Modeling of the Stress–Strain of the Suspensions of the Stators of High-Power Turbogenerators

In the submitted scientific work, the existing types of stator fastening design of turbogenerators and the main causes of the stressed state of the stator suspensions are considered. A detailed calculation of the complex stressed state of the turbogenerator stator suspension was carried out for a nu...

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Main Authors: Oleksii Tretiak, Dmitriy Kritskiy, Igor Kobzar, Victoria Sokolova, Mariia Arefieva, Iryna Tretiak, Hromenko Denys, Viacheslav Nazarenko
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Computation
Subjects:
Online Access:https://www.mdpi.com/2079-3197/10/11/191
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author Oleksii Tretiak
Dmitriy Kritskiy
Igor Kobzar
Victoria Sokolova
Mariia Arefieva
Iryna Tretiak
Hromenko Denys
Viacheslav Nazarenko
author_facet Oleksii Tretiak
Dmitriy Kritskiy
Igor Kobzar
Victoria Sokolova
Mariia Arefieva
Iryna Tretiak
Hromenko Denys
Viacheslav Nazarenko
author_sort Oleksii Tretiak
collection DOAJ
description In the submitted scientific work, the existing types of stator fastening design of turbogenerators and the main causes of the stressed state of the stator suspensions are considered. A detailed calculation of the complex stressed state of the turbogenerator stator suspension was carried out for a number of electrical sheet steels, taking into consideration the unevenness of the heat distribution along the horizontal axis of the unit. It is proposed that the calculation of the mechanical stress is carried out by means of the mechanical and thermal calculation, coordinated with the electrical one. The possibility of replacing steel 38Х2Н2ВА with steel 34CrNiMo6 and 40NiCrMo7 is indicated, subject to compliance with GOST 8479-70 for the same strength group.
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spelling doaj.art-0f613244661449e0b52f367cf17596a62023-11-24T04:13:53ZengMDPI AGComputation2079-31972022-10-01101119110.3390/computation10110191Modeling of the Stress–Strain of the Suspensions of the Stators of High-Power TurbogeneratorsOleksii Tretiak0Dmitriy Kritskiy1Igor Kobzar2Victoria Sokolova3Mariia Arefieva4Iryna Tretiak5Hromenko Denys6Viacheslav Nazarenko7Faculty of Aircraft Engineering, Department of Aerohydrodynamics, National Aerospace University «Kharkiv Aviation Institute», 61070 Kharkiv, UkraineDepartment of Information Technology Design, National Aerospace University «Kharkiv Aviation Institute», 61070 Kharkiv, UkraineSpecial Design Office for Turbogenerators and Hydrogenerators, Joint Stock Company “Ukrainian Energy Machines”, 61037 Kharkiv, UkraineNNI «Institute of Public Administration», V. N. Karazin Kharkiv National University 61070 Kharkiv, UkraineDepartment of Aerohydrodynamics, National Aerospace University «Kharkiv Aviation Institute», 61070 Kharkiv, UkraineAerospace Thermal Engineering Department, National Aerospace University «Kharkiv Aviation Institute», 61070 Kharkiv, UkraineFaculty of Aircraft Engineering, Department of Aerohydrodynamics, National Aerospace University «Kharkiv Aviation Institute», 61070 Kharkiv, UkraineFaculty of Aircraft Engineering, Department of Aerohydrodynamics, National Aerospace University «Kharkiv Aviation Institute», 61070 Kharkiv, UkraineIn the submitted scientific work, the existing types of stator fastening design of turbogenerators and the main causes of the stressed state of the stator suspensions are considered. A detailed calculation of the complex stressed state of the turbogenerator stator suspension was carried out for a number of electrical sheet steels, taking into consideration the unevenness of the heat distribution along the horizontal axis of the unit. It is proposed that the calculation of the mechanical stress is carried out by means of the mechanical and thermal calculation, coordinated with the electrical one. The possibility of replacing steel 38Х2Н2ВА with steel 34CrNiMo6 and 40NiCrMo7 is indicated, subject to compliance with GOST 8479-70 for the same strength group.https://www.mdpi.com/2079-3197/10/11/191turbogeneratorspring suspensionlimiting conditionsactive steelthe stator casing
spellingShingle Oleksii Tretiak
Dmitriy Kritskiy
Igor Kobzar
Victoria Sokolova
Mariia Arefieva
Iryna Tretiak
Hromenko Denys
Viacheslav Nazarenko
Modeling of the Stress–Strain of the Suspensions of the Stators of High-Power Turbogenerators
Computation
turbogenerator
spring suspension
limiting conditions
active steel
the stator casing
title Modeling of the Stress–Strain of the Suspensions of the Stators of High-Power Turbogenerators
title_full Modeling of the Stress–Strain of the Suspensions of the Stators of High-Power Turbogenerators
title_fullStr Modeling of the Stress–Strain of the Suspensions of the Stators of High-Power Turbogenerators
title_full_unstemmed Modeling of the Stress–Strain of the Suspensions of the Stators of High-Power Turbogenerators
title_short Modeling of the Stress–Strain of the Suspensions of the Stators of High-Power Turbogenerators
title_sort modeling of the stress strain of the suspensions of the stators of high power turbogenerators
topic turbogenerator
spring suspension
limiting conditions
active steel
the stator casing
url https://www.mdpi.com/2079-3197/10/11/191
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