Loading...
Please wait, while we are loading the content...
Similar Documents
Worst-case flutter margins from f/a-18 aircraft aeroelastic data
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Brenner, Marty Lind, Rick |
| Copyright Year | 1997 |
| Description | An approach for computing worst-case flutter margins has been formulated in a robust stability framework. Uncertainty operators are included with a linear model to describe modeling errors and flight variations. The structured singular value, micron, computes a stability margin which directly accounts for these uncertainties. This approach introduces a new method of computing flutter margins and an associated new parameter for describing these margins. The micron margins are robust margins which indicate worst-case stability estimates with respect to the defined uncertainty. Worst-case flutter margins are computed for the F/A-18 SRA using uncertainty sets generated by flight data analysis. The robust margins demonstrate flight conditions for flutter may lie closer to the flight envelope than previously estimated by p-k analysis. |
| File Size | 1001013 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19980036976 |
| Archival Resource Key | ark:/13960/t6g20xg79 |
| Language | English |
| Publisher Date | 1997-04-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Stability And Control Linear Systems Finite Element Method Unsteady Aerodynamics Fourier Analysis Margins Models Flutter Aircraft Design F-18 Aircraft Aerodynamic Stability 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 |
