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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">vestnikcstroy</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник НИЦ «Строительство»</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Science and Research Center of Construction</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2224-9494</issn><issn pub-type="epub">2782-3938</issn><publisher><publisher-name>АО «НИЦ «Строительство»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37538/2224-9494-2023-4(39)-7-27</article-id><article-id custom-type="edn" pub-id-type="custom">HFKNZG</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnikcstroy-343</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>СТРОИТЕЛЬНЫЕ КОНСТРУКЦИИ, ЗДАНИЯ И СООРУЖЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BUILDING CONSTRUCTIONS, BUILDINGS AND STRUCTURES</subject></subj-group></article-categories><title-group><article-title>Особенности построения конечно-элементной расчетной модели трубчатой башни ветроагрегата</article-title><trans-title-group xml:lang="en"><trans-title>Features of a finite-element modeling of a tubular tower for a wind-power unit</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>Гаранжа</surname><given-names>И. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Garanzha</surname><given-names>I. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Игорь Михайлович Гаранжа, канд. техн. наук, доцент, доцент кафедры металлических и деревянных конструкций</p><p>тел.: +7 (926) 284-55-17</p><p>Ярославское шоссе, д. 26, г. Москва, 129337, Российская Федерация</p></bio><bio xml:lang="en"><p>Igor M. Garanzha, Cand. Sci. (Engineering), Associate Professor, Department of Metal and Timber Structures</p><p>tel: +7 (926) 284-55-17</p><p>Yaroslavskoye Shosse, 26, Moscow, 129337, Russian Federation</p></bio><email xlink:type="simple">garigo@mail.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>Танасогло</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tanasoglo</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Владимирович Танасогло, канд. техн. наук, доцент, доцент кафедры металлических и деревянных конструкций</p><p>тел.: +7 (915) 544-36-23</p><p>Ярославское шоссе, д. 26, г. Москва, 129337, Российская Федерация</p></bio><bio xml:lang="en"><p>Anton V. Tanasoglo, Cand. Sci. (Engineering), Associate Professor, Department of Metal and Timber Structures</p><p>tel.: +7 (915) 544-36-23</p><p>Yaroslavskoye Shosse, 26, Moscow, 129337, Russian Federation</p></bio><email xlink:type="simple">a.v.tan@mail.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>Писарева</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Pisareva</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Милена Михайловна Писарева, студент кафедры металлических и деревянных конструкций</p><p>тел.: +7 (985) 906-51-93</p><p>Ярославское шоссе, д. 26, г. Москва, 129337, Российская Федерация</p></bio><bio xml:lang="en"><p>Milena M. Pisareva, Student, Department of Metal and Timber Structures</p><p>tel.: +7 (985) 906-51-93</p><p>Yaroslavskoye Shosse, 26, Moscow, 129337, Russian Federation</p></bio><email xlink:type="simple">milena.pisareva.02@bk.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» (НИУ МГСУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering (National Research University)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>17</day><month>12</month><year>2023</year></pub-date><volume>39</volume><issue>4</issue><fpage>7</fpage><lpage>27</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гаранжа И.М., Танасогло А.В., Писарева М.М., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Гаранжа И.М., Танасогло А.В., Писарева М.М.</copyright-holder><copyright-holder xml:lang="en">Garanzha I.M., Tanasoglo A.V., Pisareva M.M.</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://vestnik.cstroy.ru/jour/article/view/343">https://vestnik.cstroy.ru/jour/article/view/343</self-uri><abstract><sec><title>Введение</title><p>Введение. Не вызывает сомнений актуальность проблемы выявления особенностей моделирования сооружений башенного типа, что позволит упростить работу инженера и в то же время выйти на качественно новый уровень в принятии проектных решений.