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Article | 18-June-2020

NOISE CONTROL OF THE BEGINNING AND DEVELOPMENT DYNAMICS OF FAULTS IN THE RUNNING GEAR OF THE ROLLING STOCK

In contrast to traditional systems for monitoring fault of the running gear of the rolling stock, this paper proposes a technology of noise control at the onset of defects. The authors consider the possibility of creating an intelligent system that can perform noise diagnostics with the indication of the beginning of the latent period of the initiation of typical defects preceding faults. To this end, using the noise technology, sets of reference informative attributes are created in the

Telman ALIEV, Tofig BABAYEV, Tahir ALIZADA, Narmin RZAYEVA

Transport Problems, Volume 15 , ISSUE 2, 83–91

Research Article | 27-February-2017

IMPROVEMENT OF WORKING CONDITIONS OF THE FREIGHT LOCOMOTIVE RUNNING GEAR

Summary. 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

George TUMANISHVILI, Tamaz NATRIASHVILI, Givi GOLETIANI, Victor ZVIADAURI, Tengiz NADIRADZE

Transport Problems, Volume 11 , ISSUE 3, 103–109

Article | 25-November-2017

ANALYSIS OF DYNAMICS OF AMETRO VEHICLEMODEL WITH DIFFERENTIALWHEELSETS

Summary. The operating conditions of light rail vehicles (trams, metro vehicles) are predominantly different compared with those of passenger or freight trains. The increased number of low-radii curves has a negative effect on wheel–rail interaction. The general design of light rail vehicle running gear is inherited from passenger trains and adapted to different loads. However, conventional solutions of a running gear may not provide smooth low-radius curve negotiation in all

Rafał MELNIK, Bogdan SOWIŃSKI

Transport Problems, Volume 12 , ISSUE 3, 113–124

Research Article | 24-October-2017

INVESTIGATION INTO THE BIMODAL TRANSPORTATION PROCESS BY MODELLING RAIL MODULE STATES

The bimodal transportation process, which takes into account the modelling of rail module states, has been studied. The article demonstrates marked graphs of rail module states with and without running gear change in operation. It has been established which states have the greatest impact on the probability of a steady mode. The work has considered fractality of arrivals and its range in the queueing system with priorities.

Оleksander LAVRUKHIN, Victor ZAPARA, Yaroslav ZAPARA, Olga SHAPATINA, Ganna BOGOMAZOVA

Transport Problems, Volume 12 , ISSUE 2, 99–111

Research Article | 21-April-2017

Assessing steam locomotive dynamics and running safety by computer simulation

given by design data, and the safety of the ride is impaired. Large unbalanced vibrations were found, affecting not only the fatigue resistance of the locomotive, but also influencing the crew and passengers in the train consist. Developed model and simulations were used to check several possible parameter variations of the locomotive, but the problems were found to be in the original design such that no serious improvements can be done in the space available for the running gear and therefore the

Dāvis BUŠS

Transport Problems, Volume 10 , ISSUE SE, 15–27

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