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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">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2021-22-1-390-402</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-954</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>История математики и приложений</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Сomputer science</subject></subj-group></article-categories><title-group><article-title>Математические закономерности изменения характеристик процесса трения пористого композиционного материала на основе меди, содержащего масло с частицами графена</article-title><trans-title-group xml:lang="en"><trans-title>Mathematical regularities of changes in the characteristics of the friction process of a porous composite material based on copper containing oil with graphene particles</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>Бреки</surname><given-names>Александр Джалюльевич</given-names></name><name name-style="western" xml:lang="en"><surname>Breki</surname><given-names>Alexander Dzhalyulyevich</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент</p></bio><bio xml:lang="en"><p>сandidate of technical sciences, associate professor</p></bio><email xlink:type="simple">albreki@yandex.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>Чулкин</surname><given-names>Сергей Георгиевич</given-names></name><name name-style="western" xml:lang="en"><surname>Chulkin</surname><given-names>Sergey Georgievich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of technical sciences, professor</p></bio><email xlink:type="simple">sergej.chulkin@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колмаков</surname><given-names>Алексей Георгьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Kolmakov</surname><given-names>Alexey Georgievich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of technical sciences, professor</p></bio><email xlink:type="simple">kolmakov@imet.ac.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузовлева</surname><given-names>Ольга Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzovleva</surname><given-names>Olga Vladimirovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент</p></bio><bio xml:lang="en"><p>candidate of technical Sciences, docent</p></bio><email xlink:type="simple">kusovleva@yandex.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гвоздев</surname><given-names>Александр Евгеньевич</given-names></name><name name-style="western" xml:lang="en"><surname>Gvozdev</surname><given-names>Alexandr Evgenyevich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of engineering, professor</p></bio><email xlink:type="simple">gwozdew.alexandr2013@yandex.ru</email><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мазин</surname><given-names>Евгений Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Mazin</surname><given-names>Evgeny Vladimirovich</given-names></name></name-alternatives><email xlink:type="simple">mazinev@mail.ru</email><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузьмин</surname><given-names>Алексей Михайлович</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzmin</surname><given-names>Alexey Mikhaylovich</given-names></name></name-alternatives><email xlink:type="simple">kuzmin_am@ckbm.ru</email><xref ref-type="aff" rid="aff-7"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский политехнический университет Петра Великого, Институт проблем машиноведения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peter the Great St. Petersburg Polytechnic University, Institute of Problems of Machine Science of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный морской технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg State Marine Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ИМЕТ РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>IMET RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Российский государственный университет правосудия</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian StateUniversity of justice</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Тульский государственный педагогический университет им. Л.Н. Толстого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tula State Pedagogical University L.N. Tolstoy</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>ООО НПО «Графеновые материалы»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC NPO «Graphene materials»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-7"><aff xml:lang="ru"><institution>АО «ЦКБМ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC «TSKBM»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>07</day><month>04</month><year>2021</year></pub-date><volume>22</volume><issue>1</issue><fpage>390</fpage><lpage>402</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бреки А.Д., Чулкин С.Г., Колмаков А.Г., Кузовлева О.В., Гвоздев А.Е., Мазин Е.В., Кузьмин А.М., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Бреки А.Д., Чулкин С.Г., Колмаков А.Г., Кузовлева О.В., Гвоздев А.Е., Мазин Е.В., Кузьмин А.М.</copyright-holder><copyright-holder xml:lang="en">Breki A.D., Chulkin S.G., Kolmakov A.G., Kuzovleva O.V., Gvozdev A.E., Mazin E.V., Kuzmin A.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://www.chebsbornik.ru/jour/article/view/954">https://www.chebsbornik.ru/jour/article/view/954</self-uri><abstract><p>В работе приведены результаты исследования процессов трения скольжения пористого материала на основе меди, пропитанного смазочным маслом с дисперсными частицамифторированного графена. Установлены математические закономерности изменения характеристик фрикционного взаимодействия. Показано, что закономерности изменения средней силы трения имеют сигмоидально-ступенчатый характер. Получены экспериментальные результаты, показывающие, что с увеличением концентрации агрегатов из чешуек фторированного графена в смазочном масле средняя сила трения и коэффициент трения снижаются, при этом наблюдается хороший антифрикционный эффект. Показано, что средняя работа силы трения, а соответственно и энергетические потери на трение, при добавлении в смазочное масло 0,01% агрегатов из чешуек фторированного графена уменьшается на 3721 Дж, а при добавлении 0,1% — на 4098 Дж. Установлено, что средний коэффициент трения при добавлении в смазочное масло 0,01% агрегатов из чешуек фторированного графена уменьшается на 27%, а при добавлении 0,1% — на 30%.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents the results of a study of the sliding friction processes of a porous copper-based material impregnated with lubricating oil with dispersed particles of fluorinated graphene. Mathematical regularities of changes in the characteristics of the friction interaction are established. It is shown that the regularities of changes in the average friction force have asigmoid-step character. Experimental results have been obtained showing that with an increase in the concentration of aggregates from flakes of fluorinated graphene in the lubricating oil,the average friction force and coefficient of friction decrease, while a good anti-friction effect is observed. It is shown that the average work of the friction force, and consequently the energylosses due to friction, when adding 0.01% of aggregates from fluorinated graphene flakes to the lubricating oil decreases by 3721 j, and when adding 0.1% — by 4098 j. It was found that theaverage coefficient of friction when adding 0.01% of fluorinated graphene flake aggregates to the lubricating oil decreases by 27%, and when adding 0.1% — by 30%.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пористый материал на основе меди</kwd><kwd>сигмоидально-ступенчатые зако- номерности трения</kwd><kwd>смазочная композиция</kwd><kwd>трение</kwd><kwd>фторированный графен</kwd></kwd-group><kwd-group xml:lang="en"><kwd>copper-based porous material</kwd><kwd>sigmoid-step friction patterns</kwd><kwd>lubricant composition</kwd><kwd>friction</kwd><kwd>fluorinated graphene</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке Минобрнауки Россси в рамках реализации програм- мы Научного центра мирового уровня по направлению "Передовые цифровые технологии"СПбПУ (соглашение от 17.11.2020 № 075-15-2020-934)</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">Соловьев М. 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