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Измерение нейтральной температуры рельсовой плиты бесстыковой колеи

Измерение нейтральной температуры рельсовой плиты бесстыковой колеи

Abstract

Nowadays the maintenance of long welded rails track is an urgent problem of railway industry. The inexact diagnostic method of the stressed state of long welded rails is used now on railways of Ukraine. This method does not give a direct and true picture of distribution and mode of the stress. Therefore there is a necessity of application of a new diagnostic method, which determines not only temperature stress and stress from longitudinal moving, but also initial and residual, i.e. total longitudinal stress. Taking into account that the rail is made of ferromagnetic material, the phenomenon of magnetic elasticity is used in measurement of mechanical stress. The device for the diagnostic of total mechanical longitudinal stress of static character in a rail is constructed, based on this phenomenon. The technical result of using the new method is an increase in accuracy, speed, convenience and reliability of mechanical stress measurements.

Актуальной проблемой сегодняшнего дня на железной дороге является содержание бесстыкового пути. Сейчас на железных дорогах Украины используется неточный метод контроля напряженного состояния реьсовой плети, который не дает непосредственной и правдивой картины распределения величины напряжений. Поэтому возникает необходимость применения нового метода контроля, с помощью которого определяются напряжения не только температурные и напряжения от угона, но начальные и остаточные, т. е. суммарные продольные напряжения. Используя тот факт, что рельс изготовлен из ферромагнитного материала, в основу измерения механических напряжений положено явление магнитной упругости. На этом явлении построен прибор для контроля суммарных механических напряжений статического характера в рельсе. Технический результат использования нового метода повышение точности, скорости, удобства и надежности измерения механических напряжений.

Keywords

ЗАЛіЗНИЦі УКРАїНИ,ФЕРОМАГНіТНИЙ МАТЕРіАЛ,ВИМіРЮВАННЯ МЕХАНіЧНИХ НАПРУЖЕНЬ,RAILWAYS OF UKRAINE,FERROMAGNETIC MATERIAL,MECHANICAL STRESS MEASUREMENTS,ЖЕЛЕЗНЫЕ ДОРОГИ УКРАИНЫ,ФЕРРОМАГНИТНЫЙ МАТЕРИАЛ,ИЗМЕРЕНИЯ МЕХАНИЧЕСКИХ НАПРЯЖЕНИЙ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold