Subsonic flight test evaluation of a propulsion system parameter estimation process for the F100 engineAn adaptive-performance-seeking control system which optimizes the quasi-steady-state performance of the F-15 propulsion system is discussed. This paper presents flight- and ground-test evaluations of the propulsion system parameter-estimation process used by the performance seeking control system. The estimator consists of a compact propulsion system model and an extended Kalman filter. The extended Kalman filter estimates five engine component deviation parameters from measured inputs. The compact model uses measurements and Kalman-filter estimates as inputs to predict unmeasured propulsion parameters such as net propulsive force and fan stall margin. The ability to track trends and estimate absolute values of propulsion system parameters was demonstrated. For example, thrust stand results show a good correlation especially in trends between the performance seeking control estimated and measured thrust.
Document ID
19920066486
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Orme, John S. (NASA Hugh L. Dryden Flight Research Facility Edwards, CA, United States)
Gilyard, Glenn B. (NASA Flight Research Center Edwards, CA, United States)