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Application of nonlinear feedback control theory to supermaneuverable aircraft
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Garrard, William L. Enns, Dale F. |
| Copyright Year | 1991 |
| Description | Controlled flight at extremely high angles of attack, far exceeding the stall angle, and/or at high angular rates is sometimes referred to as supermaneuvering flight. The objective was to examine methods for design of control laws for aircraft performing supermaneuvers. Since the equations which govern the motion of aircraft during supermaneuvers are nonlinear, this study concentrated on nonlinear control law design procedures. The two nonlinear techniques considered were Nonlinear Quadratic Regulator (NLQR) theory and nonlinear dynamic inversion. A conventional gain scheduled proportional plus integral (P + I) controller was also developed to serve as a baseline design typical of current control laws used in aircraft. A mathematical model of a generic supermaneuverable aircraft was developed from data obtained from the literature. A detailed computer simulation of the aircraft was also developed. This simulation allowed the flying of proposed supermaneuvers and was used to evaluate the performance of the control law designs and to generate linearized models of the aircraft at different flight conditions. |
| File Size | 516071 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920016405 |
| Archival Resource Key | ark:/13960/t7dr7rq5m |
| Language | English |
| Publisher Date | 1991-12-21 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Stability And Control Controllers Nonlinear Feedback Regulators Flight Conditions Inversions Computerized Simulation Feedback Control Flight Control Aircraft Control Aircraft Maneuvers Controllability Mathematical Models Angular Velocity Control Theory Angle of Attack Linear Quadratic Regulator 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 |
