Results 111 to 120 of about 98,921 (148)

CALCULATION OF TRACTION AND ENERGY CHARACTERISTICS OF METRO WITH DIFFERENT ELECTRIC TRACTION SYSTEMS BY PROGRAM «MATHCAD»

Alternative energy sources in the transport-technological complex: problems and prospects of rational use of, 2015
The article presents the development of a universal program traction and energy calculations for Metro with different electric traction ...
V. Tulupov, null Тулупов, Hong Le Xuan, null Ле Суан   +3 more
openaire   +1 more source

CALCULATION OF TRACTION CURRENT HARMONICS’ INFLUENCE ON TRACK CIRCUIT

World of Transport and Transportation, 2016
[For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version)].ABSTRACT Track circuits, as well as other elements of railway automation, are in the zone of influence of electric rolling stock and, in particular, of traction current.
A. A. Antonov, M. E. Bakin
openaire   +1 more source

Calculation of number of tractions forming at macrodestruction of polymer films

Journal of Contemporary Physics (Armenian Academy of Sciences), 2007
Analysis of mechanical properties of polymer films is carried out for different ways of deformation including scaling and pulling off. An expression is obtained for the number of tractions, which may arise in a polymer film at various deformations.
Z. A. Grigoryan, G. T. Ovanesov
openaire   +1 more source

Method of thermal calculation of the locomotive traction engine armature

Vestnik Mashinostroeniya, 2023
A verification calculation of traction engines of locomotives is proposed, taking into account the temperature mode. Analytical expressions for the static thermal state of the engine are obtained, reflecting the balance of heat release and heat removal powers.
openaire   +1 more source

Calculation of the work done by deformation-dependent tractions

2015
Summary: A generalization of the well-known Nanson's formula for solids has been set up for shells. These formulae relate a surface element vector taken either on the base surface or on the side surface in the reference configuration to any surface element vector in the instantaneous configuration.
Kozák Imre, Szabó Tamás
openaire   +1 more source

Calculation of Synchronous Reluctance Machines Used as Traction Drives

2015 IEEE Vehicle Power and Propulsion Conference (VPPC), 2015
In this paper, the use of synchronous reluctance machines as traction drives for electric vehicles is investigated. For this purpose, a synchronous reluctance machine is designed. In the first step, the machine is optimized for the rated operating point.
Peter Duck, Jonathan Jurgens, Bernd Ponick   +2 more
openaire   +1 more source

Traction calculations taking into account additional data

Transport automation research
The article discusses the technological aspects of automated adjustment of standard train schedules using software robots. The information environment and existing technology for main-taining standard freight train schedules are considered. Information is provided on the implemen-tation of robotic process automation in corporate information systems ...
Iosif Kokurin, Il'ya Pushkin
openaire   +1 more source

Leakage Inductance Calculations in Different Geometries of Traction Transformers

ECTI Transactions on Electrical Engineering, Electronics, and Communications, 2014
Calculating leakage inductances between windings of traction transformer is one of the most important schemes in design procedure. In this paper, analytic, semi-analytic and finite element methods are introduced for electromagnetic modeling of different geometries of the traction transformer.
Davood Azizian, Mehdi Bigdeli
openaire   +1 more source

EMFRail: A Tool to Calculate Rail Traction Electromagnetic Fields

2017 Joint Rail Conference, 2017
EMC/EMI is a source of concern from the beginning of planning a new railway line. High powered electrified railways such as HSR are usually AC electrified. This poses a hazard for nearby systems and users. Induced voltages can create electric shock risks or malfunction in signalling or other nearby systems.
Jorge Garzón, José Carlos Hidalgo, Federico Jorreto, Patricia Cara, Joaquín Ramos   +4 more
openaire   +1 more source

Digital Protection of Traction Network and Setting Calculation Features

2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2018
The reliable operation of DC traction network feeders’ protections is one of the main vehicles problems. The usage of special devices was proposed to solve that problem., but it did not raise the system reliability. Protection devices reacted to one parameter: current., voltage., resistance., heating of current-carrying parts.
Sergey M. Kuznetsov, Dmitry A. Baholdin, Anna V. Kulekina   +2 more
openaire   +1 more source