Results 11 to 20 of about 179,350 (249)
Mokslas: Lietuvos Ateitis, 2012 The article describes inherent defects to aluminothermic welds, the origin of reasons and the ways of avoidance. The paper presents visual surface and fracture testing of rail joint R65 applying the method of aluminothermic welded joints. Santrauka
Aistė Šimonėlytė +2 more
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Успехи физики металлов, 2020 The regularities and formation mechanisms of structural-phase states and properties at different depths in the rail heads along the central axis and fillet after differential quenching of 100-meter rails and extremely long operation (with passed tonnage ...
V. E. Gromov, Yu. F. Ivanov, V. E. Kormyshev, A. A. Yuriev, A. P. Semin, Yu. A. Rubannikova
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Methods of elimination of rails increased damage in the area of weld joints
Вестник Научно-исследовательского института железнодорожного транспорта, 2019 Rail weld joints from electric-contact welding in stationary and fi eld conditions, as well as those from aluminothermic welding are weak points on tracks that are easily damaged compared with rails outside the weld joints.
E. A. Shur +4 more
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Rail Track with Rail Compression
Science & Technique, 2021 The problem of damping the noise on the track, arising from the movement of the train, is solved sufficiently but it is simple, if the rail with spacers is laid inside the longitudinally located band sleeper-mechanism. The result is a layered rail thread, consisting of belts: a rail tape with elastic spacers on three sides, a tie-mechanism tape and a ...
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On improvement of calculations for strength of rails
Вестник Научно-исследовательского института железнодорожного транспорта, 2016 From the middle of the last century, beginning with the works of Professor M. F. Verigo, rejection of yield strength at static loading and transition to the fatigue strength under cyclic loading were accepted and made as the main conceptual provisions in
E. A. Shur
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Вестник Научно-исследовательского института железнодорожного транспорта, 2022 Introduction. The article covers the approaches to assessing the efficient functioning of the modern upper structure track and aims at developing these approaches in the process of using the track superstructure materials — rails, fasteners, sleepers ...
E. N. Efimova +5 more
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Assessing Head Check Crack Growth by Eddy-Current Testing
Infrastructures, 2023 Managing head checks is a crucial task for an infrastructure manager as in case of deep cracks, rails can break and, thus, accidents might be the consequence.
Stefan Marschnig +4 more
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Rail Safety and Rail Privatization [PDF]
Significance, 2007 Abstract Privatisation of the state-owned British railway system was completed in 1997. The following 6 years saw four serious fatal train accidents, leading to 49 deaths. These were the train collisions at Southall in 1997 and Ladbroke Grove in 1999, each caused by trains passing red signals, and the derailments at Hatfield in 2000 and ...
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Anti-slip control based on optimal slip ratio for heavy-haul locomotives
The Journal of Engineering, 2019 To solve the problem of wheelset slip and effectively exert locomotive traction, a protection method of anti-slip control with integral sliding mode based on optimal slip ratio is proposed.
Jing He +4 more
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Simplified Damage Assessment Tool for Rails and Crossings Based on Standard Wear and RCF Models
Metals, 2022 A numerical tool is proposed to simultaneously assess various damage mechanisms that are driven by contact loading. The tool transfers loads to the contact-patch level using three contact parameters: the maximum contact pressure (pmax), the creepage (c ...
Georg Schnalzger +6 more
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