Results 71 to 80 of about 6,600 (168)

Monitoring system of electrodynamic braking of DC electric train with collector traction motors

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2018
High proportion of electric trains with collector trac-A monitoring system of electrodynamic braking has been develotion motors in the multiple unit fleet and its low cost in comparison ped with preservation of the electric train standard equipment.
V. A. Baranov   +3 more
doaj   +1 more source

Numerical modelling of train pulling off with incomplete brake release

open access: yesВестник Научно-исследовательского института железнодорожного транспорта
Introduction. Unsteady train movement causes abrupt changes in the traction magnitude with oscillating and sometimes shocking relative movements of the cars.
E. A. Potakhov
doaj   +1 more source

Peculiarities of metal work in the defect formation zone of a monoblock crossing

open access: yesВестник Научно-исследовательского института железнодорожного транспорта
Introduction. The paper analyses the causes of appearance and development of defects of the solid block with wing rails and welded rail ends (monoblock crossing) operating under heavy and intensive traffic conditions.
P. V. Tregubchak
doaj   +1 more source

Generation of geometric irregularities as random disturbances causing rail cab oscillations

open access: yesВестник Научно-исследовательского института железнодорожного транспорта
Introduction. Solving the dynamics problems of rail cabs requires specifying the kinematic disturbance of their oscillations represented through equivalent vertical and horizontal geometric irregularities of the left and right rails.
A. N. Savoskin, N. S. Lavlinskaya
doaj   +1 more source

Railroad Engineering: Hands-On Experience

open access: yes
2018PDFTech ReportNURail2017-RHIT-E02DTRT13-G-UTC52 (Grant 2)Planning and designConstructionRailroad trainsEngineeringDesign engineeringCollege StudentsCurriculaEducationOperationsRailroad EngineeringTransportation CareersUnited StatesNational University

core  

Comparative analysis of ultrasonic control sensitivity in using straight and angle piezoelectric transducers of different manufacturers on the example of flaw detector UD2-102 Peleng

open access: yesВестник Научно-исследовательского института железнодорожного транспорта
Introduction. Railway transport has ultrasonic control as one of the main methods of detection of defects of the type of continuity violation (cracks, pores and others) both in the base metal and in weld seams of various items.
A. G. Otoka, O. V. Kholodilov
doaj   +1 more source

Rail steel contact fatigue curves

open access: yesВестник Научно-исследовательского института железнодорожного транспорта
Introduction. The problem of contact fatigue damage of rails has become especially urgent with the intensified railway freight load. An effective method of studying various damage factors is mathematical simulation of the dynamics of motion and ...
V. I. Sakalo, A. V. Sakalo
doaj   +1 more source

Speed curve analysis-based determination of additional resistance to train motion from undercarriage generators

open access: yesВестник Научно-исследовательского института железнодорожного транспорта
Introduction. Traction calculations take into account additional resistance to train motion from the action of undercarriage generators using statistical data from field tests of rolling stock samples.
I. O. Lobytsin   +5 more
doaj   +1 more source

Ensuring transportation under turnout switches loads exceeding design and regulatory criteria

open access: yesВестник Научно-исследовательского института железнодорожного транспорта
Introduction. The need to rapidly increase the volume of railway transport is ensured by the use of heavy-load trains of increased weight and higher carriage axle loads.
B. E. Glyuzberg   +2 more
doaj   +1 more source

Current state and prospects of development of energy-optimal control systems for 2ES6 electric locomotives

open access: yesВестник Научно-исследовательского института железнодорожного транспорта
Introduction. The research focuses on the current state and prospects of development of the systems of energyoptimal train driven by freight main line DC electric locomotives 2ES6.
S. G. Istomin   +3 more
doaj   +1 more source

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