</p><p>Целью данной работы является комплексная оценка влияния особенностей создания расчетной схемы на результирующий параметр – частотное поведение трубчатой башни под ветроэнергетические установки</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Численные исследования проведены в отечественном ПВК SCAD Office. При создании расчетных моделей использованы типы КЭ 41, 42, 44 и 50. При определении оценки влияния типа конечного элемента были произведены расчеты цилиндрической башни с фиксированными параметрами с учетом изменений типа и размера КЭ. При расчетах оценивающими факторами являлись: изменение напряжений, а также изменение частоты первой формы собственных колебаний. При сравнении значений напряжений в качестве расчетной принималась пластина третьего ряда от закрепленного основания. В качестве ветроагрегатов рассмотрены установки Turbowind T600–48 и Eviag EV 100.</p></sec><sec><title>Результаты</title><p>Результаты. Достаточную величину дискретизации расчетной схемы для определения частоты собственных колебаний следует принимать nR = 12, т. к. дальнейшее увеличение значения nR приведет к изменению частоты собственных колебаний менее чем на 1 %. Определены фиксированные частоты для ветроагрегата Eviag EV 100, равные 0,275 и 0,825 Гц. Для Turbowind T600–48 определен диапазон резонансных частот по причине наличия переменной частоты вращения ротора: диапазон стартовых частот – от 0,255 до 0,765 Гц, а диапазон максимальных частот – от 0,383 до 1,149 Гц.</p></sec><sec><title>Выводы</title><p>Выводы. При формировании расчетной схемы башни в ПВК SCAD рационально использовать 44-й тип конечного элемента с учетом полученной достаточной величины дискретизации. Полученный спектр собственных и резонансных частот позволяет при принятии проектных решений избежать появления резонансного эффекта.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Being indisputably relevant, an identification of the features of modeling tower structures can simplify the work of engineers and simultaneously move the design decision-making to a qualitatively new level.</p></sec><sec><title>Aim</title><p>Aim. To assess the effect, caused by some particular features of a computational modelling, on the resulting parameter, representing the frequency behavior of a tubular tower for wind-power units.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. Numerical studies were conducted using a domestic SCAD Office programming and computing suite. In computational modeling, 41st, 42nd, 44th and 50th FE types were used. During the assessment of effects, caused by the finite element type, calculations of a cylindrical tower with fixed parameters were performed, taking into account variations in the type and size of the FE. Estimating factors in calculations included: variations in stresses, as well as in the frequency of first-mode natural oscillations. During the comparison of stress values, the plate of the third from the fixed base row was taken as the design one. Turbowind T600-48 and Eviag EV 100 were considered as wind turbines.</p></sec><sec><title>Results</title><p>Results. A sufficient discretization value of the computational model for determining the frequency of natural oscillations equals to nR = 12, since a further increase in the value of nR will lead to variations in the frequency of natural oscillations by less than 1%. The individual frequencies of 0.275 and 0.825 Hz were determined for an Eviag EV 100 wind turbine. For a Turbowind T600-48, the range of resonant frequencies is determined due to the presence of a variable rotor speed: starting and maximum frequency ranges of 0.255–0.765 and 0.383–1.149 Hz, respectively.</p></sec><sec><title>Conclusions</title><p>Conclusions. During the modeling of a tower in the SCAD Office PCS, it is feasible to use the 44th type of finite elements, taking into account the obtained sufficient discretization value. The obtained spectrum of natural and resonant frequencies allows avoiding the appearance of a resonant effect when making design decisions.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>трубчатая башня ветроагрегата</kwd><kwd>тип конечного элемента</kwd><kwd>частота собственных колебаний</kwd><kwd>форма собственных колебаний</kwd><kwd>частота вращений ветротурбины</kwd><kwd>дискретизация расчетной модели</kwd></kwd-group><kwd-group xml:lang="en"><kwd>wind turbine tubular tower</kwd><kwd>finite element type</kwd><kwd>natural oscillation frequency</kwd><kwd>natural oscillation mode</kwd><kwd>wind turbine rotation frequency</kwd><kwd>computational model discretization</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">Басов К.А. ANSYS для конструкторов. Москва: ДМК Пресс; 2019.</mixed-citation><mixed-citation xml:lang="en">Basov K.A. ANSYS for designers. 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