In Flight Investigation Of A Rotating Cylinder Based Structural Excitation System For Flutter Testing PDF Download
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Author | : Lura Vernon |
Publisher | : |
Total Pages | : 28 |
Release | : 1993 |
Genre | : Aeroelasticity |
ISBN | : |
Download In-flight Investigation of a Rotating Cylinder-based Structural Excitation System for Flutter Testing Book in PDF, ePub and Kindle
Author | : National Aeronautics and Space Adm Nasa |
Publisher | : |
Total Pages | : 28 |
Release | : 2018-10-22 |
Genre | : |
ISBN | : 9781729028100 |
Download In-Flight Investigation of a Rotating Cylinder-Based Structural Excitation System for Flutter Testing Book in PDF, ePub and Kindle
A research excitation system was test flown at the NASA Dryden Flight Research Facility on the two-seat F-16XL aircraft. The excitation system is a wingtip-mounted vane with a rotating slotted cylinder at the trailing edge. As the cylinder rotates during flight, the flow is alternately deflected upward and downward through the slot, resulting in a periodic lift force at twice the cylinder's rotational frequency. Flight testing was conducted to determine the excitation system's effectiveness in the subsonic, transonic, and supersonic flight regimes. Primary research objectives were to determine the system's ability to develop adequate force levels to excite the aircraft's structure and to determine the frequency range over which the system could excite structural modes of the aircraft. In addition, studies were conducted to determine optimal excitation parameters, such as sweep duration, sweep type, and energy levels. The results from the exciter were compared with results from atmospheric turbulence excitation at the same flight conditions. The comparison indicated that the vane with a rotating slotted cylinder provides superior results. The results from the forced excitation were of higher quality and had less variation than the results from atmospheric turbulence. The forced excitation data also invariably yielded higher structural damping values than those from the atmospheric turbulence data. Vernon, Lura Armstrong Flight Research Center RTOP 505-63-50...
Author | : Martin J. Brenner |
Publisher | : |
Total Pages | : 34 |
Release | : 1997 |
Genre | : Aeroelasticity |
ISBN | : |
Download Overview of Recent Flight Flutter Testing Research at NASA Dryden Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 538 |
Release | : 1991 |
Genre | : Aeronautics |
ISBN | : |
Download Aeronautical Engineering Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 728 |
Release | : 1994 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : |
Release | : 1994 |
Genre | : Government publications |
ISBN | : |
Download Monthly Catalog of United States Government Publications Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 666 |
Release | : 1994 |
Genre | : Science |
ISBN | : |
Download Government Reports Announcements & Index Book in PDF, ePub and Kindle
Author | : David F. Fisher |
Publisher | : |
Total Pages | : 526 |
Release | : 1999 |
Genre | : Transportation |
ISBN | : |
Download Fifty Years of Flight Research Book in PDF, ePub and Kindle
A bibliography of Technical Reports from Dryden Research Center, 1946-1996. Dryden was a National Advisory Committee for Aeronautics (NACA) facility from to 1946-1958, when NACA became NASA (National Aeronautics and Space Administration). This bibliography encompasses both NACA and NASA publications. Illustrated with diagrams and photos. Black and white version.
Author | : |
Publisher | : |
Total Pages | : 66 |
Release | : 1993 |
Genre | : |
ISBN | : |
Download Ground Vibration and Flight Flutter Tests of the Single-seat F-16XL Aircraft with a Modified Wing Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 872 |
Release | : 1994-08 |
Genre | : Government publications |
ISBN | : |
Download Monthly Catalogue, United States Public Documents Book in PDF, ePub and Kindle