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Civil and Environmental Engineering Commons

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Ministry of Higher and Secondary Specialized Education of the Republic of Uzbekistan

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Full-Text Articles in Civil and Environmental Engineering

Numerical Studies On The Model Of The Modernized Unit Of The Cradle Suspension Of The Vl-80s Electric Carrier While Moving In Curves, G.A. Khromova, I.S. Kamalov, M.A. Маkhаmаdаlieva May 2021

Numerical Studies On The Model Of The Modernized Unit Of The Cradle Suspension Of The Vl-80s Electric Carrier While Moving In Curves, G.A. Khromova, I.S. Kamalov, M.A. Маkhаmаdаlieva

The Scientific Journal of Vehicles and Roads

The article presents the results of numerical studies of the stress-strain state of elastic rods of variable cross-section and mass, taking into account the elastic fixing of the ends for the cradle suspension unit of the electric locomotive (for example, the VL-80s electric locomotive) with a harmonic external influence that occurs when the electric locomotive moves along a path with periodic irregularities on straight sections and in curves, an algorithm and a program for the MathCAD 15 programming environment were developed.


Evaluation Of The Efficiency Of Diesel Locomotives On The Section Of Marokand - Kattakurgan Of Uzbek Railway, Oleg Sergeyevich Ablyalimov, Jasur Djura Ug'li Khodjiyev Jun 2020

Evaluation Of The Efficiency Of Diesel Locomotives On The Section Of Marokand - Kattakurgan Of Uzbek Railway, Oleg Sergeyevich Ablyalimov, Jasur Djura Ug'li Khodjiyev

Journal of Tashkent Institute of Railway Engineers

A comparative analysis of the efficiency of using diesel traction locomotives in the Marokand - Kattakurgan section of the Uzbek Railway for freight trains with and without stops at intermediate stations, siding and separate points is given. Mathematical models of conducting freight trains by diesel-powered locomotives were developed, specific resultant forces of the train were calculated and built in the modes of traction, idling and braking, curves of the speed of movement and time of the train on the considered real railway section. The kinematic parameters of the movement of freight trains and the main energy indicators of the transportation …


To The Conclusion Of The Variational Equation Of Motion Of Shell Structures Supported By Frames And Stringers, Farkhod Erkinovich Abdukadirov Mar 2020

To The Conclusion Of The Variational Equation Of Motion Of Shell Structures Supported By Frames And Stringers, Farkhod Erkinovich Abdukadirov

Journal of Tashkent Institute of Railway Engineers

In this article is given the construction of the variational equation of motion of the shell structure supported by frames and stringers. Using the Hamilton - Ostrogradsky variational principle, systems of differential equations of motion of shell elements are obtained.


The Method Of Calculating The Middle Simple Locomotive And The Train Composition In The Turnover Point Based On The Modeling In The Conditions Of A Pair Traffic Of Trains, M.N. Masharipov Nov 2019

The Method Of Calculating The Middle Simple Locomotive And The Train Composition In The Turnover Point Based On The Modeling In The Conditions Of A Pair Traffic Of Trains, M.N. Masharipov

Journal of Tashkent Institute of Railway Engineers

The article developed a method for calculating the average downtime of a locomotive and the composition of a train at a turnaround point based on modeling in a pair train schedule. As a result of this, it is scientifically substantiated that strict adherence to the principle “trains do not expect a locomotive” will lead to a significant increase in the cost of locomotive hours at the point of turnover