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Improvement of working conditions of the freight locomotive running gear

Tumanishvili G., Natriashvili T., Goletiani G., Zviadauri V., Nadiradze T.

Transport Problems

2016

T. 11, z. 3

103--109

To improve the working conditions of the electric locomotive running part, it is necessary to decrease unsprung masses, lateral loads and the angle of attack and provide the third body with proper tribotechnical properties. A new scheme of the freight electric locomotive running gear is elaborated in the work, which ensures a decrease of unsprung masses, relative sliding of a wheel on the rail and an angle of attack that provides resistance to the destruction of the third body in the contact zone.

Для улучшения условий работы ходовой части электровоза зону контакта колеса и рельса необходимо уменьшить необрессоренные массы, поперечные силы и угол атаки и обеспечить наличие третьего тела с необходимыми триботехническими свойствами. В работе приведена новая схема ходовой части грузового электровоза, которая позволяет уменьшить относительную скорость скольжения колеса по рельсу и угол атаки, что повышает устойчивость третьего тела к разрушению.

Loading and damageability of wheels and rails

Tumanishvili G., Chelidze M., Zviadauri V.

Transport Problems

2009

T. 4, z. 4

33-42

Friction, rolling resistance and durability of rails and wheels at operation, belong to a number of the most important problems of railway transportation because they have strong impact on derailment, energy consumption and restorative maintenance. Various aspects of these problems are insufficiently investigated, have only partial solution. The sources of creep and slipping of a wheel on a rail and ways of its reduction are specified in the work. These approaches alongside with the traditional methods (lubrication, radial steering bogie, etc.) will ensure the reduction both the power and the thermal loading of the contact zone and wear rate of rails and wheels