Influence of Regeneration-induced Mistuning on the Aeroelasticity of Multi-Stage Axial Compressors (C06)

• Subject Area: Mechanics ; Hydraulic and Turbo Engines and Piston Engines
• Term: from 2014 to 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 119193472

The sub-project C6 deals with the aeroelasticity of mistuned axial compressors with multiple stages. Operation and regeneration of jet-engines causes deviations from the nominal blade geometries, impacting vibrations during use. The aim of this sub-project is to investigate these vibrations using an improved simulation methodology. The main focus is the influence of the aerodynamic and structural coupling of compressor blades between different stages. Intentional and random mistuning is taken into account. The methodology is validated experimentally.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 871: Regeneration of Complex Capital Goods
• Applicant Institution: Gottfried Wilhelm Leibniz Universität Hannover
• Project Heads: Dr.-Ing. Lars Panning-von Scheidt; Professor Dr.-Ing. Jörg Seume; Professor Dr.-Ing. Jörg Wallaschek