Abstract
This article deals with the worked out specialized railway carriage for grain for the transportation process throughout the Republic of Uzbekistan railway network, with the unconditional provision of train traffic safety, which is one of the most important components of the rolling stock of railway transport. The features of the load-bearing structure of the railway carriage for grain are that it is made based on a four-axle platform and a universal container. Evaluation of the strength of the metal structure of the grain car was carried out following the requirements of the “Standards for the calculation and design of new and modernized cars of the railways of the Ministry of Railways with a gauge of 1520 mm (non-self-propelled)”. Based on theoretical studies, it was justified that the design of a railway carriage for grain with a capacity of 83.6 m3 and a carrying capacity of 65 tons. For the first test of a railway carriage for grain, the number 43925684 was assigned. The proposed new grain carriage will reduce operating costs and reduce rolling stock downtime during reloading operations. It will create the possibility of fulfilling contractual agreements drawn up for small volumes of traffic within the country.
Highlights
The balance of the freight car fleet of JSC "Uzbekistan Railways" for the period 20172025, which for predicting period was determined based on the expected indicators of freight turnover and the volume of freight traffic by rail in the Republic of Uzbekistan, as well as taking into consideration the daily turnover of wagons, shows that the railways of Uzbekistan are currently experiencing a shortage of a working fleet of freight cars [4,5,6,7]
Meeting the requirement of local transportation of grain cargoes ordered by JSC " Uzbekistan Railways," it was developed the design documentation and manufactured a prototype of a grain carriage (Figure 1) by the specialists of the department "Cars and carriage facilities" of Tashkent State Transport University on the basis of CP "Uztemiryulmashtamir"
For theoretical studies, according to the valuation reformed strained condition of railway carriage's metal structure, it was worked out the computer model of a railway carriage for grain in the SolidWorks software environment (Figure 2, a)
Summary
The unremitting functioning of the transportation process throughout the railway network of the Republic of Uzbekistan, with unconditional provision of train traffic safety, significantly depends on the serviceable car fleet, which is one of the most important components of the rolling stock of railway transport [1,2,3]. In view of the fact that the transportation process constantly requires a serviceable rolling stock, and the process of building freight cars is not able to meet the requirement fully for freight cars, work is underway to modernize cars at the enterprises of JSC " Uzbekistan Railways " [8,9]
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