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Evaluation of an Aerodynamically Driven Model Mount for Dynamic Wind Tunnel Testing
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English
Abstract
A series of aerodynamically driven model mounts for dynamic wind tunnel testing were designed, built and evaluated at Wichita State University. The mount proved to be very responsive, stable and capable of generating a wide variety of pitching motions. However, the response of an early variant of this mechanism displayed “stair-step” like behavior during slow pitching motions and damped oscillations at the end of rapid pitching motions. Numerical and experimental evaluations demonstrated that these undesired characteristics are minimized when the size of the control surface is increased and the inertia of the apparatus is reduced. In addition, this novel mechanism was utilized to demonstrate the type of valuable data that can be obtained. Force data for an oscillating NACA 0012 wing section is provided.
Topic
Citation
Mounir, I. and Miller, L., "Evaluation of an Aerodynamically Driven Model Mount for Dynamic Wind Tunnel Testing," SAE Technical Paper 965629, 1996, https://doi.org/10.4271/965629.Also In
References
- Ericson, L. E. “Separated Flow Mechanism in F-18 Wing Rock,” Journal of Aircraft 33 1 1996 81 86
- Walton, J. Katz, J. “Reduction of Wing Rock Amplitude using Leadin-Edge Vortex Manipulations,” AIAA Paper No. 92-0279 January 1992
- Michel, G. “Unsteady Aerodynamics Testing,” Aerospace Engineering 1993 7 10
- Lambourne, N. C. et al. “The Behavior of the Leading-Edge Vortices Over a Delta Wing Following a Sudden Change of Incidence,” NPL Aero Report 1294-ARC 81 056 1969
- Rediniotis, O. K. Klute, S. M. Telionis, D. P. “Pitching-Up Motions of Delta Wings,” AIAA Paper No 92-0278, 30th Aerospace Sciences Meeting & Exhibit Reno, NV January 6-9 1992
- Carr, L. Chandrasekhara, M. “Compressibility Effects on Dynamic Stall of Oscillating Airfoils,” Aerodynamics and Aeroacoustics of Rotorcraft , AGARD Conference proceedings No. 552 AGARD 1995 3.1 3.7
- Mounir, I. “Aerodynamically Driven Dynamic Delta Wing Testing,” AIAA Region V Student Conference Minneapolis 1994
- Mounir, I. Wayman, T. Miller, L. “Novel and Inexpensive Method of Performing Dynamic Wind Tunnel Model Testing,” SAE 951988 , SAE AEROTECH'95 Conference Los Angeles, California September 19 1995
- Mounir, I. “Evaluation of a Novel Experimental Apparatus for Dynamic Wind Tunnel Testing,” AIAA Paper No 97-0013, 35th Aerospace Sciences Meeting & Exhibit Reno, NV January 6-9 1997
- Hoak, D. E. USAF Stability and Control DATCOM Douglas Aircraft Company Inc. St. Louis 1960 4.2.1.1 5.3.1.1