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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Самарского государственного технического университета. Серия «Физико-математические науки»</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1991-8615</issn><issn publication-format="electronic">2310-7081</issn><publisher><publisher-name xml:lang="en">Samara State Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">569342</article-id><article-id pub-id-type="doi">10.14498/vsgtu2064</article-id><article-id pub-id-type="edn">IVANRN</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Mechanics of Solids</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Механика деформируемого твердого тела</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Construction of elastic fields in the problem from the action of body forces of a cyclic nature</article-title><trans-title-group xml:lang="ru"><trans-title>Построение упругих полей в задаче от действия объемных сил циклического характера</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7736-9311</contrib-id><contrib-id contrib-id-type="scopus">57201671293</contrib-id><contrib-id contrib-id-type="researcherid">57198777321</contrib-id><contrib-id contrib-id-type="spin">5839-4063</contrib-id><name-alternatives><name xml:lang="en"><surname>Ivanychev</surname><given-names>Dmitriy A.</given-names></name><name xml:lang="ru"><surname>Иванычев</surname><given-names>Дмитрий Алексеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Phys. &amp; Math. Sci.; Associate Professor; Institute of Mechanical Engineering and Transport</p></bio><bio xml:lang="ru"><p>кандидат физико-математических наук; доцент; институт машиностроения и транспорта</p></bio><email>lsivdmal@mail.ru</email><uri>https://www.mathnet.ru/person153196</uri><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6193-9036</contrib-id><contrib-id contrib-id-type="scopus">57198777321</contrib-id><contrib-id contrib-id-type="spin">8100-5287</contrib-id><name-alternatives><name xml:lang="en"><surname>Levina</surname><given-names>Ekaterina Yu.</given-names></name><name xml:lang="ru"><surname>Левина</surname><given-names>Екатерина Юрьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Associate Professor, Associate Professor, Department of Physics</p></bio><bio xml:lang="ru"><p>кандидат технических наук; доцент; факультет фундаментальных наук</p></bio><email>hensi-l@yandex.ru</email><uri>https://www.mathnet.ru/person209459</uri><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lipetsk State Technical University</institution></aff><aff><institution xml:lang="ru">Липецкий государственный технический университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Bauman Moscow State Technical University</institution></aff><aff><institution xml:lang="ru">Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-09-02" publication-format="electronic"><day>02</day><month>09</month><year>2024</year></pub-date><volume>28</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>59</fpage><lpage>72</lpage><history><date date-type="received" iso-8601-date="2023-09-12"><day>12</day><month>09</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2024-06-17"><day>17</day><month>06</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Authors; Samara State Technical University (Compilation, Design, and Layout)</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Авторский коллектив; Самарский государственный технический университет (составление, дизайн, макет)</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Authors; Samara State Technical University (Compilation, Design, and Layout)</copyright-holder><copyright-holder xml:lang="ru">Авторский коллектив; Самарский государственный технический университет (составление, дизайн, макет)</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/1991-8615/article/view/569342">https://journals.eco-vector.com/1991-8615/article/view/569342</self-uri><abstract xml:lang="en"><p>The paper presents a method for determining the stress-strain state of transversely isotropic bodies of revolution under the action of non-axisymmetric stationary volumetric forces. This problem involves the use of boundary state method definitions. The basis of the space of internal states is formed using fundamental polynomials. The polynomial is placed in any position of the displacement vector of the plane auxiliary state, and the spatial state is determined by the transition formulaes. The set of such states forms a finite-dimensional basis according to which, after orthogonalization, the desired state is expanded into Fourier series with the same coefficients. Series coefficients are scalar products of vectors of given and basic volumetric forces. Finally, the search for an elastic state is reduced to solving quadratures.The solutions of problems of the theory of elasticity for a transversely isotropic circular cylinder from the action of volumetric forces given by various cyclic laws (sine and cosine) are analyzed. Recommendations are given for constructing the basis of internal states depending on the form of the function of given volumetric forces. The analysis of the series convergence and the estimation of the solution accuracy in graphical form are given.</p></abstract><trans-abstract xml:lang="ru"><p>Представлен метод определения напряженно-деформированного состояния трансверсально-изотропных тел вращения, возникающего под действием неосесимметричных стационарных объемных сил. Поставленная задача предполагает использование понятий метода граничных состояний. Базис пространства внутренних состояний формируется с помощью фундаментальных полиномов. Многочлен ставится в любое положение вектора смещения плоского вспомогательного состояния и по формулам перехода формируется пространственное состояние. Множество таких состояний образует конечномерный базис, по которому после ортогонализации искомое состояние разлагается в ряды Фурье с теми же коэффициентами. Коэффициенты рядов представляют собой скалярные произведения векторов заданной и базисной объемных сил. Наконец, поиск упругого состояния сводится к решению квадратур.Анализируются решения задач теории упругости для трансверсально-изотропного кругового цилиндра от действия объемных сил, заданных различными циклическими законами (синуса и косинуса). Даны рекомендации по построению базиса внутренних состояний в зависимости от вида функции заданных объемных сил. Даны анализ сходимости рядов и оценка точности решения в графическом виде.</p></trans-abstract><kwd-group xml:lang="en"><kwd>boundary state method</kwd><kwd>transversely isotropic materials</kwd><kwd>body forces</kwd><kwd>state space</kwd><kwd>non-axisymmetric deformation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>метод граничных состояний</kwd><kwd>трансверсально-изотропные материалы</kwd><kwd>объемные силы</kwd><kwd>пространство состояний</kwd><kwd>неосесимметричная деформация</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The study was carried out with the financial support of RFBR and the Lipetsk Region as part of the research project no. 19–41–480003</funding-statement><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке РФФИ и Липецкой области в рамках научного проекта № 19–41–480003 "р_а"</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Vestyak V. 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