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A comparison of time-optimal interception trajectories for the f-8 and f-15
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Pettengill, James B. Calise, Anthony J. |
| Copyright Year | 1990 |
| Description | The simulation results of a real time control algorithm for onboard computation of time-optimal intercept trajectories for the F-8 and F-15 aircraft are given. Due to the inherent aerodynamic and propulsion differences in the aircraft, there are major differences in their optimal trajectories. The significant difference in the two aircrafts are their flight envelopes. The F-8's optimal cruise velocity is thrust limited, while the F-15's optimal cruise velocity is at the intersection of the Mach and dynamic pressure constraint boundaries. This inherent difference necessitated the development of a proportional thrust controller for use as the F-15 approaches it's optimal cruise energy. Documented here is the application of singular perturbation theory to the trajectory optimization problem, along with a summary of the control algorithms. Numerical results for the two aircraft are compared to illustrate the performance of the minimum time algorithm, and to compute the resulting flight paths. |
| File Size | 744382 |
| Page Count | 30 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900012437 |
| Archival Resource Key | ark:/13960/t3712zp7t |
| Language | English |
| Publisher Date | 1990-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Controllers Airborne/spaceborne Computers Flight Paths Trajectories Computerized Simulation Thrust Control F-15 Aircraft Velocity Flight Envelopes Optimization Lift Real Time Operation Algorithms F-8 Aircraft Interception Flight Mechanics 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 |
