Retrospective cost model refinement for aircraft fault signature detection

Author

Ming-Jui Yu ; McDonough, Kevin ; Bernstein, D.S. ; Kolmanovsky, Ilya

Author_Institution

Dept. of Aerosp. Eng., Univ. of Michigan, Ann Arbor, MI, USA

fYear

2014

fDate

4-6 June 2014

Firstpage

2486

Lastpage

2491

Abstract

Retrospective cost model refinement is applied to on-board identification of a linearized aircraft model, and it is shown that with altitude and airspeed measurements, the aircraft stability derivatives can be estimated. These estimates are then compared to the nominal values at the same flight condition. The comparison between identified and nominal stability derivatives provides a fault signature. We also describe a methodology for updating the flight envelope based on identified stability derivatives.

Keywords

aircraft control; fault diagnosis; stability; state estimation; aircraft fault signature detection; aircraft stability derivatives; airspeed measurements; altitude measurements; flight condition; flight envelope; identified stability derivatives; linearized aircraft model; nominal stability derivatives; onboard identification; retrospective cost model refinement; state-estimation techniques; Aircraft; Aircraft manufacture; Atmospheric modeling; Cost function; Data models; Drag; Stability analysis; Adaptive systems; Aerospace; Fault detection/accomodation;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference (ACC), 2014

Conference_Location

Portland, OR

ISSN

0743-1619

Print_ISBN

978-1-4799-3272-6

Type

conf

DOI

10.1109/ACC.2014.6858876

Filename

6858876