Analysis of freight wagons technical condition at the international division point

Innotrans ◽  
2019 ◽  
pp. 42-46
Author(s):  
Guzal A. Kamaretdinova ◽  
◽  
Anastasia Y. Volkova ◽  
2021 ◽  
pp. 18-31
Author(s):  
I.V. Gladkykh ◽  
◽  
N.V. Lupitko ◽  

The article deals with the study of the negative effects of the COVID-19 pandemic on the world economy. The impact on industrial production and particularly on machine-building industry of Ukraine is considered. The figures of freight and passenger cars manufactured by plants of Ukraine are given. The issue of importing old-aged freight wagons to the territory of Ukraine, which caused an overbalance of life-expired wagons, was considered. This has become a huge problem at such challenging times for domestic freight wagons manufacturers. The activities aimed at bringing the current technical condition of wagons with expired service life to normative condition, reducing the risks of man-made disasters, increasing the competitiveness of rail transportation and engaging the operators of freight cars in the purchase of new freight wagons manufactured by Ukrainian producers are proposed. The paper presents the results of the impact of quarantine restrictions on railway transport. The data on the drop in railway transportation caused by the pandemic in Ukraine and in the countries of the European Union, and the results of the comparative analysis are given. The volumes of the downfall in the production of freight cars and their reasons are analyzed, suggestions on the overcoming the crisis in machine building industry are defined, which will allow to resume the work of rail transport and related industries. This provides a real vision of the possible course of economic processes that will have an immediate effect on the standards of the social life. Key words: economic crisis, COVID-19, economic recession, industry, machine-building industry, railway transport, railcar-building industry, freight transportation, passenger transportation, EU railways.


2017 ◽  
Vol 11 (3) ◽  
pp. 210-216 ◽  
Author(s):  
Marek Płaczek ◽  
Andrzej Wróbel ◽  
Andrzej Buchacz

AbstractPaper presents a report of a research work that concerns possibilities of freight wagons modernization using new composite materials. The main aim of presented work was to verify the possibility of inference from the dynamic response of the wagon about the changes in its technical condition. During the presented works tests on real objects were carried out using Macro Fiber Composite (MFC) piezoelectric transducers glued to the freight wagon’s frame. The dynamical response of the wagon was measured while the object was driving. On the next stage the measured signal was generated on a laboratory stand using electrodynamic modal shaker and vibrations of the laboratory model were measured. Measured signals were juxtaposed on charts and analysed. The aim of this work was to verify if it is possible to detect the change in the system using measurements of vibrations that are being generated during exploitation of the freight wagon.


2020 ◽  
pp. 43-50
Author(s):  
A.S. Komshin ◽  
K.G. Potapov ◽  
V.I. Pronyakin ◽  
A.B. Syritskii

The paper presents an alternative approach to metrological support and assessment of the technical condition of rolling bearings in operation. The analysis of existing approaches, including methods of vibration diagnostics, envelope analysis, wavelet analysis, etc. Considers the possibility of applying a phase-chronometric method for support on the basis of neurodiagnostics bearing life cycle on the basis of the unified format of measurement information. The possibility of diagnosing a rolling bearing when analyzing measurement information from the shaft and separator was evaluated.


2019 ◽  
Vol 03 (03) ◽  
pp. 16-19
Author(s):  
E.K. Mukhutdinova ◽  
◽  
K.G. Abdul'minev ◽  
A.I. Kolyshkina ◽  
V.R. Tukaev ◽  
...  

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