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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">izvestswsu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Юго-Западного государственного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Southwest State University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-1560</issn><issn pub-type="epub">2686-6757</issn><publisher><publisher-name>ЮЗГУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21869/2223-1560-2025-29-4-93-110</article-id><article-id custom-type="elpub" pub-id-type="custom">izvestswsu-1518</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>ИНФОРМАТИКА, ВЫЧИСЛИТЕЛЬНАЯ ТЕХНИКА И УПРАВЛЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>COMPUTER SCIENCE, COMPUTER ENGINEERING AND CONTROL</subject></subj-group></article-categories><title-group><article-title>Моделирование управляемого движения сферического магнитоактивного объекта в эластичном канале</article-title><trans-title-group xml:lang="en"><trans-title>Simulation of controlled motion of a spherical magnetically active object in an elastic channel</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7420-0772</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яцун</surname><given-names>С. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Yatsun</surname><given-names>S. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яцун Сергей Фёдорович, доктор технических наук, профессор, заведующий кафедрой  механики, мехатроники и робототехники</p><p>ул. 50 лет Октября, д. 94, г. Курск 305040</p></bio><bio xml:lang="en"><p>Sergey F. Yatsun, Dr. of Sci. (Engineering), Professor, Head of Mechanics, Mechatronics and Robotics Department</p><p>50 Let Oktyabrya str., 94, Kursk 305040</p></bio><email xlink:type="simple">teormeh@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2902-1721</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мальчиков</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mal’chikov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мальчиков Андрей Васильевич, кандидат технических наук, доцент, доцент  кафедры механики, мехатроники и робототехники</p><p>ResearcherID N-8856-2016</p><p>ул. 50 лет Октября, д. 94, г. Курск 305040</p></bio><bio xml:lang="en"><p>Andrey V. Mal’chikov, Cand. of Sci. (Engineering), Associate Professor, Associate Professor of Mechanics, Mechatronics and Robotics Department</p><p>50 Let Oktyabrya str., 94, Kursk 305040</p></bio><email xlink:type="simple">zveroknnp@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>Караськов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karas’kov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Караськов Всеволод Александрович, студент кафедры  механики, мехатроники и робототехники </p><p>ул. 50 лет Октября, д. 94, г. Курск 305040</p></bio><bio xml:lang="en"><p>Vsevolod A. Karas’kov, Student of Mechatronics and Robotics Department</p><p> 50 Let Oktyabrya str., 94, Kursk 305040</p></bio><email xlink:type="simple">teormeh@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Юго-Западный государственный университет</institution></aff><aff xml:lang="en"><institution>Southwest State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>08</day><month>01</month><year>2026</year></pub-date><volume>29</volume><issue>4</issue><fpage>93</fpage><lpage>110</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Яцун С.Ф., Мальчиков А.В., Караськов В.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Яцун С.Ф., Мальчиков А.В., Караськов В.А.</copyright-holder><copyright-holder xml:lang="en">Yatsun S.F., Mal’chikov A.V., Karas’kov 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://izvestswsu.elpub.ru/jour/article/view/1518">https://izvestswsu.elpub.ru/jour/article/view/1518</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования. Математическое моделирование динамики управляемого движения сферического магнитоактивного объекта в криволинейном канале посредством внешнего магнитного поля, создаваемого подвижным постоянным магнитом.</p></sec><sec><title>Задачи</title><p>Задачи. Разработка системы дифференциальных уравнений, описывающих управляемое движение магнитоактивного объекта в криволинейном эластичном канале. Разработка алгоритмов локализации магнитоактивного объекта внутри канала, расчета нормали и величины деформации при контактном взаимодействии. Постановка вычислительных экспериментов с целью определения характера движения магнитоактивного объекта в криволинейном канале и получения предельных значений параметров системы, обеспечивающих управляемость микроробота за счет перемещения постоянного магнита.</p></sec><sec><title>Методы</title><p>Методы. При моделировании движения магнитоактивного микроробота внутри биологически-инспирированного криволинейного канала используется система дифференциальных уравнений и уравнений для внешнего неоднородного магнитного поля. Модель учитывает силы магнитного воздействия, силы сопротивления среды, силы инерции и силу тяжести. Для решения уравнений динамики системы применяются методы численного интегрирования. В рамках данного исследования модель реализована с помощью программного пакета MATLAB.