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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">mgssuvest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник МГСУ</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik MGSU</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-0935</issn><issn pub-type="epub">2304-6600</issn><publisher><publisher-name>Moscow State University of Civil Engineering (National Research University) (MGSU)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/1997-0935.2025.10.1534-1541</article-id><article-id custom-type="elpub" pub-id-type="custom">mgssuvest-752</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>Проектирование и конструирование строительных систем. Строительная механика. Основания и фундаменты, подземные сооружения</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Construction system design and layout planning. Construction mechanics. Bases and foundations, underground structures</subject></subj-group></article-categories><title-group><article-title>Управление параметрами расчетной модели пространственной конструкции по результатам натурных испытаний</article-title><trans-title-group xml:lang="en"><trans-title>Control of parameters of the calculation model of a spatial structure based on the results of full-scale tests</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванов</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Олег Александрович Иванов — аспирант кафедры информатики и прикладной математики</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p></bio><bio xml:lang="en"><p>Oleg A. Ivanov — postgraduate student of the Department of Computer Science and Applied Mathematics</p><p>26 Yaroslavskoe shosse, Moscow, 129337</p></bio><email xlink:type="simple">olivanovpoch@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сидоров</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Sidorov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Николаевич Сидоров — доктор технических наук, профессор, заведующий кафедрой информатики и прикладной математики, академик РААСН</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p></bio><bio xml:lang="en"><p>Vladimir N. Sidorov — Doctor of Technical Sciences, Professor, Head of the Department of Computer Science and Applied Mathematics, Academician of RAASN</p><p>26 Yaroslavskoe shosse, Moscow, 129337</p></bio><email xlink:type="simple">sidorov.vladimir@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новиков</surname><given-names>П. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikov</surname><given-names>P. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павел Игоревич Новиков — кандидат технических наук, старший преподаватель кафедры информатики и прикладной математики</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p></bio><bio xml:lang="en"><p>Pavel I. Novikov — Candidate of Technical Sciences, senior lecturer of the Department of Computer Science and Applied Mathematics</p><p>26 Yaroslavskoe shosse, Moscow, 129337</p></bio><email xlink:type="simple">novikov.mgsu@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский Московский государственный строительный университет (НИУ МГСУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering (National Research University) (MGSU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>31</day><month>10</month><year>2025</year></pub-date><volume>20</volume><issue>10</issue><fpage>1534</fpage><lpage>1541</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Иванов О.А., Сидоров В.Н., Новиков П.И., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Иванов О.А., Сидоров В.Н., Новиков П.И.</copyright-holder><copyright-holder xml:lang="en">Ivanov O.A., Sidorov V.N., Novikov P.I.</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://www.vestnikmgsu.ru/jour/article/view/752">https://www.vestnikmgsu.ru/jour/article/view/752</self-uri><abstract><sec><title>Введение</title><p>Введение. При численном моделировании механических систем близость расчетной модели к поведению объекта в значительной степени определяется адекватностью задаваемых граничных условий. На практике условия закрепления элементов конструкций нередко отличаются от идеализированных предположений, принимаемых в расчетных моделях, что приводит к расхождению расчетных и экспериментальных данных.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Рассматривается подход к оптимизации граничных условий конечно-элементной модели на основе эволюционного алгоритма CMA-ES. Объектом исследования стала пространственная рамная конструкция, над которой проведены инструментальные исследования динамических характеристик — собственных частот и свободных колебаний. Сравнение расчетных и экспериментальных частот и форм свободных колебаний осуществлялось с использованием получаемого значения коэффициента согласования форм свободных колебаний и относительной ошибки между значениями вычисляемых собственных частот расчетной модели и их величинами, устанавливаемыми экспериментально. На основе этих метрик формировалась целевая функция задачи оптимизации.</p></sec><sec><title>Результаты</title><p>Результаты. Определялись оптимальные значения коэффициентов жесткости опорных связей в нижнем поясе конструкции в направлениях шести степеней свободы. Полученные результаты показали, что применение эволюционного подхода позволяет существенно снизить расхождения между модельными и натурными данными и тем самым повысить точность расчетной модели.</p></sec><sec><title>Выводы</title><p>Выводы. Точность конечно-элементного моделирования конструкций можно увеличить за счет согласования модельных и экспериментальных динамических характеристик, используя эволюционные алгоритмы.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. In numerical modelling of mechanical systems, the proximity of the computational model to the actual behaviour of the object is largely determined by the adequacy of the specified boundary conditions. In practice, the support conditions of structural elements often differ from the idealized assumptions adopted in computational models, which leads to discrepancies between calculated and experimental data.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. This study considers an approach to optimizing the boundary conditions of a finite element model using the evolutionary algorithm CMA-ES [<xref ref-type="bibr" rid="cit1">1</xref>]. The object of investigation was a spatial frame structure, for which experimental studies of dynamic characteristics — natural frequencies and free vibrations — were conducted. The comparison of calculated and experimental frequencies and vibration modes was performed using the modal assurance criterion (MAC) and the relative error between the calculated eigenfrequencies of the model and their experimentally determined values. Based on these metrics, the objective function of the optimization problem was formulated.</p></sec><sec><title>Results</title><p>Results. The optimization made it possible to determine the stiffness coefficients of the support connections in the lower chord of the structure in six degrees of freedom. The results showed that the application of the evolutionary approach significantly reduced discrepancies between model and experimental data, thereby improving the accuracy of the computational model.</p></sec><sec><title>Conclusions</title><p>Conclusions. The accuracy of finite element modelling of structures can be improved by aligning the model and experimental dynamic characteristics through the use of evolutionary algorithms.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>расчетная модель</kwd><kwd>конечно-элементное моделирование</kwd><kwd>граничные условия</kwd><kwd>оптимизация</kwd><kwd>формы собственных колебаний</kwd><kwd>собственные частоты</kwd><kwd>динамические характеристики</kwd><kwd>эволюционный алгоритм</kwd><kwd>OpenSeesPy</kwd><kwd>CMA-ES</kwd></kwd-group><kwd-group xml:lang="en"><kwd>computational model</kwd><kwd>finite element modelling</kwd><kwd>boundary conditions</kwd><kwd>optimization</kwd><kwd>mode shapes</kwd><kwd>natural frequencies</kwd><kwd>dynamic characteristics</kwd><kwd>evolutionary algorithm</kwd><kwd>OpenSeesPy</kwd><kwd>CMA-ES</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Nomura M., Shibata M. 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DOI: 10.1007/s00521-017-3284-1</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
