Development of instrumentation to capture unsteady & flutter phenomena in the fan rotors of Gas Turbine Engines

A prototype three stage axial fan was designed for (≈ 3.5:1) pressure ratio with transonic blading. Initial tests had shown the symptoms of flutter at part speed even at ISA-SLS inlet conditions. The intensity of flutter became severe at higher inlet P and T conditions. The fan was modified with cas...

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Bibliographische Detailangaben
Hauptverfasser:	Jha, B. K., Rao, A. N. V., Pratap, A., Rao Mohana, T., Singh, A. K., Khorikov, A. A.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	aerodynamic aeroelastic Blades Compressor Computational Fluid Dynamics (CFD) Fan flutter frequency spectrum Gas turbine Engine Harmonic analysis ISA-SLS kulite Mathematical model nodal Diameter/number Oscillators pulsation Resonant frequency Rotating Frame rotating stalls Rotors rpm stationary frame stators Strain
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