ADiSS-Aeroelastic damping in separated flows

Reference number
Coordinator GKN AEROSPACE SWEDEN AB - Avd 9005
Funding from Vinnova SEK 3 609 100
Project duration October 2019 - December 2022
Status Ongoing
Venture National Aeronautical Research Program 7
Call Research project in aviation technology - spring 2019

Purpose and goal

To validate calculations of aerodynamic damping and flutter under conditions where available calculation methods are not fully validated or reliable. Aeromechanical blade vibrations are a challenge in design as well as in operation, and avoiding this is a major part of the blade design work. The goal directly in the project is to validate calculation methods with high quality measurements in the laboratory environment. Using these methods, more complex shapes can be used in design that lead to improvements in the industrial products.

Expected results and effects

The results from the measurements will be be used industrially to validate and calibrate the calculation methods used for aircraft engine compressors. In addition to being used for validation of methods that can be used industrially, the measurement results will be used to support the development of new generations of computational methods based on large-scale computer use which leads to new research in the area.

Planned approach and implementation

Within the project, a solid set of experimental aeroelastic data will be obtained. For this purpose, a unique experimental set-up will be developed at KTH that enables aeromechanical testing at appropriate flow conditions for relevant transonic compressor blade geometry developed by GKN. Testing at different load points and at various relevant tip clearances will provide a deeper understanding of how flutter properties are affected in a near stall operating areas.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 4 July 2019

Reference number 2019-02748

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