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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">RUDN Journal of Engineering Research</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Engineering Research</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Инженерные исследования</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-8143</issn><issn publication-format="electronic">2312-8151</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">25556</article-id><article-id pub-id-type="doi">10.22363/2312-8143-2020-21-3-166-174</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Aviation and rocket and space technology</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>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">Assessment of wing deformation influence on airload determination at the initial design stages</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние учета деформации крыла при определении аэродинамических нагрузок на начальных этапах проектирования</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Baranovski</surname><given-names>Sergey V.</given-names></name><name xml:lang="ru"><surname>Барановски</surname><given-names>Сергей Владиславович</given-names></name></name-alternatives><bio xml:lang="en"><p>postgraduate student, assistant lecturer of the Department SM-13 Rocket and Space Composite Structures of the Bauman MSTU</p></bio><bio xml:lang="ru"><p>аспирант, ассистент кафедры СМ-13 «Ракетно-космические композитные конструкции» МГТУ имени Н.Э. Баумана</p></bio><email>konst_mi@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mikhaylovskiy</surname><given-names>Konstantin V.</given-names></name><name xml:lang="ru"><surname>Михайловский</surname><given-names>Константин Валерьевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Associate Professor of the Department SM-13 Rocket and Space Composite Structures of the Bauman MSTU; Candidate of Science (Eng.)</p></bio><bio xml:lang="ru"><p>доцент кафедры СМ-13 «Ракетно-космические композитные конструкции» МГТУ имени Н.Э. Баумана; кандидат технических наук</p></bio><email>konst_mi@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Bauman Moscow State Technical University (National Research University of Technology)</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="2020-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2020</year></pub-date><volume>21</volume><issue>3</issue><issue-title xml:lang="en">VOL 21, NO3 (2020)</issue-title><issue-title xml:lang="ru">ТОМ 21, №3 (2020)</issue-title><fpage>166</fpage><lpage>174</lpage><history><date date-type="received" iso-8601-date="2021-01-29"><day>29</day><month>01</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Baranovski S.V., Mikhaylovskiy K.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Барановски С.В., Михайловский К.В.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Baranovski S.V., Mikhaylovskiy K.V.</copyright-holder><copyright-holder xml:lang="ru">Барановски С.В., Михайловский К.В.</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/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/engineering-researches/article/view/25556">https://journals.rudn.ru/engineering-researches/article/view/25556</self-uri><abstract xml:lang="en"><p>At designing aircraft, much attention is given to the wing, as one of the most critical elements of the airframe. It is necessary to have a clear-eyed outlook at response sequence, efficiency of various factors and calculation features on the receipt timing and quality of the result. In addition, the design of a structural element is a complex multidisciplinary task affecting various fields of science, which is complicated by the use of polymer composite materials. In the furtherance of solving the urgent task of the methods of designing of a polymer composite wing, it is necessary to determine the influence of wing deformation on the airload used in the calculation and determination of product parameters. Methods of designing of a polymer composite wing used at the initial stages and taking into account the choice of the external appearance, justification of the structural arrangement and load-bearing elements. The paper considers the flow of air over the wing of a passenger airliner and analyzes the pressure values for various flight modes. A comparison is made of the initial theoretical wing surface and deformed during flight, and the difference in loading of the considered options is determined. A future methodology of polymer composite wing design based on parametric modelling will take these results into account and make use of them.</p></abstract><trans-abstract xml:lang="ru"><p>При проектировании самолетов большое внимание уделяется крылу как одному из наиболее ответственных элементов планера. Во время разработки необходимо иметь четкое представление о последовательности действий, степени влияния различных факторов и особенностей расчета на сроки получения и качество результата. Кроме того, само проектирование такого элемента конструкции является сложной комплексной мультидисциплинарной задачей, затрагивающей различные области науки, которая значительно усложняется с применением полимерных композиционных материалов (ПКМ). В рамках решения актуальной задачи по составлению методики проектирования крыла из ПКМ, применяемой на начальных этапах и учитывающей выбор внешнего облика, обоснование конструктивно-силовой схемы и отдельных силовых элементов, необходимо определить степень влияния деформации крыла на получаемые нагрузки, используемые при расчете и определении параметров изделия. В работе рассмотрено обтекание воздушным потоком крыла пассажирского авиалайнера и проанализированы величины давления при различных режимах полета. Проведено сравнение исходной теоретической поверхности крыла и деформированной при полете, а также определено различие в нагружении рассмотренных вариантов. Результаты будут учтены и использованы при составлении методики проектирования крыла из ПКМ на основе параметрического моделирования.</p></trans-abstract><kwd-group xml:lang="en"><kwd>airliner</kwd><kwd>wing</kwd><kwd>airload</kwd><kwd>aerodynamic pressing</kwd><kwd>airfoil flow</kwd><kwd>finite elements</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>авиалайнер</kwd><kwd>крыло</kwd><kwd>аэродинамические нагрузки</kwd><kwd>аэродинамическое давление</kwd><kwd>обтекание поверхности</kwd><kwd>конечные элементы</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">Gagnon H, Zingg DW. High-fidelity aerodynamic shape optimization of unconventional aircraft through axial deformation. 52nd Aerospace Sciences Meeting, AIAA SciTech Forum (National Harbor, 2014). AIAA Paper. 2014-0908. p. 1−18.</mixed-citation><mixed-citation xml:lang="ru">Gagnon H., Zingg D.W. 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