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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">construction</journal-id><journal-title-group><journal-title xml:lang="ru">Строительство и реконструкция</journal-title><trans-title-group xml:lang="en"><trans-title>Building and Reconstruction</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7416</issn><publisher><publisher-name>Орловский государственный университет имени И.С. Тургенева</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33979/2073-7416-2025-119-3-60-72</article-id><article-id custom-type="elpub" pub-id-type="custom">construction-923</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>ТЕОРИЯ ИНЖЕНЕРНЫХ СООРУЖЕНИЙ. СТРОИТЕЛЬНЫЕ КОНСТРУКЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>THEORY OF ENGINEERING STRUCTURES. BUILDING UNITS</subject></subj-group></article-categories><title-group><article-title>Идентификация параметров вязкоупругих материалов по результатам DMA-анализа</article-title><trans-title-group xml:lang="en"><trans-title>Identification of viscoelastic material parameters based on DMA analysis results</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>Смирнов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Смирнов Владимир Александрович - Кандидат техн.наук, доцент кафедры Теоретической и строительной механики; ведущий научный сотрудник лаборатории «Комплексные проблемы виброакустики»,</p><p>г. Москва.</p></bio><bio xml:lang="en"><p>Vladimir A. Smirnov - PhD in Technical Sciences, Associate Professor of Theoretical and Structural Mechanics Department; Leading Researcher at the "Complex Problems of Vibroacoustics" Laboratory, </p><p>Moscow.</p></bio><email xlink:type="simple">belohvost@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Национальный исследовательский Московский государственный строительный университет»; Научно-исследовательский институт строительной физики Российской академии архитектуры и строительных наук (НИИСФ РААСН)</institution></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering (National Research University) (MGSU); Research Institute of Building Physics of the Russian Academy of Architecture and Construction Sciences (NIISF RAASN)</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>20</day><month>07</month><year>2025</year></pub-date><volume>0</volume><issue>3</issue><fpage>60</fpage><lpage>72</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Смирнов В.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Смирнов В.А.</copyright-holder><copyright-holder xml:lang="en">Smirnov V.A.</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://construction.elpub.ru/jour/article/view/923">https://construction.elpub.ru/jour/article/view/923</self-uri><abstract><p>В статье решается задача идентификации параметров моделей вязкоупругих материалов, выполненных из вспененного полиуретана с замкнутыми порами по результатам его испытаний на DMA-анализаторе (dynamical mechanical analysis). DMA-испытания позволяют определить вязкоупругие характеристики материалов – комплексный модуль упругости в широком диапазоне частот. Для инженерных приложений наиболее важным для практического применения является диапазон частот в пределах 1 – 1000 Гц – для решения проблем динамики (виброизоляции и сейсмоизоляции) и акустики (защита от структурной звукопередачи). При этом в инженерной практике используют разнообразные феноменологические модели материалов – начиная от модели Кельвина-Фойгта (КФ) и стандартного линейного твёрдого тела (СЛТ) – до моделей, содержащих дробные производные – дробная модель КФ, дробная модель СЛТ, в том числе с несколькими параметрами дробности. Используя результаты DMA-испытаний: зависимости действительной и мнимой частей модуля упругости от частоты, подбирают параметры указанных моделей используя метод наименьших квадратов. Оценивается точность аппроксимации, а также полученные параметры моделей для выбранного типа материала. </p></abstract><trans-abstract xml:lang="en"><p>The article addresses the problem of identifying parameters for viscoelastic material models made from closed-cell polyurethane foam based on results obtained using a dynamic mechanical analyzer (DMA). DMA testing allows determining viscoelastic characteristics of materials — complex elastic modulus over a wide frequency range. For engineering applications, the most important practical application is within the frequency range of 1–1000 Hz to solve problems related to dynamics (vibration isolation and seismic insulation), as well as acoustics (protection against structural sound transmission). In engineering practice, various phenomenological material models are used, ranging from Kelvin-Voigt (KV) model and standard linear solid (SLS) model up to fractional derivative-based models such as fractional KV model, fractional SLS model including those with multiple fractional parameters. Using DMA test results—dependencies of real and imaginary parts of elastic modulus versus frequency, these models' parameters are adjusted by means of least squares method. The accuracy of approximation along with identified model parameters specific to the chosen type of material are evaluated. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>вязкоупругие материалы</kwd><kwd>диапазон частот</kwd><kwd>феноменологические  модели материалов</kwd><kwd>динамический модуль упругости</kwd><kwd>дробные модели</kwd></kwd-group><kwd-group xml:lang="en"><kwd>viscoelastic materials</kwd><kwd>frequency range</kwd><kwd>phenomenological material models</kwd><kwd>dynamic modulus</kwd><kwd>fractional model</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта Российского научного фонда № 25-11-00140.</funding-statement><funding-statement xml:lang="en">This research was supported by the Russian Science Foundation (Project No. 25-11-00140).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Skuratova T.B., Kirillov S.E., Syatkovskiy A.I. 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