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Deformations and Life Periods of the Switch Chairs of the Rail Switches

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International Scientific Conference Energy Management of Municipal Facilities and Sustainable Energy Technologies EMMFT 2019 (EMMFT 2019)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 1258))

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Abstract

Observations of the operation of the switch chairs show that they are deformed during operation. In some cases, their deformations appear in the form of cracks due to the high level of bending stresses. The switch chair is a plate of variable stiffness lying on an elastic foundation. The paper considers the built probabilistic model of the operation of switch chairs of the rail switches on reinforced concrete bars, well consistent with the results of the trial operation of such switches, which allows calculating the failure distribution of switch chairs depending on the characteristics of the metal from which they are made, the initial tightening of the fasteners and the stress spectrum arising from train load. The graphs of failures of switch chairs in transit at various axial loads, obtained using the developed model, make it possible to plan the replacement of switch chairs of the rail switchers with reinforced concrete beams when changing the main metal parts. With an average network axial load of 140 kN, at the time of the first change of metal parts, it is necessary to prepare a replacement of 2–3% of switch chairs. With increased axial loads of 250 kN, the number of replaceable switch chairs should be about 16%.

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Authors and Affiliations

  1. Railway Research Institute (JSC VNIIZhT), 3rd Mytischinskaya Str., 10, Moscow, 129626, Russia

    Boris Glusberg

  2. Russian University of Transport (MIIT), Chasovaya Str. 22/2, 125190, Moscow, Russia

    Alexey Loktev, Vadim Korolev & Irina Shishkina

  3. JSC “Novosibirsk Switch Factory”, Aksenova Str., 7, 630025, Novosibirsk, Russia

    Mikhail Berezovsky & Pavel Trigubchak

Authors
  1. Boris Glusberg
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  2. Alexey Loktev
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  3. Vadim Korolev
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  4. Irina Shishkina
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  5. Mikhail Berezovsky
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  6. Pavel Trigubchak
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Corresponding author

Correspondence to Irina Shishkina .

Editor information

Editors and Affiliations

  1. Peter the Great St.Petersburg Polytechnic, Saint Petersburg, Russia

    Vera Murgul

  2. Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russia

    Viktor Pukhkal

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Glusberg, B., Loktev, A., Korolev, V., Shishkina, I., Berezovsky, M., Trigubchak, P. (2021). Deformations and Life Periods of the Switch Chairs of the Rail Switches. In: Murgul, V., Pukhkal, V. (eds) International Scientific Conference Energy Management of Municipal Facilities and Sustainable Energy Technologies EMMFT 2019. EMMFT 2019. Advances in Intelligent Systems and Computing, vol 1258. Springer, Cham. https://doi.org/10.1007/978-3-030-57450-5_17

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