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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">10.21780/2223-9731-2019-78-2-122-128</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnikvniizht-300</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>Комплексный метод оценки результатов ультразвукового контроля деталей и узлов подвижного состава при настройке чувствительности по разным отражателям</article-title><trans-title-group xml:lang="en"><trans-title>Comprehensive method for evaluating results of ultrasonic testing of parts and components of rolling stock when adjusting the sensitivity for different reflectors</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>Киреев</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>KIREEV</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Киреев Андрей Николаевич, канд. техн. наук, доцент </p><p>Луганск, 91034 </p></bio><bio xml:lang="en"><p>Andrey N. KIREEV, Cand. Sci. (Eng.), Associate Professor </p><p>Lugansk, 91034 </p><p> </p></bio><email xlink:type="simple">lifter_23@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>Быкадоров</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>BYKADOROV</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Быкадоров Вадим Викторович, канд. техн. наук, доцент, зав. кафедрой железнодорожного транспорта </p><p>Луганск, 91034</p></bio><bio xml:lang="en"><p>Vadim V. BYKADOROV, Cand. Sci. (Eng.), Associate Professor, Head of the Department of railway transport </p><p>Lugansk, 91034 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Киреева</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>KIREEVA</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>КиреевА Маргарита Анатольевна, ассистент </p><p>Луганск, 91034 </p><p> </p></bio><bio xml:lang="en"><p>Margarita A. KIREEVA, Assistant </p><p>Lugansk, 91034 </p><p> </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Государственное образовательное учреждения высшего профессионального образования «Луганский национальный университет имени Владимира Даля» (ГОУ ВПО «ЛНУ им. В. Даля»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Educational Institution of Higher Professional Education “Lugansk National University n.a. Vladimir Dal'” (SEI HPE “LNU n.a. V. Dal'”)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>05</day><month>06</month><year>2019</year></pub-date><volume>78</volume><issue>2</issue><fpage>122</fpage><lpage>128</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Киреев А.Н., Быкадоров В.В., Киреева М.А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Киреев А.Н., Быкадоров В.В., Киреева М.А.</copyright-holder><copyright-holder xml:lang="en">KIREEV A.N., BYKADOROV V.V., KIREEVA M.A.</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/300">https://www.journal-vniizht.ru/jour/article/view/300</self-uri><abstract><p>Новый метод предназначен для выявления несплошностей и их оценки по диаграммам амплитуда — расстояние — диаметр безэталонным способом с возможностью определения типа несплошности двухчастотным методом дефектометрии при ручном ультразвуковом контроле одноканальным ультразвуковым дефектоскопом. Разработанный метод наиболее актуален при контроле литых деталей подвижного состава железных дорог, так как в отливках равновероятно могут встречаться как объемные (поры, раковины, неметаллические включения и др.), так и плоскостные несплошности (трещины различного происхождения; флокены; ликвации, приводящие к нарушению сплошности и др.). Удобство работы оператора-диагноста обеспечивается с помощью авторского программного продукта NDTRT-25.</p></abstract><trans-abstract xml:lang="en"><p>Operation of railway rolling stock is accompanied by high costs of maintaining its operating condition throughout the entire period of operation. To improve the operation efficiency of rolling stock, methods and diagnostics tools have been developed, which are used both in its manufacture and in carrying out maintenance and repairs, and as an independent technological process. Diagnostics allows to increase the availability factor and the probability of uptime of the rolling stock, reduce the complexity and cost of periodic maintenance of its nodes. The article proposes a new integrated method for estimating discontinuities in parts and units of railway rolling stock according to the amplitude — distance — diameter diagrams by the standardless method with the possibility of determining the type of discontinuity by the dual-frequency method of flaw-detection with a manual ultrasonic testing with a single-channel ultrasonic flaw detector. Developed method is most relevant in the control of cast parts of railway rolling stock, since castings can be equally likely to contain bulk (pores, shells, nonmetallic inclusions, etc.) and planar discontinuities (cracks of different origin; flocks; segregations that lead to violation continuity, etc.). Proposed method allows estimating the discontinuity by comparing the amplitude of the echo signal from it with the corresponding type of tuning reflector: if the discontinuity is planar as a result of using the two-frequency flaw-detection method, the comparison is carried out with the amplitude of the flat-bottomed cylindrical reflector; if the discontinuity is volumetric, then the comparison is made with the amplitude from the spherical reflector. The article describes the algorithm that was developed to automate the calculation of the parameters of the amplitude — distance — diameter diagram, the parameters of the use of the two-frequency method, and also the estimation of the detected discontinuities, and, based on it, the NDTRT-25 software that allows ensuring the convenience of the operator-diagnostician.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>железная дорога</kwd><kwd>подвижной состав</kwd><kwd>диагностика</kwd><kwd>акустический контроль</kwd><kwd>ультразвуковой контроль</kwd><kwd>эхо-импульсный метод</kwd><kwd>дефектометрия</kwd><kwd>двухчастотный метод</kwd></kwd-group><kwd-group xml:lang="en"><kwd>railway</kwd><kwd>rolling stock</kwd><kwd>diagnostics</kwd><kwd>acoustic control</kwd><kwd>ultrasound testing</kwd><kwd>pulse echo method</kwd><kwd>flaw detection</kwd><kwd>dual frequency method</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">Бервинов В.И., Доронин Е.Ю., Зенин И.П. 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