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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">sibadi</journal-id><journal-title-group><journal-title xml:lang="ru">Научный рецензируемый журнал "Вестник СибАДИ"</journal-title><trans-title-group xml:lang="en"><trans-title>The Russian Automobile and Highway Industry Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2071-7296</issn><issn pub-type="epub">2658-5626</issn><publisher><publisher-name>The Siberian State Automobile and Highway University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26518/2071-7296-2017-6(58)-8-17</article-id><article-id custom-type="elpub" pub-id-type="custom">sibadi-502</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>ТРАНСПОРТНОЕ, ГОРНОЕ И СТРОИТЕЛЬНОЕ МАШИНОСТРОЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TRANSPORT, MINING AND BUILDING MACHINERY ENGINEERING</subject></subj-group></article-categories><title-group><article-title>ОПРЕДЕЛЕНИЕ КОЭФФИЦИЕНТОВ ВОССТАНОВЛЕНИЯ СКОРОСТЕЙ ПРИ УДАРЕ БОЙКА ПО ИНСТРУМЕНТУ В УЗЛАХ СТРОИТЕЛЬНЫХ И ГОРНЫХ МАШИН</article-title><trans-title-group xml:lang="en"><trans-title>DEFINITION OF COFFICIENTS RECOVERY SPEEDS AT IMPACT OF THE STRIKER ON THE TOOL AT THE NODES OF CONSTRUCTION AND MINING MACHINES</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>Стихановский</surname><given-names>Б. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Stikhanovskiy</surname><given-names>B. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор Омского государственного университета  путей сообщения</p><p>644046, г.Омск, пр. Маркса, 35</p></bio><bio xml:lang="en"><p>d-r of technical Sciences, professor </p><p>644046, Marksa,35 prospekt, Omsk, Russia</p></bio><email xlink:type="simple">bstish@mail.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>Стихановская</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Stikhanovskaya</surname><given-names>L. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент Сибирского государственного автомобильно- дорожного университета</p><p>644080, г.Омск, пр. Мира, 5</p></bio><bio xml:lang="en"><p>candidate of technical Sciences, associate Professor  </p><p>644080, Mira,5 prospect, Omsk, Russia</p></bio><email xlink:type="simple">stikhanovskaya@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФБГОУ ВО «СибАДИ»<country>Россия</country></aff><aff xml:lang="en">Omsk State Transport University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ФБГОУ ВО «СибАДИ»<country>Россия</country></aff><aff xml:lang="en">Sibirskaya State Automobile and Highway University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>12</day><month>01</month><year>2018</year></pub-date><volume>0</volume><issue>6(58)</issue><fpage>8</fpage><lpage>17</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Стихановский Б.Н., Стихановская Л.М., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Стихановский Б.Н., Стихановская Л.М.</copyright-holder><copyright-holder xml:lang="en">Stikhanovskiy B.N., Stikhanovskaya L.M.</copyright-holder><license 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.sibadi.org/jour/article/view/502">https://vestnik.sibadi.org/jour/article/view/502</self-uri><abstract><p>Рассмотрены процессы изменения величины коэффициента восстановления при прямом центральном ударе твердых деформируемых тел, т.к. значения коэффициента  восстановления необходимы для расчета динамики бойка и инструмента в механизмах  строительных и горных машин. Потери кинетической энергии соударяющихся тел после  каждого удара взаимосвязаны с модулем коэффициента восстановления, который может  изменяться для одного и того же материала от 0 до 1 при различной геометрии  взаимодействующих тел. Проведен анализ изменения величины коэффициента  восстановления от геометрии соударяющихся тел. При малых скоростях удара, если тела  имеют одинаковую форму и массу или когда ударяет стержень или шар о массивную и  жесткую преграду, коэффициент восстановления примерно равен 1. При ударе короткого  стержня по длинному и при одинаковых диаметрах и материалах тел коэффициент  восстановления равен отношению длин стержней и практически равен нулю при ударе  стержня по тонкой пластине. Для тел сложной формы рациональнее определять коэффициент восстановления опытным путем. Приведены экспериментальные  установки для определения величин коэффициентов восстановления, когда теоретически их сложно рассчитать, при малых скоростях удара – на горизонтальном и вертикальном  стендах, при средних и высоких скоростях – на копре, работающем по принципу накопления энергии для удара. При этом можно варьировать не только различные геометрии и  материалы соударяющихся тел, но и скорости их сближения непосредственно перед соприкосновением.</p></abstract><trans-abstract xml:lang="en"><p>The processes of value changing of the restitution coefficient in a direct сentral impact of deformable bodies are presented, because values of the  restitution coefficient are necessary for calculation the  striker dynamics and  the tool in the construction mechanisms and mining machines. The of kinetic energy loss of the colliding bodies after each impact is interrelated with the  module of the restitution coefficient , which can vary for the same material  from 0 to 1 at a different geometry of the interacting bodies .The analysis of  the coefficient changes because of the recovery factor from the geometry of  the colliding bodies is shown. At low impact velocities, when the bodies have  the same shape and weight or when they hit the rob or the globe on a  massive and hard obstacle, the recovery factor is approximately equal 1.  When short rod hits to long and with the same diameters and the materials  of the bodies, the restitution coefficient is equal the ratio of the lengths of the rods and it is also equal zero at impact of the rod on a thin plate. It is  more rational to determine the restitution coefficient experimentally for  bodies of complex shape. Experimental setup for determination of the  recovery coefficient is observed, when it is theoretically difficult to calculate,  especially at small impact velocities on horizontal and vertical stands or at  medium and high speeds, or in Koper, operating on the principle of  accumulation of energy for the shot. It is possible to vary not only the  different geometry and materials of the colliding bodies, but also their convergence rate before contact.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Коэффициент восстановления</kwd><kwd>скорость</kwd><kwd>удар</kwd><kwd>кинетическая энергия</kwd><kwd>инструмент</kwd><kwd>строительные и горные машины</kwd><kwd>боек</kwd></kwd-group><kwd-group xml:lang="en"><kwd>restitution coefficient</kwd><kwd>velocity</kwd><kwd>impact</kwd><kwd>kinetic energy</kwd><kwd>tool</kwd><kwd>construction and mining machinery</kwd><kwd>striker</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">Zhukov I.A. Rational designing two-stage anvil blocks of impact mechanisms / I.A. Zhukov, V.V. Molchanov // Advanced Materials Research.-2014.- Vol.1040.- P.699- 702.</mixed-citation><mixed-citation xml:lang="en">Zhukov I.A., Molchanov V.V. 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