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X-31 aerodynamic characteristics determined from flight data
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kokolios, Alex |
| Copyright Year | 1993 |
| Description | The lateral aerodynamic characteristics of the X-31 were determined at angles of attack ranging from 20 to 45 deg. Estimates of the lateral stability and control parameters were obtained by applying two parameter estimation techniques, linear regression, and the extended Kalman filter to flight test data. An attempt to apply maximum likelihood to extract parameters from the flight data was also made but failed for the reasons presented. An overview of the System Identification process is given. The overview includes a listing of the more important properties of all three estimation techniques that were applied to the data. A comparison is given of results obtained from flight test data and wind tunnel data for four important lateral parameters. Finally, future research to be conducted in this area is discussed. |
| File Size | 460605 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940020627 |
| Archival Resource Key | ark:/13960/t6159hc6x |
| Language | English |
| Publisher Date | 1993-12-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Flight Tests X-31 Aircraft Estimating Lateral Stability Aircraft Control Research Aircraft Wind Tunnel Tests Extraction Maximum Likelihood Estimates System Identification Angle of Attack Kalman Filters Aerodynamic Characteristics Lateral Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
