Research Article
The energy efficiency increase problem for railway rolling stock pneumatic systems compressed air preparation is directly connected with its purification and drying technology choice. In the presented materials in the article, the authors find a solution to the problem based on realization analysis of different factors that affect compressed air quality, purification and drying technology choice, as well as based on energy efficiency analysis. To realize the energy-saving events at railway
Tatiana RIPOL-SARAGOSI,
Leonid RIPOL-SARAGOSI,
Igor SMYCHOK
Transport Problems , ISSUE 4, 13–21
Article
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 , ISSUE 2, 83–91
Research Article
Breakdown of rolling stock axle-boxes if not detected in due time may cause a rail accident or disaster. At present, a lot of advanced technologies, modern equipment and devices, which “recognizes” faulty axle-boxes when the train is in motion, have been implemented. However, the timely identification of breakdown of rolling stock axle-boxes still is an acute problem, the initial stage of damage emergence being especially problematic. Presently, rolling stock axle-box breakdown is determined
Olegas LUNYS,
Stasys DAILYDKA,
Gintautas BUREIKA
Transport Problems , ISSUE 1, 105–114
Article
The model of service maintenance and repair of passenger rolling stock is considered as a multi-channel system. The presented model is implemented on the queuing model basis. The service maintenance and passenger rolling stock system stipulates not only for the transition to a new level of the maintenance system as a type of activity but as a means boosting up the economic growth rate and living standards. As a result, we managed to resolve the problem of the optimum design for the service
Dmitry BANNIKOV,
Nina SIRINA,
Alexander SMOLYANINOV
Transport Problems , ISSUE 3, 5–14
Article
Nowadays, wayside measurement systems of wheel-rail contact forces have acquired great relevance for the monitoring of rolling stock, especially for freight trains. Thanks to these solutions, infrastructure managers can check and monitor the status of rolling stock and, when necessary, impose corrective actions for the railway companies. On the other hand, the evaluation of contact forces is part of the rolling stock authorisation process [1] and a mainstone for the study of the running
Daniele CORTIS,
Stefano GIULIANELLI,
Gabriele MALAVASI,
Stefano ROSSI
Transport Problems , ISSUE 4, 91–100
Research Article
The article presents the solution for the problem of optimal distribution of electric locomotives in repair enterprises for carrying out repairs in the frame of technical service - 8 (ТS-8) and increased technical service - 8 (ITS-8). The aim of the study is to improve the efficacy of a rolling stock with a simultaneous decrease in the total expenses connected with the repair of locomotives and their transportation in repair enterprises. This is possible due to a reduction in the requirement
Seidulla ABDULLAYEV,
Janat MUSAYEV,
Temyrbay CHIGAMBAEV,
Saken MALYBAYEV,
Gabit BAKYT,
Assylbek TOILYBAYEV
Transport Problems , ISSUE 2, 19–29
Research Article
Yuri Y. OSENIN,
Douma Mansur AL-MAKHDI,
Oksana SERGIENKО,
Igor SOSNOV,
Aleksei CHESNOKOV
Transport Problems , ISSUE 1, 63–71
Research Article
The publication reflects the research results of the rationalization of the rolling stock use of JSC LG Lithuanian railways to increase the reliability indicators of the freight diesel locomotive exploitation reliability. The comparative evaluation of the exploited freight diesel locomotive work duration, according to the technical documentation, by using comparative test results and indirect diesel reliability criteria approved in practice. An algorithm of work duration forecasting methodology
Sergejus LEBEDEVAS,
Galina LEBEDEVA,
Stasys DAILYDKA,
Gediminas VAIČIŪNAS
Transport Problems , ISSUE 4, 45–55
Research Article
calculation methodologies and their results can give significant errors. The work presents a methodology that makes it possible to evaluate the efficiency of unit train shipments based on the processing of results of experimental travels using the methods of mathematical statistics. This approach provides probabilistic estimates of the rolling stock use efficiency for different approaches to the organization of car traffic volumes, as well as establishes the effect for each of the participants in the
Dmytro KOZACHENKO,
Roman VERNIGORA,
Volodymyr BALANOV,
Nazar SANNYTSKYY,
Nikolay BEREZOVY,
Tetiana BOLVANOVSKA
Transport Problems , ISSUE 3, 91–101
Article
both freight and passenger rolling stock. Our research is directed to develop a control system for a four-phase SRM. The procedure of fuzzy-regulator synthesis is presented. A physical model of a switched reluctance drive is created, namely, it is a system of a wheel set and a motor. The efficiency of the control system with different types of speed regulators was checked and their main quality indicators were determined. According to the results of the analysis, it was found that the fuzzy
Serhii Buriakovskyi,
Artem Maslii,
Olga Pasko,
Ihor Denys
Transport Problems , ISSUE 2, 69–79
Article
, i.e., a subsystem for noise control of the onset of the initiation and dynamics of development of changes in the technical condition of the rolling stock, railroad tracks, bridges, tunnels, and other railroad infrastructure facilities.
Telman ALIEV,
Tofig BABAYEV,
Tahir ALIZADA,
Narmin RZAYEVA
Transport Problems , ISSUE 3, 155–162
Research Article
rolling stock, tracks and equipment, interfere with the transportation of iron ore. The primary objective of the iron ore transport is to meet the daily loading and unloading schedules and minimize queues by maximizing the operations at the loading and unloading points. The VMR simulator developed uses macro-mesoscopic approach with Monte Carlo simulation. To validate the simulator, we used actual data of the railway and compared with reality. We obtained a very good adhesion to the value of 2.9% for
Carlos Henrique Fernandes de FARIA,
Marta Monteiro da Costa CRUZ
Transport Problems , ISSUE SE, 125–139