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Теоретико-экспериментальная оценка показателей прочности корпусов тяговых редукторов сварной конструкции кэврз для электропоездов серий Эр2, эр9

Теоретико-экспериментальная оценка показателей прочности корпусов тяговых редукторов сварной конструкции кэврз для электропоездов серий Эр2, эр9

Abstract

Purpose. To check meeting the requirements of Standards for experimental specimens of traction gear boxes for electric trains of series ER2, ER9 with housings of welded construction by Kiev Electric Wagon Repair Works (KEVRZ). Methodology. To reach the objective in hand, performing the work, some computational models for theoretical determination of the stress levels in the reduction-gear housing of welded construction by simulating the loading conditions that can take place during the operation have been developed and the stresses at different points of the reduction-gear housing as well as the levels of vertical accelerations of the reduction-gear housing and loading of the unit of connecting the housing to the bodies frame have been experimentally evaluated. Findings. On the basis of analysis of the calculation results obtained meeting the requirements of Standards for traction reduction gears with the housings of welded construction by KEVRZ has been found. Originality. Based on the experimental and theoretical investigations, the scientific support of works on developing and putting into operation the renovated traction reduction gears for electric trains of series ER2, ER9 has been completed. Practical value. A technical solution with the measures to be fulfilled in operation of electric trains of the mentioned series with traction reduction-gear housings of welded construction by KEVRZ has been developed and given to experts of Ukrzaliznytsia to introduce the proposed measures during repairs.

Цель. Проверка соответствия требованиям Норм [10] экспериментальных образцов тяговых редукторов для электропоездов серий ЭР2, ЭР9 с корпусами сварной конструкции производства Киевского электро-вагоноремонтного завода (КЭВРЗ). Методика. Для достижения поставленной цели были разработаны рас-четные модели для теоретического определения уровней напряжений в корпусе тягового редуктора сварной конструкции путем моделирования нагруженности, которая может создаваться в условиях эксплуатации, и экспериментально оценены напряжения в разных точках корпуса тягового редуктора, а также уровни вер-тикальных ускорений корпуса тягового редуктора и нагруженности узла прикрепления корпуса к раме тележки. Результаты. На основании анализа полученных результатов расчетов было установлено соответствие требованиям Норм тяговых редукторов с корпусами сварной конструкции КЭВРЗ. Научная новизна. На основании экспериментальных и теоретических исследований выполнено научное сопровож-дение работ по разработке и вводу в эксплуатацию обновленных тяговых редукторов для электропоездов серий ЭР2, ЭР9. Практическая значимость. Разработано и передано специалистам Укрзализныци техниче-ское решение с мерами, которые должны выполняться при эксплуатации и ремонте электропоездов указан-ных серий с корпусами тяговых редукторов сварной конструкции КЭВРЗ.

Keywords

РОЗРАХУНКОВі МОДЕЛі, ТЕОРЕТИЧНі РОЗРАХУНКИ, ЕЛЕКТРОПОїЗДИ СЕРії ЕР2, МОТОРНИЙ ВіЗОК, ТЯГОВИЙ РЕДУКТОР, ПОКАЗНИКИ МіЦНОСТі, ЕЛЕКТРОПОїЗДИ СЕРії ЕР9, РАСЧЕТНЫЕ МОДЕЛИ, ТЕОРЕТИЧЕСКИЕ РАСЧЕТЫ, ЭЛЕКТРОПОЕЗДА СЕРИИ ЭР2, МОТОРНАЯ ТЕЛЕЖКА, ТЯГОВЫЙ РЕДУКТОР, ПОКАЗАТЕЛИ ПРОЧНОСТИ, ЭЛЕКТРОПОЕЗДА СЕРИИ ЭР9

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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