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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Engineering Research</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Engineering Research</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Инженерные исследования</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-8143</issn><issn publication-format="electronic">2312-8151</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">48343</article-id><article-id pub-id-type="doi">10.22363/2312-8143-2025-26-4-388-398</article-id><article-id pub-id-type="edn">CVQUKW</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Aircraft Pitch Control Via Parametric Identification and PID Optimization</article-title><trans-title-group xml:lang="ru"><trans-title>Управление самолетом по тангажу с помощью параметрической идентификации и ПИД-оптимизации</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-2475-2875</contrib-id><name-alternatives><name xml:lang="en"><surname>San</surname><given-names>Lin Aung</given-names></name><name xml:lang="ru"><surname>Сан</surname><given-names>Лин Аунг</given-names></name></name-alternatives><bio xml:lang="en"><p>Master student</p></bio><bio xml:lang="ru"><p>магистрант</p></bio><email>sunlinaung91788@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Higher Education Center of the Defence Services Academy</institution></aff><aff><institution xml:lang="ru">Центр высшего образования Академии вооруженных сил</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-25" publication-format="electronic"><day>25</day><month>12</month><year>2025</year></pub-date><volume>26</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>388</fpage><lpage>398</lpage><history><date date-type="received" iso-8601-date="2026-02-02"><day>02</day><month>02</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, San L.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Сан Л.А.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">San L.A.</copyright-holder><copyright-holder xml:lang="ru">Сан Л.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/engineering-researches/article/view/48343">https://journals.rudn.ru/engineering-researches/article/view/48343</self-uri><abstract xml:lang="en"><p>A comprehensive methodology for designing an aircraft pitch angle control system is proposed, combining mathematical modeling, aerodynamic parameter identification, and controller optimization. A comparative study was conducted on the accuracy of the Euler and 4th-order Runge-Kutta methods for numerical integration of longitudinal short period motion equations in identification tasks. It was established that the Runge-Kutta method provides higher accuracy for estimating aerodynamic force coefficients, while the Euler method is preferable for moment analysis, defining the criteria for algorithm selection during data generation. Automated tuning of the PID controller in Simulink achieved record dynamic system performance characteristics (without considering the actuator): rise time - 0.0709 s, overshoot - 11.6%, which is 20-30% superior to results from known counterparts. The developed approach demonstrates the possibility of replacing labor-intensive flight tests with digital models while maintaining accuracy, thereby reducing design time. The results confirm that the integration of numerical modeling, parametric identification, and optimization forms a new standard for preliminary studies in aviation technology, aligning with the digitalization trends in the aerospace industry.</p></abstract><trans-abstract xml:lang="ru"><p>Предложена комплексная методология проектирования системы управления углом тангажа самолета, сочетающая математическое моделирование, идентификацию аэродинамических параметров и оптимизацию регуляторов. Проведено сравнительное исследование точности методов Эйлера и Рунге - Кутты 4-го порядка при численном интегрировании уравнений короткопериодического движения для задач идентификации. Установлено, что метод Рунге - Кутты обеспечивает повышенную точность оценки аэродинамических коэффициентов силы, а метод Эйлера предпочтителен для анализа моментов, что определяет критерии выбора алгоритмов при генерации данных. Автоматизированная настройка ПИД-регулятора в Simulink позволила достичь рекордных динамических характеристик системы без учета рулевого привода: время нарастания - 0,0709 с, перерегулирование - 11,6 %, что на 20-30 % превосходит результаты известных аналогов. Разработанный подход демонстрирует возможность замены трудоемких натурных экспериментов цифровыми моделями с сохранением точности, сокращая сроки проектирования. Результаты подтверждают, что интеграция численного моделирования, параметрической идентификации и оптимизации формирует новый стандарт для предварительных исследований в сфере авиационной техники, соответствующий тенденциям цифровизации аэрокосмической отрасли.</p></trans-abstract><kwd-group xml:lang="en"><kwd>approximate modeling</kwd><kwd>accuracy of estimates</kwd><kwd>estimates of coefficients</kwd><kwd>Euler method</kwd><kwd>Runge - Kutta method</kwd><kwd>control system synthesis</kwd><kwd>auto-tunning</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>приближенное моделирование</kwd><kwd>точность оценок</kwd><kwd>оценки коэффициентов</kwd><kwd>метод Эйлера</kwd><kwd>метод Рунге-Кутты</kwd><kwd>синтез системы управления</kwd><kwd>автонастройка</kwd></kwd-group><funding-group/></article-meta><fn-group/></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Efremov AV, Zakharchenko VF, Ovcharenko VN, Sukhanov VL. 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