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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">10.55452/1998-6688-2024-21-2-181-192</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz29-1265</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>МАТЕМАТИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>ДИНАМИКА ТЕРМОУПРУГОГО СТЕРЖНЯ ПРИ НЕСТАЦИОНАРНЫХ ТЕПЛОВЫХ И СИЛОВЫХ ВОЗДЕЙСТВИЯХ</article-title><trans-title-group xml:lang="en"><trans-title>DYNAMICS OF A THERMOELASTIC ROD UNDER UNSTEADY THERMAL AND FORCE INFLUENCES</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4643-6072</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Айнакеева</surname><given-names>Н. Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Ainakeyeva</surname><given-names>N. Zn.</given-names></name></name-alternatives><bio xml:lang="ru"><p>докторант</p><p>050010, г. Алматы</p><p>050040, г. Алматы</p><p>050035, г. Алматы</p></bio><bio xml:lang="en"><p>Doctoral student</p><p>050010, Almaty</p><p>050040, Almaty</p><p>050035, Almaty</p></bio><email xlink:type="simple">nursaule_math@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт механики и машиноведения им. академика У.А. Джолдасбекова; Казахский национальный университет им. аль-Фараби; Университет Нархоз<country>Казахстан</country></aff><aff xml:lang="en">Joldasbekov Institute of Mechanics and Engeenering; Kazakh National University named al-Farabi; Narxoz University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2024</year></pub-date><volume>21</volume><issue>2</issue><fpage>181</fpage><lpage>192</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Айнакеева Н.Ж., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Айнакеева Н.Ж.</copyright-holder><copyright-holder xml:lang="en">Ainakeyeva N.Z.</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/1265">https://vestnik.kbtu.edu.kz/jour/article/view/1265</self-uri><abstract><p>Стержневые элементы широко используются в самых разных областях техники. Временные изменения температурного поля вызывают в стержневых конструкциях временно изменяющееся поле напряжений, что влияет на их прочность и надежность в эксплуатации. Определение термонапряженного состояния стержневых конструкций с учетом их механических свойств, таких как упругость, является одной из актуальных научно-технических задач. Применение методов математического моделирования позволяет исследовать термодинамические процессы, происходящие в конструкции и ее элементах, и определять их динамические и прочностные характеристики на этапе проектирования. В данной работе рассматривается задача Коши для динамики термоупругого стержня при произвольных начальных условиях, а также при силовых и тепловых воздействиях. С помощью тензора Грина уравнений термоупругости было получено аналитическое решение задачи, позволяющее определить деформации, напряжения и температуру в любом сечении стержня и в любой момент времени, если известны его начальное состояние и действующие силовые и тепловые источники. Приведены численные расчеты температуры, перемещений при действии импульсных сосредоточенных силовых и тепловых источников. Проведены расчеты решения задач Коши при действии распределенных вдоль стержня силовых и тепловых источников регулярного вида. Разработанная программа позволяет исследовать термодинамические процессы в стержнях с различными физико-механическими параметрами при действии тепловых и силовых источников как распределенных, так и сосредоточенных и импульсных, описываемых сингулярными обобщенными функциями.</p></abstract><trans-abstract xml:lang="en"><p>Rod elements are extensively utilized in various technological fields. An unsteady temperature field induces a time-varying stress field within the rod structure, impacting its strength and reliability during operation. Determining the thermally stressed state of rod structures, considering their mechanical properties (especially elasticity), is a significant scientific and technical challenge. The application of mathematical modeling methods enables the study of thermodynamic processes occurring within a structure and its elements, allowing for the determination of their dynamic and strength characteristics during the design phase. This paper addresses the Cauchy problem for the dynamics of a thermoelastic rod under arbitrary initial conditions and subjected to force and thermal influences. By employing the Green’s tensor for thermoelasticity equations, an analytical solution is derived, which determines deformations, stresses, and temperatures at any point along the rod at any given time, provided the initial state and the acting force and heat sources are known. Numerical calculations of temperature and displacement are presented for cases involving pulsed concentrated force and heat sources. Additionally, solutions to Cauchy problems under the influence of regular force and heat sources distributed along the rod are computed. The developed program allows for the investigation of thermodynamic processes in rods with various physical and mechanical properties, under the influence of both distributed and concentrated pulsed thermal and force sources, described by singular generalized functions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>термоупругий стержень</kwd><kwd>температура</kwd><kwd>перемещение</kwd><kwd>напряжение</kwd><kwd>метод обобщенных функций</kwd><kwd>тензор Грина</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Cauchy problem</kwd><kwd>rod</kwd><kwd>uncouple thermoelasticity</kwd><kwd>method of generalized functions</kwd><kwd>temperature</kwd><kwd>displacement and stress</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Данные исследования поддержаны Комитетом науки Министерства науки и высшего образования Республики Казахстан (грант BR20280990), а также проектом № AP19674789.</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">Li Y. 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