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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">10.21780/2223-9731-2016-0-3-161-168</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnikvniizht-91</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>Нагруженность литых несущих конструкций трехэлементной тележки 18-100 при наличии дефектов на поверхности катания колес</article-title><trans-title-group xml:lang="en"><trans-title>Loading of cast supporting structures of three-piece bogie 18-100 in the presence of defects on the surface of wheel rolling</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>Краснов</surname><given-names>О. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasnov</surname><given-names>O. G.</given-names></name></name-alternatives><email xlink:type="simple">krasnovog@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ноздрачев</surname><given-names>Г. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Nozdrachev</surname><given-names>G. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гасюк</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gasyuk</surname><given-names>А. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Открытое акционерное общество «Всероссийский научно-исследовательский и конструкторско-технологический институт подвижного состава» (ОАО «ВНИКТИ»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Joint Stock Company “Russian scientific research and technological institute of rolling stock” (JSC “VNIKTI”)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2016</year></pub-date><volume>0</volume><issue>3</issue><fpage>161</fpage><lpage>168</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Краснов О.Г., Ноздрачев Г.С., Гасюк А.С., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Краснов О.Г., Ноздрачев Г.С., Гасюк А.С.</copyright-holder><copyright-holder xml:lang="en">Krasnov O.G., Nozdrachev G.S., Gasyuk А.S.</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/91">https://www.journal-vniizht.ru/jour/article/view/91</self-uri><abstract><p>В статье представлены результаты экспериментальных исследований по нагруженности боковых рам и надрессорной балки трехэлементной тележки 18-100 при наличии на поверхности катания дефектов в виде ползунов и неравномерного проката. Установлено, что при наличии на поверхности катания ползунов глубиной более 3 мм в зоне R55 буксового проема, расположенного наиболее близко к колесу с дефектом, возникают напряжения, превышающие предел выносливости для боковой рамы σ-1 = 45 МПа. Рекомендовано при отцепке вагонов с ползунами более 3 мм проводить дефектоскопию боковых рам тележек методами неразрушающего контроля.</p></abstract><trans-abstract xml:lang="en"><p>Results of the loading study of support structures of bogies 18 - 100 with the presence of defects in the form of slides and uneven wheel wear on the rolling surface were shown. Research carried out by strain measurement. Strain gauges were installed in the area of spring and axle boxes openings of the side frames and bolster. Defects on the rolling surface formed at VNIKTI test site. Wheelset with defects rolls instead of the first wheelset in one of the bogies which was considered experimental. Stress levels are defined at values 1 and 3 mm for the sliders, 2 and 4 mm for uneven rolling. Trial runs were conducted during experimental train motion on direct track section, as well as on turnouts of 1/11 mark, when turning to a side track and in a curve of 600 m radius, at a speed range 30 to 100 km/h both forward and reverse. Stress levels in the most loaded areas of the side frame and bolster were set experimentally. It was shown that defects with limit-exceeding geometric parameters are a huge source of force loading of axle box openings of the side frames. The remaining areas of side frames and bolsters experience additional loading during dynamic impact interaction with the wheel defects and the rail, but the stress levels at these locations is 2 - 3 times lower than in the zone adjacent to the defective wheel. It was found that for the fatigue resistance of the side frames exploitation of cars with slides more than 3 mm is not allowed. During uncoupling of cars, when wheel with slides more than 3 mm is detected, it needs to carry out flaw detection of side frames by NDT methods.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>тележка</kwd><kwd>боковая рама</kwd><kwd>надрессорная балка</kwd><kwd>ползун</kwd><kwd>неравномерный прокат</kwd><kwd>нагруженность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bogie</kwd><kwd>side frame</kwd><kwd>bolster</kwd><kwd>slide</kwd><kwd>uneven wear</kwd><kwd>loading</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">Кудрявцев Н. Н. Исследование динамики необрессоренных масс вагонов // Труды ВНИИЖТ. Вып. 97. М.: Транспорт, 1965. 168 с.</mixed-citation><mixed-citation xml:lang="en">Kudryavtsev N. N. Issledovanie dinamiki neobressorennykh mass vagonov [Study of the dynamics of  unsprung masses of cars]. Trudy VNIIZhT, vyp. 97. 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