Title :
On-line diagnostics of a self-contained flight actuator
Author :
Skormin, Victor A. ; Apone, Joseph ; Dunphy, Jhon J.
Author_Institution :
Binghampton Univ., NY, USA
fDate :
1/1/1994 12:00:00 AM
Abstract :
A mathematical model describing the dynamics of a self-contained flight control actuator is established. Typical failures of the actuator are defined in the space of the model parameters in the form of a failure pattern library. A diagnostic model of the actuator, intentionally sensitive to particular failures, is defined. A diagnostic procedure, featuring on-line parameter estimation of the diagnostic model, failure detection, and isolation, is proposed. A failure prediction procedure, utilizing trends exhibited by parameter estimates, is formulated. The results are verified by computer simulation
Keywords :
actuators; aerospace computer control; aircraft control; aircraft instrumentation; automatic testing; digital simulation; failure analysis; fault location; parameter estimation; computer simulation; diagnostic model; dynamics; failure detection; failure prediction; mathematical model; online diagnostics; online parameter estimation; parameter estimation; self-contained flight actuator; self-contained flight control actuator; Aerospace control; Aerospace electronics; Aerospace engineering; Electronic equipment testing; Hardware; Hydraulic actuators; Leak detection; Maximum likelihood detection; Parameter estimation; Redundancy; System testing;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
