture, widely used in low-floor trams, but with the peculiarity that the wheels look “apparently” independent (from which the acronym AIR wheelset, i.e. Apparently IRW). The presence of torsional constraint and the use of a torque limiter guarantee both optimal running dynamics at high speed and high track friendliness on winding lines. Trenitalia maintenance practice of conventional wheelsets is described and compared to the possible cycle for the AIR wheelset, showing that distinct advantages may be obtained under several aspects.
Maintainability of wheelsets: a novel solution to save time and money / Andrea Bracciali, Alessandro Corbizi Fattori, Paolo Cavicchi. - ELETTRONICO. - (2016), pp. 1-14. (Intervento presentato al convegno 11th World Congress on Railway Reseach, WCRR2016, Milan tenutosi a Milano nel 2016).
Maintainability of wheelsets: a novel solution to save time and money
Andrea Bracciali
;
2016
Abstract
A new type of wheelset with wheels supported by roller bearings and connected through a transmission shaft has been proposed recently. This design resembles the typical independently rotating wheels architecture, widely used in low-floor trams, but with the peculiarity that the wheels look “apparently” independent (from which the acronym AIR wheelset, i.e. Apparently IRW). The presence of torsional constraint and the use of a torque limiter guarantee both optimal running dynamics at high speed and high track friendliness on winding lines. Trenitalia maintenance practice of conventional wheelsets is described and compared to the possible cycle for the AIR wheelset, showing that distinct advantages may be obtained under several aspects.
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