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 structural characteristics of different parts, speed, preload, its distribution mode, along with other factors, make parts more complex, resulting during work; this inconsistency has a direct impact on engine performance. This paper presents systemic investigation uncoordinated bolt an aeroengine. finite element model is established using Ansys workbench, where uncoordinated. On basis, influence preload forces various rotation discordance are discussed. Then, relationship component incompatibility obtained through comprehensive analysis deformation. A set detailed analyses was carried out to investigate caused by uneven force.