Effects of variations in form of wheel profiles in operation on dynamic qualities of freight cars and indices of their interaction with railway track
Journal Title: Технічна механіка, Техническая механика, Technical Mechanics - Year 2017, Vol 1, Issue 1
Abstract
The work objective is to study the effects of variations in the form of the wheel profiles in operation on the dynamic qualities of the freight cars and the indices of their interactions with the rail track. The paper presents the results of studies in the effects of variation in the form of the wheel profiles in wear on the dynamic qualities and the indices of interactions between the gauge and the two open cars with complexly retrofitted bogies of the 18-100 type and the ITM-73 wheel profile, and the 18-100 standard car with the produc-tion bogies and the standard wheels. Dynamic qualities of the above vehicles in running on straight tracks with random disturbances correspond-ing to its good state are analyzed. It is demonstrated that variations in the form of the wheel profiles in wear result in the deterioration of dynamic qualities of both unloaded and loaded cars, during which a standard car suffers largely than the vehicle with complexly retrofitted bogies. The effects of variations in the form of the wheel profiles on the indices of interactions between the cars and the gauge in running on straight track are estimated. It is shown that the characteristics of interactions between the vehicles and the gauge are improved in a rapid wear of the wheels.
Authors and Affiliations
V. Ushkalov, T. Mokriy, I. Malysheva, N. Bezrukavyi
Keywords
Related Articles
- EP ID EP324337
- DOI -
- Views 88
- Downloads 0
Studies in effects of increase in diameters of body central bearing and thrust bearing of freight car on its dynamic performance on curved tracks
The paper focuses on evaluation of the effects of increased diameters of the center plate and center bowl of the freight car running on curves on its dynamic qualities. During the last decades the research in improvement...
Determination of stressed-strained conditions for structure of space stage of liquid launch vehicle under longitudinal oscilla-tion
Longitudinal oscillation of liquid launch vehicle due to the longitudinal instability result in additional loads of structural elements. Those dynamic loads must be considered for the strength computations of structural...
Development of theory and technology of fine grinding
The research results of the development of a fine grinding theory and a technology for various materials ob-tained at the Institute of Technical Mechanics (ITM) of the National Academy of Sciences of Ukraine and the Stat...
Special Effects of Boundary Conditions on Distribution of Elastic-Viscous- Plastic Waves into Bars Made from Delayed Fluidity Material
Based on an electromechanical model of an ideal elastic-viscous-plastic material with delayed fluidity, the propagation of elastic-viscous-plastic waves through a semi-infinite bar is considered. The problem is solved in...
Estimation of dynamic loads on a reference train with a passive safety system in its collisions with an identical train and a freight car
New high-speed passenger cars for 1520 mm gage railways must be designed taking into account passive safety systems (PSSs) for collision protection. A PSS includes energy absorbing devices (EADs), which protect the passe...