Investigation of the Uncoordinated Bolt Deformation of a Disc–Drum Combined Structure in a Turbine under Various Operating Conditions

At high speeds and under large axial forces, the disc–drum combined structure exhibits inconsistent deformation between parts. The difference in the structural characteristics of different parts, the speed, the preload, and its distribution mode, along with other factors, make the deformation of par...

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Main Authors: Haijun Wang, Pu Xue
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Machines
Subjects:
Online Access:https://www.mdpi.com/2075-1702/11/6/661
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author Haijun Wang
Pu Xue
author_facet Haijun Wang
Pu Xue
author_sort Haijun Wang
collection DOAJ
description At high speeds and under large axial forces, the disc–drum combined structure exhibits inconsistent deformation between parts. The difference in the structural characteristics of different parts, the speed, the preload, and its distribution mode, along with other factors, make the deformation of parts more complex, resulting in the deformation of parts during work; this deformation inconsistency has a direct impact on the engine performance. This paper presents a systemic investigation of the uncoordinated bolt deformation of an aeroengine. The finite element model of the disc–drum combined structure is established using Ansys workbench, where the deformation is uncoordinated. On this basis, the influence of different preload forces and various rotation speeds on the deformation discordance of the combined structure are discussed. Then, the relationship between the bolt deformation and component deformation incompatibility is obtained through a comprehensive analysis of the bolt deformation. A set of detailed analyses was carried out to investigate the uncoordinated deformation caused by the uneven distribution of the preload force.
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spelling doaj.art-745a9fcef87d4e01995453c7931a9dbf2023-11-18T11:21:17ZengMDPI AGMachines2075-17022023-06-0111666110.3390/machines11060661Investigation of the Uncoordinated Bolt Deformation of a Disc–Drum Combined Structure in a Turbine under Various Operating ConditionsHaijun Wang0Pu Xue1School of Aeronautics, Northwestern Polytechnical University, 127 Friendship West Road, Xi’an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, 127 Friendship West Road, Xi’an 710072, ChinaAt high speeds and under large axial forces, the disc–drum combined structure exhibits inconsistent deformation between parts. The difference in the structural characteristics of different parts, the speed, the preload, and its distribution mode, along with other factors, make the deformation of parts more complex, resulting in the deformation of parts during work; this deformation inconsistency has a direct impact on the engine performance. This paper presents a systemic investigation of the uncoordinated bolt deformation of an aeroengine. The finite element model of the disc–drum combined structure is established using Ansys workbench, where the deformation is uncoordinated. On this basis, the influence of different preload forces and various rotation speeds on the deformation discordance of the combined structure are discussed. Then, the relationship between the bolt deformation and component deformation incompatibility is obtained through a comprehensive analysis of the bolt deformation. A set of detailed analyses was carried out to investigate the uncoordinated deformation caused by the uneven distribution of the preload force.https://www.mdpi.com/2075-1702/11/6/661uncoordinated bolt deformationdisc–drum combined structureturbineuneven distribution
spellingShingle Haijun Wang
Pu Xue
Investigation of the Uncoordinated Bolt Deformation of a Disc–Drum Combined Structure in a Turbine under Various Operating Conditions
Machines
uncoordinated bolt deformation
disc–drum combined structure
turbine
uneven distribution
title Investigation of the Uncoordinated Bolt Deformation of a Disc–Drum Combined Structure in a Turbine under Various Operating Conditions
title_full Investigation of the Uncoordinated Bolt Deformation of a Disc–Drum Combined Structure in a Turbine under Various Operating Conditions
title_fullStr Investigation of the Uncoordinated Bolt Deformation of a Disc–Drum Combined Structure in a Turbine under Various Operating Conditions
title_full_unstemmed Investigation of the Uncoordinated Bolt Deformation of a Disc–Drum Combined Structure in a Turbine under Various Operating Conditions
title_short Investigation of the Uncoordinated Bolt Deformation of a Disc–Drum Combined Structure in a Turbine under Various Operating Conditions
title_sort investigation of the uncoordinated bolt deformation of a disc drum combined structure in a turbine under various operating conditions
topic uncoordinated bolt deformation
disc–drum combined structure
turbine
uneven distribution
url https://www.mdpi.com/2075-1702/11/6/661
work_keys_str_mv AT haijunwang investigationoftheuncoordinatedboltdeformationofadiscdrumcombinedstructureinaturbineundervariousoperatingconditions
AT puxue investigationoftheuncoordinatedboltdeformationofadiscdrumcombinedstructureinaturbineundervariousoperatingconditions