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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vestnikvniizht</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Научно-исследовательского института железнодорожного транспорта (ВЕСТНИК ВНИИЖТ)</journal-title><trans-title-group xml:lang="en"><trans-title>RUSSIAN RAILWAY SCIENCE JOURNAL</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-9731</issn><issn pub-type="epub">2713-2560</issn><publisher><publisher-name>Joint Stock Company "Railway Research Institute"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21780/2223-9731-2019-78-3-131-140</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnikvniizht-308</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Другое</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Miscellaneous</subject></subj-group></article-categories><title-group><article-title>Математическая модель возникновения и развития волнообразного износа рельсов при движении электровоза в режиме тяги в прямых участках пути</article-title><trans-title-group xml:lang="en"><trans-title>Mathematical model of the formation and development of wave-shaped rail wear when an electric locomotive operates in the traction mode in tangent sections of the track</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коган</surname><given-names>А. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Kogan</surname><given-names>A. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коган Александр Яковлевич, д-р техн. наук, профессор, главный научный сотрудник, научный центр «Путевая инфраструктура и вопросы взаимодействия колесо — рельс» (НЦ “ЦПРК”), Москва, 129626, Россия</p></bio><bio xml:lang="en"><p>Alexander Ya. Kogan, Dr. Sci. (Eng.), Professor, Chief Researcher, Scientific Center “Track infrastructure and wheel – rail interaction issues” (SC “TsPRK”), Moscow, 129626, Russia</p></bio><email xlink:type="simple">suslov.oleg@vniizht.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Акционерное общество «Научно-исследовательский институт железнодорожного транспорта» (АО «ВНИИЖТ»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Joint Stock Company “Railway Research Institute” (JSC “VNIIZhT”)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>24</day><month>07</month><year>2019</year></pub-date><volume>78</volume><issue>3</issue><fpage>131</fpage><lpage>140</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Коган А.Я., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Коган А.Я.</copyright-holder><copyright-holder xml:lang="en">Kogan A.Y.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.journal-vniizht.ru/jour/article/view/308">https://www.journal-vniizht.ru/jour/article/view/308</self-uri><abstract><p>Представлена математическая модель возникновения и развития волнообразного износа рельсов. Рассмотрена задача оценки вертикального износа головки рельса под проходящими в режиме тяги осями электровозов. Разработана методика, позволяющая построить цепочку вычислений, определяющих возникновение и развитие волнообразного износа головки рельса. Приведен конкретный пример расчета, иллюстрирующий процесс распространения волны износа от источника его возникновения в направлении движения поездов.</p></abstract><trans-abstract xml:lang="en"><p>The problem of wave-shaped rail wear is highly relevant for rail transport. The paper presents a mathematical model of the formation and development of wave-shaped rail wear. The task of estimating vertical wear of the rail head under the axles of electric locomotives passing in the traction mode is considered. A technique has been developed that allows building chain of calculations that determine the formation and development of a wave-shaped rail head wear. A specific calculation example is given, illustrating the process of propagation of a wave-shaped wear from the source of its formation in the direction of train motion. An example of the calculation allows drawing the following conclusions:</p><sec><title>1</title><p>1. Wave-shaped wear primarily occurs when the shock interaction of the wheel of an electric locomotive moving in the traction mode and a rail thread having imperfections of the rolling surface. Such imperfections, among others, may be a joint with a significant gap or a “step down” in the direction of the locomotive, as well as a welded joint with defect 46.3-4.</p></sec><sec><title>2</title><p>2. Wavelength of the wave-shaped rail wear, its configuration and amplitude of the fundamental tone are determined mainly by joint oscillations of the wheel-motor unit of the locomotive and the track infrastructure in the field of high-frequency oscillations (120 – 180 Hz).</p></sec><sec><title>3</title><p>3. Multivariate calculations showed that in steady state, the distribution speed of wave-shaped rail wear in the direction of train motion (as a function of the number of axles of electric locomotives passed in traction mode) is directly proportional to the vertical load at the wheel and rail contact in the slip zone 0≤Q≤F/(2nψk), is inversely proportional to wear resistance C and significantly depends on the parameters of the undercarriage of the electric train and the track superstructure.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>волнообразный износ рельсов</kwd><kwd>износостойкость</kwd><kwd>сила тяги</kwd><kwd>коэффициент сцепления</kwd><kwd>условия боксования</kwd><kwd>приращение износа</kwd><kwd>расчетные параметры верхнего строения пути</kwd><kwd>расчетные параметры ходовой части электровоза</kwd><kwd>частотные методы исследования колебаний</kwd><kwd>решение во временной области</kwd></kwd-group><kwd-group xml:lang="en"><kwd>wave-shaped rail wear</kwd><kwd>wear resistance</kwd><kwd>traction force</kwd><kwd>friction coefficient</kwd><kwd>slipping conditions</kwd><kwd>increment of wear</kwd><kwd>design parameters of the superstructure</kwd><kwd>design parameters of the carriage of the locomotive</kwd><kwd>frequency oscillation research methods</kwd><kwd>time domain solution</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Тихомиров К. 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