Results 21 to 30 of about 37,928 (312)

Synthesis of the Current Controller of the Vector Control System for Asynchronous Traction Drive of Electric Locomotives

open access: yesEnergies, 2022
This paper deals with the analysis of the operating conditions of traction drives of the electric locomotives with asynchronous traction motors. The process of change of the catenary system voltage was found to have a stochastic character.
S. Goolak   +7 more
semanticscholar   +1 more source

The impact of aerodynamics on fuel consumption in railway applications [PDF]

open access: yesINCAS Bulletin, 2012
The main consequence of on air flow surrounding a moving train resides in the aerodynamic drag and a certain pressure distribution on the frontal and lateral surfaces of the vehicle.
Bogdan TARUS, Ioan SEBESAN
doaj   +1 more source

METHOD OF SPECTRAL ANALYSIS OF TRACTION CURRENT OF AC ELECTRIC LOCOMOTIVES

open access: yesTransport, 2021
An improved method for spectral analysis of traction current of an Alternating Current (AC) electric locomotive is considered in the article. A new method of spectral analysis considers the change in voltage in the catenary system as a non-deterministic,
S. Goolak   +3 more
semanticscholar   +1 more source

Development of enhanced method for planning train locomotives ready to operate the next day [PDF]

open access: yesE3S Web of Conferences, 2023
A series of methods for planning the use of train locomotives has been developed. However, existing scientific research does not clearly specify how the arrival and departure times of freight trains are determined in train schedules, and locomotives are ...
Masharipov Masud   +5 more
doaj   +1 more source

Justification of the use of a vegetal additive to diesel fuel as a method of protecting underground personnel of coal mines from the impact of harmful emissions of diesel-hydraulic locomotives

open access: yes, 2021
Equipment with diesel engines is used in all mining enterprises. Monorail diesel transport is of great importance in coal mines, as it facilitates the heavy labor of workers when transporting materials and people, fixing mining workings, refueling and ...
G. Korshunov   +2 more
semanticscholar   +1 more source

Stray Currents on Direct - Current Railways in Slovenia

open access: yesCommunications, 2009
DC stray currents are currents which do not flow through designed conductors but along the path of least resistance. These currents are very harmful to various metallic structures and lead to corrosion in the long term. The most significant sources of DC
Bojan Cene
doaj   +1 more source

Locomotion of Spirilla

open access: yesBiophysical Journal, 1972
The hydromechanics of spirilla locomotion is analyzed by considering the balance of both rectilinear and angular momenta of the surrounding viscous fluid which is otherwise at rest. The physical model of Spirillum adopted for the present analysis consists of a rigid helical body with flagella attached to both ends of the helix.
Chwang, A. T., Wu, T. Y., Winet, H.
openaire   +3 more sources

Key technologies and applications of hydrogen hybrid power locomotives

open access: yes机车电传动, 2023
Hydrogen is an environmentally friendly and highly efficient energy source with zero carbon emissions. Hydrogen-powered hybrid locomotives can operate without relying on power supply from suspension line, offering traction power of non-electrified ...
FAN Yunxin   +6 more
doaj  

The Characteristics and Distribution of Chemical Components in Particulate Matter Emissions from Diesel Locomotives

open access: yesAtmosphere, 2021
The use of diesel locomotives in transport is gradually decreasing due to electrification and the introduction of high-speed electric rails. However, in Korea, up to 30% of passenger and cargo transport still relies on diesel locomotives and vehicles ...
Min-kyeong Kim   +5 more
semanticscholar   +1 more source

Ways to solve the problem of converting diesel locomotives to gaseous fuel

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2021
The Government of the Russian Federation has set the task of expanding the field of application of gaseous fuels in the national economy. In accordance with this task, an agreement of June 17, 2016 was developed on cooperation between PJSC Gazprom, JSC ...
E. E. Kossov   +4 more
doaj   +1 more source

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