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Flight and analytical investigations of a structural mode excitation system on the yf-12a airplane
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Murphy, R. C. Beranek, J. A. Davis, R. A. Goforth, E. A. |
| Copyright Year | 1987 |
| Description | A structural excitation system, using an oscillating canard vane to generate force, was mounted on the forebody of the YF-12A airplane. The canard vane was used to excite the airframe structural modes during flight in the subsonic, transonic, and supersonic regimes. Structural modal responses generated by the canard vane forces were measured at the flight test conditions by airframe-mounted accelerometers. Correlations of analytical and experimental aeroelastic results were made. Doublet lattice, steady state double lattice with uniform lag, Mach box, and piston theory all produced acceptable analytical aerodynamic results within the restrictions that apply to each. In general, the aerodynamic theory methods, carefully applied, were found to predict the dynamic behavior of the YF-12A aircraft adequately. |
| File Size | 28065526 |
| Page Count | 295 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870013252 |
| Archival Resource Key | ark:/13960/t6p032j8n |
| Language | English |
| Publisher Date | 1987-04-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Accelerometers Dynamic Structural Analysis Flight Tests Canard Configurations Modal Response Oscillations Systems Analysis Piston Theory Yf-12 Aircraft Lattices Mathematics Airframes Vanes Vibration Mode Excitation Aeroelasticity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