</p></sec><sec><title>Результаты</title><p>Результаты. В работе представлена математическая модель движения управляемой магнитоактивного сферического объекта в криволинейном эластичном канале, имитирующем кровеносный сосуд. Разработанная модель учитывает гидродинамическое сопротивление, взаимодействие с деформируемыми стенками канала и внешнее магнитное воздействие. Проведенные численные эксперименты демонстрируют возможность предсказания траектории движения объекта и выявляют предельные значения параметров системы, при которых сохраняется управляемость магнитоактивным микророботом.</p></sec><sec><title>Заключение</title><p>Заключение. Перемещение частицы по синусоидальному каналу эффективно обеспечивается воздействием постоянного магнита. Возникающая нормальная реакция стенки канала не превышает допустимых для сосудистых структур значений, составляя до 5 мН в пике и около 1 мН при длительном воздействии. Учёт ключевых физико-геометрических параметров, таких как форма канала, свойства магнитоактивного объекта, вязкость среды, силы трения и пондеромоторное воздействие, обеспечивает универсальность модели. Предложенная методология может быть использована для оптимизации алгоритмов магнитной навигации в задачах эндоваскулярной эмболизации, адресной доставки лекарственных средств и других перспективных медицинских методик.  </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose of reseach</title><p>Purpose of reseach. Mathematical modeling of the dynamics of controlled motion of a spherical magnetically active object in a curved channel by means of an external magnetic field created by a movable permanent magnet</p></sec><sec><title>Tasks</title><p>Tasks. Development of a system of differential equations describing the controlled motion of a magnetically active object in a curved elastic channel. Development of algorithms for localization of a magnetically active object inside a channel, calculation of the normal and magnitude of deformation during contact interaction. Setting up computational experiments in order to determine the nature of the movement of a magnetically active object in a curved channel and obtain the maximum values of the system parameters that ensure the controllability of the microrobot due to the movement of a permanent magnet.</p></sec><sec><title>Methods</title><p>Methods. When modeling the motion of a magnetically active microrobot inside a biologically inspired curved channel, a system of differential equations and equations for an external inhomogeneous magnetic field is used. The model takes into account magnetic forces, environmental resistance forces, inertia forces, and gravity. Numerical integration methods are used to solve the equations of system dynamics. In the framework of this study, the model was implemented using the MATLAB.</p></sec><sec><title>Results</title><p>Results. The paper presents a mathematical model of the motion of a controlled magnetically active spherical object in a curved elastic channel simulating a blood vessel. The developed model takes into account hydrodynamic resistance, interaction with deformable channel walls and external magnetic influence. The numerical experiments performed demonstrate the possibility of predicting the trajectory of an object and reveal the limiting values of the system parameters at which controllability by a magnetically active microrobot is maintained.</p></sec><sec><title>Conclusions</title><p>Conclusions. The movement of the particle along the sinusoidal channel is effectively ensured by the action of a permanent magnet. The resulting normal reaction of the canal wall does not exceed the values allowed for vascular structures, amounting to 5 mN at the peak and about 1 mN with prolonged exposure. Taking into account key physical and geometric parameters, such as the channel shape, magnetically active object properties, viscosity of the medium, friction forces and ponderomotor action, ensures the versatility of the model. The proposed methodology can be used to optimize magnetic navigation algorithms for endovascular embolization, targeted drug delivery, and other promising medical techniques.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>магнитная навигация</kwd><kwd>эндоваскулярная эмболизация</kwd><kwd>магнитные микророботы</kwd><kwd>численное моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>magnetic navigation</kwd><kwd>endovascular embolization</kwd><kwd>magnetic microrobots</kwd><kwd>numerical modeling</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Госзадания Минобрнауки России по теме «Разработка методов синтеза адаптивных и интеллектуальных робототехнических устройств и комплексов в целях расширения функциональных технологических и производственный возможностей человека» (соглашение № 075-03-2025-526).</funding-statement><funding-statement xml:lang="en">The work was carried out with the support of the State Assignment of the Ministry of Education and Science of the Russian Federation, project № 075-03-2025-526 «Development of methods for synthesizing adaptive and intelligent robotic devices and complexes in order to expand the functional technological and production capabilities of humans»</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">Nguyen K.T., Go G., Jin Z., et al. 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