The Pazy wing is an aeroelastic benchmark wing designed to explore nonlinear aeroelastic phenomena due to large deformations and gather data for model validation. The Pazy wing was tested in the low-speed wind tunnel at the Technion at static loading conditions that led to deformations in the order of the wing’s semi-span. The wing underwent limit cycle oscillations at some airspeed and angle of attack combinations. Our research papers describe the Pazy wing’s design, the analyses conducted using the Modal Rotation Method, the test results, and insight into the wing’s nonlinear aeroelastic behavior. The Pazy wing was studied within the Third Aeroelastic Prediction Workshop.
More Information
- Watch a video of the Pazy wing in LCO. The video starts with the wing set at a 7-degree angle of attack (shown as AL1 in the video). As the airspeed increases, the wing enters LCO and then, as the airspeed further increases, the wing stabilizes. Then, the angle of attack is reduced to 5 degrees and the wing goes through LCO again as the airspeed is reduced.
- Watch my presentation on the Analysis and Testing of the Pazy Benchmark Wing at the AR20+: Workshop on High Aspect Ratio Wing Technologies, Imperial College, October 2023.
People
Arik Drachinsky, Or Avin
Collaborators/Alums:
Norberto Goizueta, Professor Rafa Palacios, Maxim Freydin
Journal Publications
- O. Avin et al., “Experimental Aeroelastic Benchmark of a Very Flexible Wing“. AIAA Journal, Vol. 60, No. 3, 2022.
- A. Drachinsky and D. Raveh, “Nonlinear Aeroelastic Analysis of Highly Flexible Wings Using the Modal Rotation Method“. AIAA Journal, Vol. 60, No. 5, 2022.
- A. Drachinsky et al., “Flutter Tests of the Pazy Wing“. AIAA Journal, Vol. 60, No. 9, 2022.
- N. Goizueta et al., “Flutter Predictions for Very Flexible Wing Wind Tunnel Test“. Journal of Aircraft, Vol. 59, No. 4, 2022.
- A. Drachinsky et al., “Large Deformation Shape Sensing Using a Nonlinear Strain to Displacement Method“. AIAA Journal, Vol. 60, No. 9, 2022.
Conference Papers
Workshop Presentations
- D.E. Raveh “Analysis and Testing of the Pazy Benchmark Wing” AR20+: Workshop on High Aspect Ratio Wing Technologies, Imperial College, October 2023.
