On-line diagnostics of a self-contained flight actuator

Author

Skormin, Victor A. ; Apone, Joseph ; Dunphy, Jhon J.

Author_Institution

Binghampton Univ., NY, USA

Volume

30

Issue

1

fYear

1994

fDate

1/1/1994 12:00:00 AM

Firstpage

186

Lastpage

196

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;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.250419

Filename

250419