Year-end Sale % OFF 
Abstract
The article presents the continuation of studies of the features of the wheel movement the traditional and perspective constructive scheme on a rail. Unlike the traditional design, the perspective constructive scheme of the wheel allows independent relative rotation of the support surface wheel and of its guide surface (flange) relative to their common axis of rotation. Previous authors’ works did not take into account the influence of the level of slippage in the main contact of the wheel with the rail on the value of the slippage rate in its flange contact. This article further examines the influence of this factor for both wheel designs. The results of the presented studies confirm the possibility of reducing slippage in the flange contact with the rail for a wheel of a promising design scheme in comparison with a traditional wheel. Reducing the power of friction forces in the contact of the wheel flange of a promising design scheme will reduce the resistance to movement of such a wheel along the rail, especially in curved track sections.
Highlights
A wheel with a traditional wheel design of a rail vehicle is characterized by a monolithic design of a wheel tread and a flange
= 0.02 rad. level of the relative slippage ε in the main contact of the wheel with the rail due to the value V1BA, when the wheel is rotating at a speed VW = 20 m/s and with angles to attack ψ = 0.00 rad and ψ = 0.02 rad
The features of the spatial geometry of the wheel/rail contact related with the traditional wheel de-sign cause forced kinematic slippage in the contact point of the wheel flange with the side edge of the rail head in case of a two-point contact
Summary
A wheel with a traditional wheel design of a rail vehicle is characterized by a monolithic design of a wheel tread and a flange. Peculiarities of spatial geometry at the two-point contact of a wheel and a rail deter-mine a high level of forced kinematic slippage in the flange contact The speed of this slippage and the values of the contact forces determine the corresponding power level of the friction forces in the flange contact. When we compare them with other kind of rail vehicles for transport of passengers or goods, trams have usually lower weight and they are designed for lower operation speeds. In cities, these means of transport achieve the optimal way
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
