Contacts

А. S. Kononenko, S. V. Mozgrin, А. А. Prismotrova, A. Kh. Yuldashev. Innovative Transport Technology As a Tool for Expanding Rail and Long Product Flat Car Operation [more] [back]

Purpose: To analyse and identify the advantages and disadvantages of rail transportation operations based on a review of existing methods; to determine the most promising transportation method for further development. To demonstrate the possibility of using the existing flat cars with improved functionality without modernization. To develop a re-usable rail fastener unit (hereafter referred to as RFU) and to carry out calculations and tests on a 13-6903 standard fitting platform model. To ensure that the by means of RFU doesn't exceed the load from the containers. Methods: Development and testing of the RFU and fitting platform in accordance with GOST 33211— 2014, “Specifications for placing and securing freight rail wagons and containers” No. CM-943, “Specifications for placing and securing of cargo” (Annex 3 to the Agreement on International Carriage of Goods by Rail). Results: A promising method for the transportation of 25-m long rails that does not require any special railway vehicles has been selected and validated. An RFU has been developed and its basic parameters have been confirmed based on the results of tests and trial operation. A possibility of using container flat wagons for rails transportation has been demonstrated. The load has been securely fastened and transport safety has been ensured. The use of disposable fasteners has been avoided. The possibility of transporting an empty RFU by any means of transport was demonstrated, as was the convenience of compact stacking and storage. The simplicity of the design (without the use of technically sophisticated and expensive components), the interchangeability of the RFU components and the ease of repair and replacement of individual elements have been demonstrated. Practical significance: The use of the RFU takes the handling of 25m rails and long products to a whole new level. Keywords: Rail transportation, re-usable fastener unit (RFU), flat car/fitting platform, container flatcar

A. O. Kazarova, E. V. Login, G. A. Mashkovtsev. teleInvestigation of Incident and Configuration Management Algorithms Using Simulation Modelling [more] [back]

Purpose: To develop a simulation model for the management of incidents and configurations of a telecommunication network (TNC), followed by a comparative analysis of different operational scenarios. Methods: The simulation model was developed using the AnyLogic software, with a probabilistic approach employed for modelling various events. Results: Three scenarios have been developed: the operation of two algorithms together, the operation of the incident management algorithm, and the operation of the configuration management algorithm. The integrated use of the algorithms has been found to provide the shortest average cycle time for management. The impact of varying the Pw probability on the model’s behaviour and algorithm performance has also been examined. Practical significance: The developed model can be applied in realworld conditions when designing automated TNC management systems. It allows forecasting the effectiveness of different management approaches, optimising incident response processes, and justifying the implementation of algorithms in telecommunications facilities. Keywords: Simulation modelling, management, incident, configuration, algorithm, telecommunications network, AnyLogic environment, model, scenario, probabilistic parameter

E. A. Belykh, A. I. Safronov, U. A. Starovoitova. A Mobile Application for Railway Infrastructure Diagnostics [more] [back]

Modern diagnostic and monitoring technologies for railway infrastructure play an important role in ensuring safety and contribute to improved efficiency of freight and passenger transportation. Purpose: To analyse national and international experience in the development of mobile workstations in order to assess the possibility of their application in the field of railway infrastructure diagnostics and of the reengineering of existing software and hardware solutions that do not meet modern requirements in terms of ergonomics, maintainability and scalability. Methods: A formal description of the project’s information support was carried out, the existing software for railway infrastructure diagnosis was re-engineered with its advantages and disadvantages demonstrated, and a data flow diagramme in Gein-Sarson notation was created to describe the technological process of a mobile workplace. Results: A prototype of an operator’s mobile workplace for diagnosing the condition of railway tracks and switches has been created. The created prototype has been launched on a standard smartphone with the Android operating system pre-installed, and its operation has been described. The conclusions have been drawn on the basis of the prototype results. Practical significance: The mobile workplace of the operator-controller monitoring the condition of railway tracks and switches is implemented on the basis of a stack of modern information technologies such as a cross-platform framework NET MAUI, which provides the ability to run software in various operating systems. Keywords: Railway infrastructure diagnostics, mobile workplace, technical system scalability, .NET MAUI framework application, track condition monitoring, switches’ condition monitoring