TY - JOUR
T1 - High performance linear-quadratic and H-infinity designs for a “supermaneuverable” aircraft
AU - Voulgaris, Petros
AU - Valavani, Lena
N1 - Funding Information:
This research was supported by the Air Force Office of Scientific Research, Eglin Air Force Base, under Grant F08635-87-K-0031, by the NASAAmes and Langley Research Centers under Grant NASA/NAG-2-297, and by a gift from the Boeing Corporation.
PY - 1991/1
Y1 - 1991/1
N2 - Recent efforts by the NASA Langley Research Center have focused on expanding the flight envelope of the F/A-18 aircraft. Of particular concern has been the low speed, high angle-of-attack regime over which the conventional aerodynamic controls of the F/A-18 lose their effectiveness. To address this problem, the F18 high alpha research vehicle (HARV) was developed. This aircraft is essentially a modified F/A-18 that possesses thrust vectoring capabilities and hence increased maneuverability in this flight regime. In this paper, the linear-quadratic-Gaussian/loop-transfer-recovery and H√, design methodologies are used to design high-performance controllers for the HARV at an operating point within the expanded envelope. In addition, this paper shows how the control redundancy of the HARV can be used to maintain nominal performance, as well as nominal stability, in situations where failures occur.
AB - Recent efforts by the NASA Langley Research Center have focused on expanding the flight envelope of the F/A-18 aircraft. Of particular concern has been the low speed, high angle-of-attack regime over which the conventional aerodynamic controls of the F/A-18 lose their effectiveness. To address this problem, the F18 high alpha research vehicle (HARV) was developed. This aircraft is essentially a modified F/A-18 that possesses thrust vectoring capabilities and hence increased maneuverability in this flight regime. In this paper, the linear-quadratic-Gaussian/loop-transfer-recovery and H√, design methodologies are used to design high-performance controllers for the HARV at an operating point within the expanded envelope. In addition, this paper shows how the control redundancy of the HARV can be used to maintain nominal performance, as well as nominal stability, in situations where failures occur.
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U2 - 10.2514/3.20617
DO - 10.2514/3.20617
M3 - Article
AN - SCOPUS:85003361447
SN - 0731-5090
VL - 14
SP - 157
EP - 165
JO - Journal of Guidance, Control, and Dynamics
JF - Journal of Guidance, Control, and Dynamics
IS - 1
ER -