Accession Number : ADA258975


Title :   Strategies for Optimal Control Design of Normal Acceleration Command Following on the F-16


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING


Personal Author(s) : Baird, James C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a258975.pdf


Report Date : Dec 1992


Pagination or Media Count : 197


Abstract : Weight shapes and locations are investigated for H2, H infinity, and the general mixed H2/H infinity optimization methodologies. The design model is normal acceleration command following for the F-16 (SISO) at Mach 0.6 and Sea Level, which yields a nonminimum phase and unstable plant. H2 design types include LQG, LQG/Sensitivity, and LQG/Tracking. Robustness and tracking are the objectives of the central H infinity process. Both H infinity optimal and suboptimal controllers are examined, with the suboptimal controller shown as the practical choice for this plant. The mixed H2/H infinity setup allows the tradeoff between H2 tracking and noise rejection, and H infinity robustness. Results of weight choices on all designs are discussed, with the mixed H2/H infinity design being favored.


Descriptors :   *FLIGHT CONTROL SYSTEMS , *ACCELERATION , CONTROL , SHAPE , SENSITIVITY , WEIGHT , JET FIGHTERS , OCEANS , SEA LEVEL , COMPENSATORS , REJECTION , SELECTION , NOISE , YIELD , PHASE , TRACKING , MODELS , OPTIMIZATION


Subject Categories : Flight Control and Instrumentation


Distribution Statement : APPROVED FOR PUBLIC RELEASE