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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">Structural Mechanics of Engineering Constructions and Buildings</journal-id><journal-title-group><journal-title xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</journal-title><trans-title-group xml:lang="ru"><trans-title>Строительная механика инженерных конструкций и сооружений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1815-5235</issn><issn publication-format="electronic">2587-8700</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">37223</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2023-19-5-510-519</article-id><article-id pub-id-type="edn">INGGHL</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Analysis of thin elastic shells</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Расчет тонких упругих оболочек</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">Shells in the form of algebraic ruled surfaces on a rhombic base</article-title><trans-title-group xml:lang="ru"><trans-title>Оболочки в форме алгебраических линейчатых поверхностей на ромбическом плане</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8742-3521</contrib-id><name-alternatives><name xml:lang="en"><surname>Tupikova</surname><given-names>Evgenia M.</given-names></name><name xml:lang="ru"><surname>Тупикова</surname><given-names>Евгения Михайловна</given-names></name></name-alternatives><bio xml:lang="en"><p>PhD, Associate Professor of the Department of Civil Engineering, Academy of Engineering</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент департамента строительства, инженерная академия</p></bio><email>emelian-off@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">RUDN University</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2023</year></pub-date><volume>19</volume><issue>5</issue><issue-title xml:lang="en">VOL 19, NO5 (2023)</issue-title><issue-title xml:lang="ru">ТОМ 19, №5 (2023)</issue-title><fpage>510</fpage><lpage>519</lpage><history><date date-type="received" iso-8601-date="2023-12-28"><day>28</day><month>12</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Tupikova E.M.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Тупикова Е.М.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Tupikova E.M.</copyright-holder><copyright-holder xml:lang="ru">Тупикова Е.М.</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-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/37223">https://journals.rudn.ru/structural-mechanics/article/view/37223</self-uri><abstract xml:lang="en"><p style="text-align: justify;">One of the promising objects for application in architectural and construction practice are analytically determined structural shapes in the form of thin elastic shells with a median surface in the form of algebraic ruled surfaces on a rhombic plan on the basis of various curves. In particular, this study considers three surfaces with identical framework forming lines of superellipses using framework curves that have the appearance of waterline, midships section, and main buttock lines - lines that have been initially generated and used in shipbuilding. The shapes of structures on a rhombic base were considered. The study contains geometric modeling of such structures, creation of finite element models and their computation. A comparison of the values characterizing the stress-strain state for three different shapes with the same span and lifting arm (variant designing with optimized choice) has been carried out. From the theoretical point of view, the possibility of generating three different surfaces on the same frame seems to be an interesting result. From the viewpoint of strength analysis, one of the three obtained shells was chosen as it has the most uniform stress distribution, which is the most economical in terms of material cost.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Одними из перспективных к внедрению в архитектурной и строительной практике объектов являются аналитически заданные формы конструкций в виде тонких упругих оболочек со срединной поверхностью в форме алгебраических линейчатых поверхностей на ромбическом плане на основе различных кривых. В частности, в данной работе рассматриваются три поверхности, имеющие одинаковые образующие линии каркаса из суперэллипсов с использованием каркасных кривых, имеющих Автор заявляет об отсутствии вид ватерлинии, мидельшпангоута, килевой линии - линий, которые изконфликта интересов. начально были получены и применяются в судостроении. Рассмотрены формы сооружений на ромбовидном плане. В статье произведено геометрическое моделирование данных объектов, построение конечноэлементных моделей и их расчет. Проведено сравнение величин, характеризующих напряженно-деформированное состояние для трех разных форм с одинаковым пролетом и стрелой подъема (вариантное проектирование с оптимальным выбором). С точки зрения теории представляется интересным результатом возможность построения трех разных поверхностей на одинаковом каркасе. С точки зрения прочностного анализа из трех полученных оболочек выбрана та, у которой наиболее равномерное распределение напряжений, как наиболее экономичная по затратам материала.</p></trans-abstract><kwd-group xml:lang="en"><kwd>thin elastic shell</kwd><kwd>static structural analysis</kwd><kwd>superellipse</kwd><kwd>finite element method</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>тонкая упругая оболочка</kwd><kwd>статический расчет</kwd><kwd>суперэллипс</kwd><kwd>метод конечного элемента</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">Mamieva I.А. Ruled algebraic surfaces with main frame from three superellipses. Structural Mechanics of Engineering Constructions and Buildings. 2022;18(4):387–395. (In Russ.) https://doi.org/10.22363/1815-5235-2022-18-4387-395</mixed-citation><mixed-citation xml:lang="ru">Мамиева И.А. 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