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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">vdgtu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Дагестанского государственного технического университета. Технические науки</journal-title><trans-title-group xml:lang="en"><trans-title>Herald of Dagestan State Technical University. Technical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-6185</issn><issn pub-type="epub">2542-095X</issn><publisher><publisher-name>Daghestan State Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21822/2073-6185-2020-47-4-8-19</article-id><article-id custom-type="elpub" pub-id-type="custom">vdgtu-872</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>ЭНЕРГЕТИЧЕСКОЕ, МЕТАЛЛУРГИЧЕСКОЕ И ХИМИЧЕСКОЕ МАШИНОСТРОЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER, METALLURGICAL AND CHEMICAL MECHANICAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Исследование погрешностей представления трехмерных моделей при определении параметров деталей приборов на примере двухмассовой вращающейся системы с упругой связью</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of errors in the representation of 3D models in determining the parameters of parts of devices BY the example of a two-mass rotating system with elastic coupling</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>Братчиков</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bratchikov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Братчиков Степан Артемьевич, аспирант, факультет систем управления и робототехники</p><p>197101, Санкт-Петербург, Кронверкский пр., д. 49, литер А</p></bio><bio xml:lang="en"><p>Stepan A. Bratchikov, Postgraduate Student, Faculty of Control Dystems and Robotics</p><p>49 Kronverksky Ave., bldg. A, Saint Petersburg 197101</p></bio><email xlink:type="simple">loross90@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>Абрамова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Abramova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абрамова Евгения Александровна, аспирант, факультет программной инженерии и компьютерной техники</p><p>197101, Санкт-Петербург, Кронверкский пр., д. 49, литер А</p></bio><bio xml:lang="en"><p>Evgeniia A. Abramova, Postgraduate Student, Faculty of Software Engineering and Computer Systems</p><p>49 Kronverksky Ave., bldg. A, Saint Petersburg 197101</p></bio><email xlink:type="simple">vectra4444@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ITMO University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>20</day><month>01</month><year>2021</year></pub-date><volume>47</volume><issue>4</issue><fpage>8</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Братчиков С.А., Абрамова Е.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Братчиков С.А., Абрамова Е.А.</copyright-holder><copyright-holder xml:lang="en">Bratchikov S.A., Abramova E.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://vestnik.dgtu.ru/jour/article/view/872">https://vestnik.dgtu.ru/jour/article/view/872</self-uri><abstract><sec><title>Цель</title><p>Цель. Целью исследования является рассмотрение области применения современных методов разработки и конструирования приборов с использованием средств трехмерного моделирования и симулирования физических процессов. Исследуется оправданность применения и критерии достоверности получаемых результатов при последовательном проектировании механической части электропривода и системы управления.</p></sec><sec><title>Метод</title><p>Метод. Рассматриваются способы модельного представления трехмерных объектов в системах автоматизированного проектирования, а также методы, применимые для решения задач определения деформаций под приложенной нагрузкой. На примере элементарного соединения проведено сравнение получаемых результатов динамической характеристики упругого вала в системе автоматизированного проектирования с расчитанным аналитически.</p></sec><sec><title>Результат</title><p>Результат. Определены основные принципы и соотношения, применимые для описания формы трехмерных моделей. Показаны методы, посредством которых возможно получение информации о массово центровочных характеристиках моделей. Приведены соотношения, которые положены в основу численных методов решения задач об определении упругих деформаций тел. Показана погрешность, которая может проявляться при использовании недостаточно малых элементарных объемов при решении задачи определения упругой деформации.</p></sec><sec><title>Вывод</title><p>Вывод. Использование трехмерного моделирования при проектировании сложных технических систем оправдано и ускоряет производственные процессы. Однако не всегда численные методы могут дать точный результат, что ведет к необходимости либо увеличивать сложность расчетов, либо к дополнительной подстройке некоторых параметров проектируемых приборов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective. The objective of the study is to consider the application field of modern device development and design methods using the means of 3D modeling and simulation of physical processes. The validity of the application and criteria for the reliability of the results obtained in the sequential design of the mechanical part of the electric drive and the control system are investigated.</p></sec><sec><title>Methods</title><p>Methods. Methods of model representation of 3D objects in computer-aided design systems are considered, as well as methods for solving problems of determining strain under the applied load. Using the example of an elementary joint, the obtained results of the dynamic characteristic of an elastic shaft in a computer-aided design system are compared with those calculated analytically.</p></sec><sec><title>Results</title><p>Results. The article defines the basic principles and relations applicable to describing the shape of 3D models. Methods are shown by which it is possible to obtain information about the mass-centering model characteristics. The relations that form the basis of numerical methods for solving problems of determining elastic deformations of bodies are also given. The error that can occur when using insufficiently small elementary volumes in solving the problem of determining elastic deformation is shown.</p></sec><sec><title>Conclusion</title><p>Conclusion. The use of 3D modeling in the design of complex technical systems is justified and speeds up production processes. However, numerical methods cannot always give an accurate result leading to the need to either increase the complexity of calculations or additionally adjust some designed device parameters.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>трехмерное моделирование</kwd><kwd>метод конечных элементов</kwd><kwd>система автоматизированного проектирования</kwd><kwd>математическая модель</kwd><kwd>погрешность численного метода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>3D modeling</kwd><kwd>finite element method</kwd><kwd>computer-aided design system</kwd><kwd>mathematical model</kwd><kwd>numerical method error</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">Lasi, H., Fettke, P., Kemper, H. G., Feld, T., Hoffmann, M. Industry 4.0 // Business &amp; information systems engineering. 2014. 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