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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Proceedings of Petersburg Transport University</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Proceedings of Petersburg Transport University</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Известия Петербургского университета путей сообщения</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">1815-588X</issn>
   <issn publication-format="online">2658-6851</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">51164</article-id>
   <article-id pub-id-type="doi">10.20295/1815-588X-2022-19-2-242-248</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Проблематика транспортных систем</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>PROBLEMATIC OF TRANSPORT SYSTEM</subject>
    </subj-group>
    <subj-group>
     <subject>Проблематика транспортных систем</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Influence of Thermomechanical Workload on the Aging of Insulation of Traction Electric Motors of Diesel Locomotives</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Влияние термомеханической нагрузки на старение изоляции тяговых электродвигателей тепловозов</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шрайбер</surname>
       <given-names>Марина Александровна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shrayber</surname>
       <given-names>Marina Aleksandrovna</given-names>
      </name>
     </name-alternatives>
     <email>goshapti4ka@yandex.ru</email>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Петербургский государственный университет путей сообщения Императора Александра I</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Emperor Alexander I St. Petersburg State Transport University</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-06-22T18:17:24+03:00">
    <day>22</day>
    <month>06</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-06-22T18:17:24+03:00">
    <day>22</day>
    <month>06</month>
    <year>2022</year>
   </pub-date>
   <volume>19</volume>
   <issue>2</issue>
   <fpage>242</fpage>
   <lpage>248</lpage>
   <history>
    <date date-type="received" iso-8601-date="2022-06-22T00:00:00+03:00">
     <day>22</day>
     <month>06</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://pgups.editorum.ru/en/nauka/article/51164/view">https://pgups.editorum.ru/en/nauka/article/51164/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель: Рассмотреть задачу повышения надежности тяговых электрических машин. Выполнить оценку влияния термомеханических напряжений на срок службы изоляционного материала тяговых электродвигателей. Методы: Основным методом исследования и расчета температурных полей выбран метод конечных элементов, выполненный в программном пакете SolidWorks 2005. Результаты: Результаты показывают, что термомеханические напряжения играют значительную роль во время динамического термического старения системы изоляции обмотки статора. При динамическом изменении температуры изоляционная система испытывает повторяющиеся термомеханические нагрузки, поскольку коэффициенты теплового расширения изоляционных материалов и медных проводников различны. Практическая значимость: Выявлена необходимость дальнейшего изучения фактического теплового состояния электрических машин, которая позволит повысить точность определения температуры, предупредить возможный перегрев в эксплуатации, тем самым продлив ресурс тяговых двигателей, и снизить вероятность внезапных отказов. Разработанные методы определения теплового состояния электрических машин рекомендуются к практическому использованию.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Purpose: To consider the problem of increasing the reliability of traction electric machines. To assess the effect of thermomechanical stresses on the service lifetime of insulating material of traction electric motors. Methods: Finite element method, implemented in SolidWorks 2005 software package, was chosen as the main method for studying and calculating temperature fields. Results: The results show that thermomechanical stresses play a significant role during dynamic thermal aging of stator winding insulation system. With dynamic temperature changes, an insulation system experiences repeated thermomechanical stresses since the coefficients of thermal expansion of insulating materials and copper conductors are different. Practical importance: The need for further study of the actual thermal state of electrical machines has been identified which will allow to a rise temperature definition accuracy, to give a warning for possible overheating in operation by that extending traction motor lifetime and reducing sudden failure likelihood. The developed methods for determining electrical machine thermal state are recommended for practical use.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>тяговый электродвигатель локомотива</kwd>
    <kwd>тепловые процессы электрических машин</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>locomotive traction motor</kwd>
    <kwd>thermal processes of electrical machines</kwd>
   </kwd-group>
  </article-meta>
 </front>
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