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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">Siberian Aerospace Journal</journal-id><journal-title-group><journal-title xml:lang="en">Siberian Aerospace Journal</journal-title><trans-title-group xml:lang="kk"><trans-title>Siberian Aerospace Journal</trans-title></trans-title-group><trans-title-group xml:lang="pt"><trans-title>Siberian Aerospace Journal</trans-title></trans-title-group><trans-title-group xml:lang="ru"><trans-title>Сибирский аэрокосмический журнал</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>Siberian Aerospace Journal</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2712-8970</issn><issn publication-format="electronic">2782-5760</issn><publisher><publisher-name xml:lang="en">Reshetnev Siberian State University of Science and Technology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">678610</article-id><article-id pub-id-type="doi">10.31772/2712-8970-2025-26-1-94-106</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Section 2. Aviation and Space Technology</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Раздел 2. Авиационная и ракетно-космическая техника</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">Buckling and stiffness analysis of a composite anisogrid conical shell with a fixed small base</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ устойчивости и жесткости композитной сетчатой конической оболочки с закрепленным малым основанием</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-6384-3849</contrib-id><name-alternatives><name xml:lang="en"><surname>Nesterov</surname><given-names>Vladimir A.</given-names></name><name xml:lang="ru"><surname>Нестеров</surname><given-names>Владимир Анатольевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sc., Associate Professor</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент кафедры летательных аппаратов</p></bio><email>nesterov@mail.sibsau.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-3507-8420</contrib-id><name-alternatives><name xml:lang="en"><surname>Nikishev</surname><given-names>Andrey A.</given-names></name><name xml:lang="ru"><surname>Никишев</surname><given-names>Андрей Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Associate Professor</p></bio><bio xml:lang="ru"><p>доцент кафедры летательных аппаратов</p></bio><email>anikandrey26@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Reshetnev Siberian State University of Science and Technology</institution></aff><aff><institution xml:lang="ru">Сибирский государственный университет науки и технологий имени академика М. Ф. Решетнева</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2025</year></pub-date><volume>26</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>94</fpage><lpage>106</lpage><history><date date-type="received" iso-8601-date="2025-04-16"><day>16</day><month>04</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-04-16"><day>16</day><month>04</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Nesterov V.A., Nikishev A.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Нестеров В.А., Никишев А.А.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Nesterov V.A., Nikishev A.A.</copyright-holder><copyright-holder xml:lang="ru">Нестеров В.А., Никишев А.А.</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/2712-8970/article/view/678610">https://journals.eco-vector.com/2712-8970/article/view/678610</self-uri><abstract xml:lang="en"><p>Power elements of structures in the form of structural anisogrid shells of rotation are often used in the production of rocket and space technology. This is due, first of all, to high specific mechanical properties of composites, which allow to manufacture structures with a high degree of weight perfection. In addition, they are quite technological, as the method of continuous winding of composite fibers used in their production is widespread and well developed. In recent years, close attention has been paid to the design of composite mesh structures.</p> <p>An actual example of anisogrid cylindrical and conical shells is a spacecraft adapter for GLONASS satellites orbit launching, different variants of which are still produced in the workshops of Reshetnev JSC. The shells are of the same type, but differ in dimensions (diameters and lengths of cylindrical and conical parts) and bearing capacity. For composite elements of rocket-space technology it is characterized by the presence of a large list of variable parameters, the determination of the optimal combination of which every time results in a complex problem of scientific search.</p> <p>An algorithm and a program for building a finite element model of anisogrid conical shells made by continuous winding of composite fiber have been developed. The small base is fixed and the large base is reinforced by a spandrel and loaded by concentrated forces and moments. Numerical investigation of stability, stiffness and stress-strain state of the structure under varying parameters of its mesh structure formation is carried out with the help of FE model.</p></abstract><trans-abstract xml:lang="ru"><p>Силовые элементы конструкций в виде конструктивных анизогридных оболочек вращения часто используются в производстве ракетно-космической техники (РКТ). Это обусловлено, прежде всего, высокими удельными механическими свойствами композитов, позволяющими изготавливать конструкции с высокой степенью весового совершенства. Кроме того, они достаточно технологичны, так как применяемый при их производстве метод непрерывной намотки композитных волокон широко распространен и хорошо отработан. Вопросам проектирования композитных сетчатых конструкций в последние годы уделяется пристальное внимание.</p> <p>Актуальным примером анизогридных цилиндрических и конических оболочек является адаптер космических аппаратов для вывода на орбиту спутников системы ГЛОНАСС, различные варианты которых до сих пор производятся в цехах АО «Решетнёв». Оболочки однотипны, но отличаются по размерам (диаметрам и длинам цилиндрических и конических частей) и несущей способности. Для композитных элементов РКТ характерно наличие большого перечня варьируемых параметров, определение оптимального сочетания которых выливается каждый раз в комплексную задачу научного поиска.</p> <p>Разработаны алгоритм и программа построения конечно-элементной (КЭ) модели анизогридных конических оболочек, изготавливаемых методом непрерывной намотки композитного волокна. Малое основание закреплено, а большое усилено шпангоутом и нагружено сосредоточенными усилиями и моментами. С помощью КЭ модели выполнено численное исследование устойчивости, жесткости и напряженно-деформированного состояния конструкции при варьировании параметров формирования ее сетчатой структуры.</p></trans-abstract><kwd-group xml:lang="en"><kwd>anisogrid conical shell</kwd><kwd>composite materials</kwd><kwd>FEM</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>сетчатая коническая оболочка</kwd><kwd>композиционные материалы</kwd><kwd>МКЭ</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Vasiliev V. V., Barynin V. A., Rasin A. F. Anisogrid lattice structures – survey of development and application. Composite Structures. 2001, Vol. 54, Iss. 2–3, P. 361–370.</mixed-citation><mixed-citation xml:lang="ru">Vasiliev V. V., Barynin V. A., Rasin A. F. Anisogrid lattice structures – survey of development and application // Composite Structures. 2001. Vol. 54, Iss. 2–3. 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