Active Robust Fault Estimation on a Composite Beam with Integrated Piezoceramics

Nazih Mechbal (1, 2) , Michel Vergé (1)

1 LMSP - Laboratoire de Mécanique des Systèmes et des Procédés
2 PIMM - Laboratoire Procédés et Ingénierie en Mécanique et Matériaux

The problem addressed here is the application of model-based fault detection algorithm to active control of flexible structures. The modeling of mechanical structures with the finite element (FE) method leads to high order models which must be reduced. This step introduces important uncertainties which make necessary the use of robust fault detection and diagnosis (RFDD) algorithms. Here, we propose to apply a RFDD method using the H2 and H∞ polynomial estimation to estimate the input fault signal. To illustrate the efficiency of this method, it is applied to a composite beam with piezoelectric patches as sensors and actuators.

Mots clés: Active control; Fault estimation; Robustness; Finite Elements; H2/H∞ polynomial estimation; Piezoceramics

Domaines: Mécanique [physics.med-ph]

Nazih Mechbal, Michel Vergé. Active Robust Fault Estimation on a Composite Beam with Integrated Piezoceramics. 6th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes (SAFEPROCESS'06 ), 2006, Pekin, China. ⟨10.3182/20060829-4-CN-2909.00198⟩. ⟨hal-00292240⟩