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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">vrgup</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Ростовского государственного университета путей сообщения</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0201-727X</issn><publisher><publisher-name>Ростовский государственный университет путей сообщения</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.46973/0201-727X_2026_1_102</article-id><article-id custom-type="elpub" pub-id-type="custom">vrgup-184</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>ПОДВИЖНОЙ СОСТАВ, БЕЗОПАСНОСТЬ ДВИЖЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ROLLING STOCK, TRAFFIC SAFETY</subject></subj-group></article-categories><title-group><article-title>Cнижение металлоемкости рамы кузова моторвагонного подвижного состава</article-title><trans-title-group xml:lang="en"><trans-title>Reducing the metal intensity of the EMU-train car body frame</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>Гучинский</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Guchinsky</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гучинский Руслан Валерьевич, лаборатория прикладных исследований, кандидат технических наук, старший научный сотрудник</p></bio><bio xml:lang="en"><p>Guchinsky Ruslan Valerievich, Applied Research Laboratory, Candidate of Engineering Sciences, Senior Research Officer</p></bio><email xlink:type="simple">ruslan239@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «Троицкий Крановый Завод», ОП Санкт-Петербург, инженер-расчетчик, Институт проблем машиноведения РАН (ИПМаш РАН)</institution></aff><aff xml:lang="en"><institution>Troitsk Crane Plant Ltd, Saint-Petersburg Department, Structural Engineer, Institute for Problems of Mechanical Engineering of the RAS (IPME RAS),</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2026</year></pub-date><volume>0</volume><issue>1</issue><fpage>102</fpage><lpage>109</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гучинский Р.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Гучинский Р.В.</copyright-holder><copyright-holder xml:lang="en">Guchinsky R.V.</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://vestnik.rgups.ru/jour/article/view/184">https://vestnik.rgups.ru/jour/article/view/184</self-uri><abstract><p>Повышение конструкционных скоростей современного подвижного состава неизбежно связано со снижением его массы. Оптимизация рамы является целесообразной из-за ее наибольшего удельного веса в составе кузова вагона. Рассматриваются варианты конструктивных схем рамы, позволяющие снизить массу по сравнению с классической раскосной схемой для моторвагонного подвижного состава. Показано, что для передачи нагрузок от сцепного устройства на обвязочный профиль подходящей является схема, объединяющая хребтовую балку с раскосами в единые длинные раскосы. Получено, что наиболее эффективной с точки зрения передачи продольных усилий является безраскосная схема с единой хребтовой балкой по всей длине кузова, при этом для уменьшения металлоемкости возможно ее существенное ослабление в центральной части кузова. Схема с хребтовой балкой для рассматриваемой конструкции позволяет сократить массу рамы на 11 %, уменьшить в 2 раза сечение обвязочного профиля, при этом прогиб от собственного веса увеличивается на 9 %. Такая схема позволяет сохранить шкворневое соединение тележки и кузова, типичное для электропоездов.</p></abstract><trans-abstract xml:lang="en"><p>Increasing the design speeds of modern rolling stock inevitably requires a reduction in its weight. Optimization of the frame is advisable due to its largest weight fraction within the car body. Frame versions are considered that allow for weight reduction compared to the traditional diagonal design for EMU-trains in this paper. It is shown that a design combining the center beam with the diagonals into single long diagonals is suitable for transferring loads from the coupling to the frame profile. It was found that a single-braced center beam along the entire length of the car body is the most efficient in terms of transmitting longitudinal forces. However, to reduce metal intensity, it can be significantly weakened in the central part of the car body. The center beam design for the considered structure reduces the frame weight by 11 % and halves the cross-section of the frame profile, while increasing the deflection due to dead weight by 9%. This design allows for the retention of the pin connection between the bogie and the body, typical for electric trains.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>прочность</kwd><kwd>жесткость</kwd><kwd>электропоезд</kwd><kwd>метод конечных элементов</kwd><kwd>оптимизация</kwd><kwd>кузов</kwd><kwd>динамика вагона</kwd></kwd-group><kwd-group xml:lang="en"><kwd>strength</kwd><kwd>rigidity</kwd><kwd>electric train</kwd><kwd>finite element method</kwd><kwd>optimization</kwd><kwd>car body</kwd><kwd>car dynamics</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">Natural Frequency Evaluation of a Lightweight GFRP Composite Bogie Frame / J.-S. Kim, W.-G. Lee, Il.-K. Kim, H.-J. 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