The Determination of Admissible Speed of Locomotives on the Railway Tracks of the Republic of Kazakhstan

Abdullayev, Seidulla; Tokmurzina, Natalyа; Bakyt, Gabit

doi:10.20858/tp.2016.11.1.6

Cited by 8 publications

(8 citation statements)

References 3 publications

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“…Due to the input of Technical regulations of the Customs Union of TR CU 003/2011 "About safety of infrastructure of railway transport", TR CU 001/2011 "About safety of the rolling stock" has arisen need of updating of the specifications and technical documentation regulating safe service conditions of the rolling stock and a railway track. Processing of the specifications and technical documentation is carried out taking into account requirements of the International union of the railroads (Union Internationale des Chemis de Fer) and the international standards [3][4][5].…”

Section: Interaction Of Frame Structures With Rolling Stockmentioning

confidence: 99%

Interaction of Frame Structures With Rolling Stock

Abdullayev¹,

Bondar²,

Bakyt³

et al. 2021

News of NAN RK. SGTS

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Need of use of mobile measuring computer systems when performing diagnostics of bridges is shown and also the analysis of amplitude-phase-frequency characteristics frame reinforced concrete and metal flying structures of railway bridges is provided at the movement of the train. This in turn allows to estimate conditions of span structures by width of ranges in points of half energy of spectral curve in the area of resonances. Assessment of technical condition and diagnostics of supported artificial structures is carried out according to dynamic parameters. According to this method frequency of natural oscillations is determined from peak values of averaged spectral densities of reduced power. Comparing width of the received ranges to ranges of the new (intact) flying structures it is possible to estimate degree of wear and a damage rate of elements of designs. Based on the results of the calculations, it has been confirmed that the inclusion of elements of the bridge web and the upper structure of the track in the joint work with the main bearing structures increases the accuracy of solving the problem of determining natural frequencies.

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Section: Interaction Of Frame Structures With Rolling Stockmentioning

confidence: 99%

Interaction of Frame Structures With Rolling Stock

Abdullayev¹,

Bondar²,

Bakyt³

et al. 2021

News of NAN RK. SGTS

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“…; aua is horizontal unbalanced acceleration, aua=0,7 m/s 2 . Table 2 shows the limits of speed for locomotives of the series KZ4AС, KZ8A, ТE33А for typical path construction [15]. Table 2 Permissible speed of the locomotives series KZ4AС, KZ8A, ТE33А for typical path construction…”

Section: Data Analysis and Resultsmentioning

confidence: 99%

“…During the dynamic and travel testing, and other technical documentation, the basic settings of locomotives are distinguished needed for the calculation of the path of strength. The estimated parameters are given in Table 1 [15].…”

Section: Methodsmentioning

confidence: 99%

Investigation of the Stress-Strain State of a Wheel Flange of the Locomotive by the Method of Finite Element Modeling

Zhussupov¹,

Toktamyssova²,

Abdullayev³

et al. 2018

mech

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“…However, the deterioration of the mininggeological conditions of underground coal mining (lowthickness seams, great depths, increased rock pressure, dangerous gas-dynamic phenomena) limits production volumes, increases the cost of coal and affects the growth of miners' injuries (Nosal et al, 2021;Rylnikova and Mitishova, 2021). The high cost of transporting natural minerals also has a significant impact on pricing and logistical difficulties (Abdullayev et al, 2016;Zhussu pov et al, 2018;Bakyt et al, 2020;Abdullayev et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Use of Magnetic Fields for Intensification of Coal Gasification Process

Lozynskyi

Falshtynskyi

Saik

et al. 2022

MGPB

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Underground coal gasification is an alternative method for mining coal from thin and ultra-thin seams, which enables conversion of solid fossil fuels into combustible gases at the site of coal occurrence. At the same time, in the case when the coal seam thickness is critically small for the effective course of thermochemical reactions, it is necessary to intensify the gasification process. This paper studies one of the possible methods to intensify the process of underground coal gasification due to the influence of magnetic fields on the injected blast supplied into the gas generator gasification channel. Research tests conducted on a bench setup confirm the effectiveness of injected blast activation in a magnetic field by creating magnetic field inhomogeneity by placing permanent magnets and a discrete solid magnetized phase in a special device. For the first time, the dependence of changing growth of carbon participation during the solid fuel gasification process on changing magnetic field strength in the range of 0-600 E has been determined. It has been proven that the injected blast magnetization can significantly intensify the underground gasification process by increasing the carbon participation share in the fuel, which may be of practical importance for increasing the yield of combustible components.

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The Determination of Admissible Speed of Locomotives on the Railway Tracks of the Republic of Kazakhstan

Cited by 8 publications

References 3 publications

Interaction of Frame Structures With Rolling Stock

Interaction of Frame Structures With Rolling Stock

Investigation of the Stress-Strain State of a Wheel Flange of the Locomotive by the Method of Finite Element Modeling

Use of Magnetic Fields for Intensification of Coal Gasification Process

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