Results 21 to 30 of about 1,135,878 (306)

CALCULATION OF TRACTION AND ENERGY CHARACTERISTICS ELECTRIC ROLLING STOCK WITH ASYNCHRONOUS TRACTION ELECTRIC DRIVE

open access: yesЗбірник наукових праць Державного університету інфраструктури та технологій: серія "Транспортні системи і технології", 2021
The issue of determining the traction and energy characteristics of electric rolling stock with asynchronous traction drive is considered. It is noted that such rolling stock can work at any point of the traction area, resulting in the need to determine ...
I. Riabov   +4 more
doaj   +1 more source

Verification of insulation tests for traction motors

open access: yesElectrical Engineering in Japan, 1997
More than 30,000 thousand dc motors are used by the Japan Railway group companies alone as traction motors for railway vehicles. Insulation breakdown of armatures is one of the most important problems in traction motors. Therefore, various insulation tests are carried out for each motor in overhaul. The methods for insulation tests were determined more
Hata, Hiroshi   +2 more
openaire   +1 more source

Highly reliable switched reluctance motor for the traction electric drive system of railway rolling stock

open access: yesОмский научный вестник, 2023
The main purpose of this work is to create conditions for the use of switched reluctance motor in the traction electric drive system of rolling stock by increasing the reliability of its bearings.
E. E. Miroshnichenko
doaj   +1 more source

Motor-traction Contracts system

open access: yesIzvestiya of Saratov University. Economics. Management. Law, 2008
In the article problems of the market relations influence on the forming of the motor-traction contracts system are analyzed. In the work it is concluded, that the majority of contracts, connected with freight, supplement each other and make interconnected system of contracts.
openaire   +1 more source

Experimentally based numerical models and numerical simulation with parameter identification of human lumbar FSUs in traction [PDF]

open access: yes, 2004
Numerical simulation of the behaviour of human lumbar spine segments, moreover, parameter-identification of the component organs of human lumbar FSUs are presented in traction therapies, by using FEM analysis. First, a simple 2D model, than a refined 2D
Tornyos, A., Kurutzné Kovács, Márta
core   +1 more source

Performance analysis of shearer driven by motor and hydraulic torque converter

open access: yesGong-kuang zidonghua, 2018
Currently shearer is mainly driven by motor and frequency converter, and it is difficult to meet requirement of larger output torque when cutting complex coal seam at low speed. In view of the problem, performance of shearer driven by motor and hydraulic
WU Senfeng
doaj   +1 more source

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle   +4 more
wiley   +1 more source

Beyond Visual Scoring: Computational Computed Tomography Analysis for High‐Resolution Computed Tomography–Based Quantification of Interstitial Lung Disease in Inflammatory Rheumatic Disease

open access: yesArthritis Care &Research, EarlyView.
Interstitial lung disease (ILD) is a significant cause of morbidity and mortality in patients with inflammatory rheumatic disorders (IRDs). High‐resolution computed tomography (HRCT) is widely considered the gold standard for the noninvasive assessment of ILD; however, its interpretation is constrained by substantial interobserver variability and the ...
Alexander Pfeil   +7 more
wiley   +1 more source

Materials‐Driven Additive Manufacturing for Electrical Machines: Qualification‐Oriented Design Beyond Geometric Freedom

open access: yesAdvanced Engineering Materials, EarlyView.
This perspective reframes additive manufacturing for electrical machines as a qualification‐limited materials and architecture design problem. It links process–structure–property–performance relationships to magnetic, conducting, dielectric, and thermal property windows, highlighting where AM can enable segmented magnetic circuits, permanent magnet ...
Dénes Fodor, Loránd Szabó
wiley   +1 more source

The Ventilation Structure Research of Permanent Magnet Traction Motor Used in Rail Transportation

open access: yesJournal of Harbin University of Science and Technology, 2017
In order to effectively improve the ventilation performance of permanent magnet synchronous traction motor used in the rail transit,this paper,taking a 600 kW permanent magnet synchronous traction motor as an example,and based on computational fluid ...
DING Shu-ye   +3 more
doaj   +1 more source

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