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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">kaz29</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Казахстанско-Британского технического университета</journal-title><trans-title-group xml:lang="en"><trans-title>Herald of the Kazakh-British Technical University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-6688</issn><issn pub-type="epub">2959-8109</issn><publisher><publisher-name>Казахстанско-Британский Технический Университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55452/1998-6688-2026-23-1-367-384</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz29-2531</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>НЕФТЕГАЗОВАЯ ИНЖЕНЕРИЯ И ГЕОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OIL AND GAS ENGINEERING, GEOLOGY</subject></subj-group></article-categories><title-group><article-title>ИССЛЕДОВАНИЕ ВЛИЯНИЯ МЕСТА РАСПОЛОЖЕНИЯ КОМПОЗИТНЫХ НАКЛАДОК НА ЧАСТОТЫ КОЛЕБАНИЙ МАГИСТРАЛЬНОГО ГАЗОПРОВОДА</article-title><trans-title-group xml:lang="en"><trans-title>STUDY OF THE INFLUENCE OF THE LOCATION OF COMPOSITE OVERLAYS ON THE VIBRATION FREQUENCIES OF A MAIN GAS PIPELINE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4286-8401</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Молдагалиев</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Moldagaliyev</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н.</p><p>г. Шымкент</p></bio><bio xml:lang="en"><p>Cand. Tech. Sc.</p><p>Shymkent</p></bio><email xlink:type="simple">arm_mold81@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7798-1044</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сулейменов</surname><given-names>У. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Suleimenov</surname><given-names>U.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н.</p><p>г. Шымкент</p></bio><bio xml:lang="en"><p>Dr. Tech. Sc.</p><p>Shymkent</p></bio><email xlink:type="simple">u.suleimenov2019@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8153-1449</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жанабай</surname><given-names>Н. Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhangabay</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н.</p><p>г. Шымкент</p></bio><bio xml:lang="en"><p>Cand. Tech. Sc.</p><p>Shymkent</p></bio><email xlink:type="simple">nurlan.zhanabay777@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Южно-Казахстанский университет им. М. Ауэзова<country>Казахстан</country></aff><aff xml:lang="en">NAO South Kazakhstan University named after M. Auezov<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>29</day><month>03</month><year>2026</year></pub-date><volume>23</volume><issue>1</issue><fpage>367</fpage><lpage>384</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Молдагалиев А.Б., Сулейменов У.С., Жанабай Н.Ж., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Молдагалиев А.Б., Сулейменов У.С., Жанабай Н.Ж.</copyright-holder><copyright-holder xml:lang="en">Moldagaliyev A., Suleimenov U., Zhangabay N.</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.kbtu.edu.kz/jour/article/view/2531">https://vestnik.kbtu.edu.kz/jour/article/view/2531</self-uri><abstract><p>В данной работе проведено численное исследование типового участка магистрального надземного газопровода усиленными композитными накладками, установленными на опоры на предмет анализа частот колебаний. Исследование проведено методом конечных элементов в программном комплексе ANSYS Workbench. В исследовании в качестве нагрузки рассмотрены случаи с внутренним рабочим и критическим давлением. Результат исследования показал, что в вариации установки композитных накладок при условии критического давления первые 11 частот колебаний показали более низкое значение, а начиная с 12 частоты более низкие значения показали в условиях рабочего давления. Вместе с тем в условиях рабочего давления расположение композитной накладки в вариации между опорами 2 и 3, а также в вариации между опорами 3 и 4 показало одинаковые результаты, то есть изменение происходило только в 1, 4 и 5 формах. В вариации, когда накладка установлена между опорами 1 и 2, изменению подверглись 1, 3 и 5 формы. В условиях критического давления расположение композитной накладки в вариации между опорами 2 и 3, а также в вариации между опорами 1 и 5 показало одинаковые результаты, то есть изменение происходило в 1, 2 и 5 формах. В вариации, когда накладка установлена между опорами 3 и 4, изменению подверглись 1, 3 и 5 формы. При сравнении всех трех случаев было установлено, что значение частот колебаний при установке композитных накладок посередине в большинстве случаев превышает, то есть из перечисленных двадцати частот в 60–70% показатель частот больше относительно других двух случаев. Таким образом, полученные результаты исследований можно использовать для выбора места расположения накладки из углепластика для бандажирования газопроводов в условиях региона с сейсмической активностью.</p></abstract><trans-abstract xml:lang="en"><p>In this paper, a numerical study of a typical section of an overhead main gas pipeline with reinforced composite linings mounted on supports for the analysis of vibration frequencies is carried out. The study was conducted using the finite element method in the ANSYS Workbench software package. The study considers cases with internal working and critical pressure as a load. The result of the study showed that in the variation of the installation of composite linings under the condition of critical pressure, the first eleven oscillation frequencies showed a lower value, and starting from the twelfth frequency, lower values were shown in the operating pressure condition. At the same time, under operating pressure conditions, the location of the composite lining in the variation between supports 2 and 3, as well as in the variation between supports 3 and 4, showed the same results, that is, the change occurred only in 1,4 and 5 forms. In the variation, when the pad is installed between the supports 1 and 2, the shapes 1,3 and 5 were changed. Under conditions of critical pressure, the location of the composite lining in the variation between supports 2 and 3, as well as in the variation between supports 1 and 5, showed the same results, that is, the change occurred in 1,2 and 5 forms. In the variation, when the pad is installed between the supports 3 and 4, the shapes 1,3 and 5 were changed. When comparing all three cases according to the values of the oscillation frequencies, it was established that the value of the oscillation frequencies when installing composite linings in the middle in most cases exceed, that is, of the twenty frequencies listed, 60-70% of the chatot index is higher relative to the other two cases. Thus, the obtained research results can be used to select the location of a carbon fiber lining for banding gas pipelines in a region with seismic activity.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стальной газопровод</kwd><kwd>усиление труб</kwd><kwd>композитная накладка</kwd><kwd>конечно-элементный анализ</kwd><kwd>место расположения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>steel gas pipeline</kwd><kwd>pipe reinforcement</kwd><kwd>composite lining</kwd><kwd>finite element analysis</kwd><kwd>location</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование проводилось в рамках грантового финансирования Комитета науки Министерства образования и науки Республики Казахстан ИРН АР14872527.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Официальный сайт АО «Интергаз Центральная Азия». 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