Articles published in the issue 5, 2018

High frequency vibrations in the elements of the rolling stock on the railway bridges

Keywords: railway bridge, track structure, vehicle, high frequency vibrations, viscoelastic damper, the speed of the crew, the dynamic load.

Loktev Alexey — doctor of physical and mathematical Sciences, head of the Department «Transport building» of the Russian University of Transport (MIIT). Moscow, Russia. E-mail: aaloktev@yandex.ru

Galuh Pavel — Ph.D, associate Professor of the Department «Transport building» of the Russian University of Transport (MIIT). Moscow, Russia. E-mail: Раgeluh@gmail.com

Korolev Vadim — Ph.D, associate Professor of the Department «Transport building» of the Russian University of Transport (RUT (MIIT). Moscow, Russia. E-mail: Korolevadim@mail.ru

Abstract. The publication examines the emergence of high frequency vibrations in the elements of the rolling stock and the railway track during the passage of vehicles on bridges. For oscillation of the superstructure is proposed to use a viscoelastic damper at the place of intersection of the superstructure and transom I-beam supports, as a visco-elastic element is proposed to use an element of type Kelvin-Voigt. Installation of damper in the form of Jack or a damping device on a support, which is based on the span of the railway bridge, allows for the regulation of the speed of the crew on the roadway, depending on the viscosity and elasticity of the damping device or Jack, and the regulation of dynamic loads.

The wagon-detector of new generation VD-UMT-1 No. 174M

Keywords: VD-UMT-1 flaw detector car No. 174M, non-destructive testing, rail defects, video control, the heavy high-speed traffic.

Fedotov Alexander — deputy chief of the car defectoscope VD-UMT-1 № 174M DIСDM, JSC «Russian Railways». Moscow, Russia. E-mail: fedotov.a73@mail.ru

Fazilova Zulfia — Ph.D, associate professor of the Department of «Transport construction», Russian University of Transport (MIIT). Moscow, Russia. E-mail: fazil_1905@mail.ru

Abstract. The article examines and discusses the expediency of using the VD-UMT-1 flaw detector №174М in the area of intensive high-speed suburban traffic on the example of the Moscow central ring.

About the methodology of planning costs for the current operation of the railway track

Keywords: direct costs, current operation of the railway, railway infrastructure, annual budget, line, regional and central budgets, autumn commission inspection, labor costs, material costs, machine maintenance costs, program-target planning, standards for resource consumption, TSC (TNC), IARC (COSP).

Volkov Boris — doctor of economics, professor of the Department of «Design and construction of Railways», Russian University of Transport (MIIT). Moscow, Russia. E-mail: volkov-miit@yandex.ru

Kovalenko Nikolay — D.Sci., professor of the Department of «Railway track and railway facilities», Russian University of Transport (MIIT). Moscow, Russia. E-mail: kni50@mail.ru

Dobrin Aleksey — assotiate professor of the Department of «Construction business economy and property management», Russian University of Transport (MIIT). Moscow, Russia.

E-mail: a.dobrin@myief.ru

Kovalenko Alexander — postgraduate student of the Department of «Economy», Russian Academy of Railways (MIIT). Moscow, Russia. E-mail: alexnikkovalenko@gmail.com

Abstract. The methodology is designed to determine the direct costs for the current operation of the railway infrastructure at the linear, regional and central levels, taking into account the classification and specialization of the railway lines within the framework of annual budget. The methodology is based on the formation of costs, taking into account the volume of the production plan for the distance of the track, formed by the production and technical department in accordance with a complex assessment of the state of the railway infrastructure on the basis of the autumn commission inspection.

Diagnostics of special rolling stock based on the application of the law of distribution of extreme values

Keywords: law of distribution of random variables, rolling stock of railways, residual resource, diagnostics, load-bearing structures, increase of informativeness.

Sychev Petr — engineer, undergraduate student of MIIT in the field of 23.04.02 «Ground transport-technological complexes».

E-mail: petr@vpm770.ru

Abstract. When calculating the residual life, the law of distribution of the results of diagnostic measurements of the bearing structure of the rolling stock is normal or in the form of a Weibull distribution. The article shows how it is possible to reduce the number of measurements during diagnostics while maintaining the level of reliability of the study, applying the law of distribution of extreme values.