ADiSS-Aeroelastic damping in separated flows
|Coordinator||GKN AEROSPACE SWEDEN AB - Avd 9005|
|Funding from Vinnova||SEK 3 609 100|
|Project duration||October 2019 - December 2022|
|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.