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This work is focused on the possible ways of improving the running
safety of a railway vehicle, which uses IRWs (independently rotating wheels) in
a bogie. It discusses the main positive and negative properties of an application of
IRWs for a railway vehicle while it is running in a curve. There are evaluated
running properties of a railway vehicle in terms of safety for IRWs and a standard
wheelset (SW). It is assumed that a wheelset design with IRWs will reduce the risk of derailment of a railway vehicle in a curve with a smaller radius because it will
be reached a more favourable distribution of decisive forces in the wheel/rail
contact. A designed wheelset with IRWs differs from other IRWs designs; in this
case, only a flange can rotate independently from a wheel treat surface about the
axis of rotation. Further, this research presents an analysis of a friction forces
distribution of the friction forces in a contact of a flange and a rail head and a
comparison with an SW. The obtained results allow concluding that it is advisable
to use the wheels with the perspective wheel design (including independently
rotating) to reduce the resistance to movement and improve the running properties
of a railway vehicle for safety.
