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An enhanced LPV-model based identification approach of oscillatory failure cases

Varga, Andreas and Ossmann, Daniel (2012) An enhanced LPV-model based identification approach of oscillatory failure cases. IFAC SAFEPROCESS 2012, 29-31 August 2012, Mexico City, Mexico.

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Abstract

The reliable early detection of oscillatory failure cases (OFC) for modern fly-by-wire controlled civil aircraft is an important aspect in optimizing the structural design objectives for reducing the environmental footprint of the aircraft. We propose a complete methodology for the design of a model based fault detection and diagnosis (FDD) system, which allows the reliable early detection of OFC characterized by low amplitude oscillations in a given frequency range. The main factors for the achieved enhanced performance are: the accurate modelling of the surface actuator via linear parameter-varying (LPV) models, an improved oscillation detection by employing the recursive discrete Fourier transform, and the integrated tuning of the free parameters of the FDD system using multi-objective optimization techniques.

Document Type:Conference or Workshop Item (Paper)
Title:An enhanced LPV-model based identification approach of oscillatory failure cases
Authors:
AuthorsInstitution or Email of Authors
Varga, Andreasandreas.varga@dlr.de
Ossmann, Danieldaniel.ossmann@dlr.de
Date:2012
Status:Published
Keywords:Fault detection, fault identification, analytical redundancy, oscillatory failure case
Event Title:IFAC SAFEPROCESS 2012
Event Location:Mexico City, Mexico
Event Type:international Conference
Event Dates:29-31 August 2012
Organizer:IFAC
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems & Cabin
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics > System Dynamics and Control (former Control Design Engineering)
Deposited By: Dr.-Ing. Andreas Varga
Deposited On:25 Sep 2012 14:19
Last Modified:12 Dec 2013 21:46

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