Results 11 to 20 of about 278,089 (299)

Fatigue test loading method for wagon body based on measured load [PDF]

open access: yesRailway Sciences, 2023
Purpose – In this paper, the C80 special coal gondola car was taken as the subject, and the load test data of the car body at the center plate, side bearing and coupler measured on the dedicated line were broken down to generate the random load component
Qiang Zhang   +3 more
doaj   +1 more source

Influence of the axial loads of rolling stock on the contact-fatigue life of rails

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2018
Analysis of operational data for defective and highly defective rails showed that up to 25 % is the contact-fatigue defects. In connection with the development of heavy haul traffic on the Russian railways, it is relevant to determine the influence of ...
V. S. Kossov   +5 more
doaj   +1 more source

Investigation of resonant phenomena in a locomotive wheelset on the basis of calculation of natural frequencies and modes of their oscillations on finite element models

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2017
From the practice of engineering design it is known that in the development of mechanical systems, the operation of which is certainly not based on the phenomena of resonance, self-synchronization, etc., one should be wary of the proximity of the ...
V. S. Kossov   +5 more
doaj   +1 more source

Stator ITSC Fault Diagnosis for EMU Induction Traction Motor Based on Goertzel Algorithm and Random Forest

open access: yesEnergies, 2023
The stator winding insulation system is the most critical and weakest part of the EMU’s (electric multiple unit’s) traction motor. The effective diagnosis for stator ITSC (inter-turn short-circuit) faults can prevent a fault from expanding into phase-to ...
Jie Ma   +7 more
doaj   +1 more source

A Locating Approach for Small-Sized Components of Railway Catenary Based on Improved YOLO With Asymmetrically Effective Decoupled Head

open access: yesIEEE Access, 2023
In the routine inspection process of railway catenary systems, the primary task is to find out the locations of various components accurately. The complex composition of the components in the catenary system and their large dimensional differences make ...
Shuai Xu   +7 more
doaj   +1 more source

Unified Principal S–N Equation for Friction Stir Welding of 5083 and 6061 Aluminum Alloys

open access: yesChinese Journal of Mechanical Engineering, 2021
With the popularization of friction stir welding (FSW), 5083-H321 and 6061-T6 aluminum alloy materials are widely used during the FSW process. In this study, the fatigue life of friction stir welding with two materials, i.e., 5083-H321 and 6061-T6 ...
Xiangwei Li, Ji Fang, Xiaoli Guan
doaj   +1 more source

Lubrication of rail by traction unit in the train

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2017
Interaction of rolling stock and track is a fundamental physical process while running cars, locomotives and trains on the railway. The Research, Design and Technological Institute of the rolling stock (JSC "VNIKTI") for more than twenty years conducting
V. S. Kossov   +4 more
doaj   +1 more source

Optimization of damping effect for the air spring by the frequency dependent orifice

open access: yesMechanical Engineering Journal, 2017
This study proposes a newly developed structure for a frequency-dependent orifice for an air spring of a passenger train vehicle. This frequency-dependent orifice reduced both the rolling motion and the vertical vibration at high frequency.
Yuichiro TAKINO   +5 more
doaj   +1 more source

The impact of deformation in the zone of welded joints on the force action of the rolling stock on the track

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2020
The causes of deformation in the zone of welded joints are considered. Authors experimentally studied changes in hardness on the rolling surface of the rail in the longitudinal and transverse profiles within the thermally affected zone of the welded ...
V. S. Kossov   +2 more
doaj   +1 more source

Innovative braking system for high-speed 80-foot platform

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2021
The article discusses technical solutions for the creation of an effective design of a brake system for high-speed longwheelbase platforms intended for the transport of containers, as well as for the development of a fundamentally new brake equipment for
V. A. Nikonov   +4 more
doaj   +1 more source

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