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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">phmath</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Государственного университета просвещения. Серия: Физика-Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Federal State University of Education. Series: Physics and Mathematics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2949-5083</issn><issn pub-type="epub">2949-5067</issn><publisher><publisher-name>Federal State University of Education</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18384/2310-7251-2019-4-17-21</article-id><article-id custom-type="elpub" pub-id-type="custom">phmath-29</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>РАЗДЕЛ II. ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SECTION II. PHYSICS</subject></subj-group></article-categories><title-group><article-title>ИЗОТЕРМИЧЕСКИЙ ПРИНЦИП ВИРТУАЛЬНЫХ РАБОТ</article-title><trans-title-group xml:lang="en"><trans-title>ISOTHERMAL PRINCIPLE OF VIRTUAL WORK</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>Соколов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolov</surname><given-names>V. V.</given-names></name></name-alternatives><email xlink:type="simple">v_sokolov@mirea.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>МИРЭА - Российский технологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA - Russian Technological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>15</day><month>02</month><year>2022</year></pub-date><volume>0</volume><issue>4</issue><fpage>17</fpage><lpage>21</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Соколов В.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Соколов В.В.</copyright-holder><copyright-holder xml:lang="en">Sokolov V.V.</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://www.physmathmgou.ru/jour/article/view/29">https://www.physmathmgou.ru/jour/article/view/29</self-uri><abstract><p>В рамках равновесной термодинамики получен изотермический принцип виртуальных работ для сжимаемого жидкого сплошного тела. Выведены условия механического равновесия внутри и на поверхности сжимаемого жидкого сплошного тела. Полученный изотермический принцип виртуальных работ представляет основу для описания динамики баротропной магнитной жидкости.</p></abstract><trans-abstract xml:lang="en"><p>The isothermal principle of virtual work for a compressible liquid continuum is derived using the equilibrium thermodynamics. The conditions for a mechanical equilibrium in the volume and on the surface of a compressible liquid continuum are obtained.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сжимаемое жидкое сплошное тело</kwd><kwd>виртуальная работа</kwd><kwd>виртуальное смещение</kwd><kwd>лагранжева вариация</kwd><kwd>удельная свободная энергия</kwd><kwd>соотношение Гиббса</kwd><kwd>условие равновесия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>compressible liquid continuum</kwd><kwd>virtual work</kwd><kwd>virtual displacement</kwd><kwd>Lagrangian variation</kwd><kwd>free energy density</kwd><kwd>Gibbs relation</kwd><kwd>equilibrium condition</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">Como M. Virtual displacements principle, existence and uniqueness for elastic no tension bodies // Meccanica. 2017. Vol. 52. Iss. 6. 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