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Identification of low order equivalent system models from flight test data
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Morelli, Eugene A. |
| Copyright Year | 2000 |
| Description | Identification of low order equivalent system dynamic models from flight test data was studied. Inputs were pilot control deflections, and outputs were aircraft responses, so the models characterized the total aircraft response including bare airframe and flight control system. Theoretical investigations were conducted and related to results found in the literature. Low order equivalent system modeling techniques using output error and equation error parameter estimation in the frequency domain were developed and validated on simulation data. It was found that some common difficulties encountered in identifying closed loop low order equivalent system models from flight test data could be overcome using the developed techniques. Implications for data requirements and experiment design were discussed. The developed methods were demonstrated using realistic simulation cases, then applied to closed loop flight test data from the NASA F-18 High Alpha Research Vehicle. |
| File Size | 2599063 |
| File Format | |
| Language | English |
| Publisher Date | 2000-08-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Stability And Control Flight Tests Flight Characteristics Error Analysis Deflection Aircraft Performance Data Processing Experiment Design Dynamic Models System Identification Feedback Control Flight Control 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 |
