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Full-Text Articles in Engineering
Study Of The Influence Of An Alternating Magnetic Field On The Operation Of A Current Converter On The Magnetomodulation Effect, Abdurauf Malikovich Safarov, Sarvarbek Khamrayevich Jumaboyev
Study Of The Influence Of An Alternating Magnetic Field On The Operation Of A Current Converter On The Magnetomodulation Effect, Abdurauf Malikovich Safarov, Sarvarbek Khamrayevich Jumaboyev
Journal of Tashkent Institute of Railway Engineers
The paper proposes a design of a device for converting current to voltage with advanced functionality, designed to detect the asymmetry of three-phase currents in both DC and Made AC circuits. theoretical investigations and mathematical model of static characteristics of the Converter from changes in the magnetization curve of the magnetic material under the interaction of two fields generated by modulating current flowing in the modulation coil and an alternating magnetic field with a strength and created during the flow of DC buses DC field strength and shown that the nonlinearity of the dependence really is a principal factor responsible …
About Computer Simulation Of The Structure Of Cellular Concrete With A Tasked Heat Conductivity, Anvar Ishanovich Adilkhodjayev, S.S. Shaumarov, E.V. Shchipacheva
About Computer Simulation Of The Structure Of Cellular Concrete With A Tasked Heat Conductivity, Anvar Ishanovich Adilkhodjayev, S.S. Shaumarov, E.V. Shchipacheva
Journal of Tashkent Institute of Railway Engineers
This article presents the developed mathematical model of the structure of cellular concrete and its computer implementation in the form of a computational software package that allows you to determine pore sizes and characteristics of inter-pore walls, corresponding to the required thermal conductivity of the material. The stages of computer simulation of the macrostructure of cellular concrete are also given.
Three-Way Thermal Model Of Asynchronous Traction Engines For Diagnostics Of Their Technical Condition, Zhavkharbek Sulton Ugli Fayzullaev
Three-Way Thermal Model Of Asynchronous Traction Engines For Diagnostics Of Their Technical Condition, Zhavkharbek Sulton Ugli Fayzullaev
Journal of Tashkent Institute of Railway Engineers
Mathematical models of the thermal processes of traction induction motors are developed. An induction motor is considered as a thermal system consisting of three bodies (stator winding, stator magnetic circuit and rotor), in which heat transfer is taken into account not only between the respective bodies, but also heat transfer between each body and the environment. It is shown that the steady-state excess of the stator winding temperature of a traction induction motor depends on the multiplicity of the stator winding current, the coefficient of electrical energy loss, and also on the temperature coefficient of resistance of the material of …
Mathematical Modeling Of The Structure Cellular Concrete, Anvar Ishanovich Adilkhodjayev, E.V. Shipacheva, S.S. Shaumarov
Mathematical Modeling Of The Structure Cellular Concrete, Anvar Ishanovich Adilkhodjayev, E.V. Shipacheva, S.S. Shaumarov
Journal of Tashkent Institute of Railway Engineers
The article presents the developed mathematical model of the structure of cellular concrete, which allows one to establish pore sizes and characteristics of inter-pore walls corresponding to the required thermal conductivity and strength of the material, and the results of its numerical implementation are presented
Mathematical Models Of Differential Magnetic Circuits Of Converters With Movable Screens And Distributed Parameters, S.F. Amirov, O.T. Boltayev
Mathematical Models Of Differential Magnetic Circuits Of Converters With Movable Screens And Distributed Parameters, S.F. Amirov, O.T. Boltayev
Journal of Tashkent Institute of Railway Engineers
In the article the mathematical models of differential magnetic transducers with movable electromagnetic screens and with distributed parameters, taking into account the magnetic flux scattering, are developed. To develop a mathematical model of the transducer, the distribution expression of magnetic fluxes before the moving and after the moving parts are obtained using the method of magnetic circuit dismemberment, and the resulting magnetic flux is determined by the overlay method. The developed mathematical models showed that the discrepancy between experimental and theoretical results does not exceed 8-11%.
Mathematical Model Of Determining The Optimal Period Of Technical Maintenance Of The Special Self-Propelled Rolling Stock, Z.G. Mukhamedova
Mathematical Model Of Determining The Optimal Period Of Technical Maintenance Of The Special Self-Propelled Rolling Stock, Z.G. Mukhamedova
Journal of Tashkent Institute of Railway Engineers
The article covers the mathematical model for determining the optimum periodicity of maintenance, separately for mechanical, electrical and hydraulic equipment for emergency recovery vehicles
Mathematical Models Of Magnetic Chains Of Electron Electromagnetic Modifiers With Fluid Meter Measuring Fluid Surface, S.F. Amirov, A.O. Ataullaev, S.H. Jumabaev
Mathematical Models Of Magnetic Chains Of Electron Electromagnetic Modifiers With Fluid Meter Measuring Fluid Surface, S.F. Amirov, A.O. Ataullaev, S.H. Jumabaev
Journal of Tashkent Institute of Railway Engineers
Mathematical models of magnetic circuits of electromagnetic flow transducers with an annular channel have been developed, taking into account the distribution of the parameters of the magnetic circuit and leakage fluxes closed through non-working air gaps. The possibility of compensating for the difference in magnetic resistance of coaxially arranged concentric ferromagnetic cores due to the difference in their circumference by selecting the thickness of the cores is shown.