15th IFAC Symposium on System Identification, 2009
System Identification, Volume# 15 | Part# 1
Location: Saint-Malo Convention Center, , Saint-Malo France
National Organizing Committee Chair: Basseville, Michele
International Program Committee Chair: Vicino, Antonio;
Panciatici, Patrick
Conference Editor: Walter, Eric
ISBN: 978-3-902661-47-0
Start Date: 2009-07-06
End Date: 2009-07-08
| Paper Title | Authors | Updated | |
|---|---|---|---|
| Well-Posed Model Uncertainty Estimation by Design of Validation Experiments | Oomen, Tom; Bosgra, Okko H. | 2009-07-06 |
|
|
Authors: Oomen, Tom; Bosgra, Okko H.
Abstract: In deterministic model validation approaches, model errors can be attributed to both disturbances and model uncertainty, leading to an ill-posed problem formulation. The aim of this paper is to remedy the ill-posedness in model validation for robust control. A two-stage procedure is developed, where first an accurate, nonparametric, deterministic disturbance model is estimated from data, followed by the enforcement of averaging properties through an appropriate periodic experiment design. The proposed deterministic approach results in an asymptotically correctly estimated model uncertainty and is illustrated in a simulation example.
Keywords: Model Validation; Error Quantification; Input and Excitation Design
Identifier: 10.3182/20090706-3-FR-2004.00199
Conference: 15th IFAC Symposium on System Identification, 2009
Location: Saint-Malo Convention Center, Saint-Malo, France
Start Date: Mon Jul 06 2009 - End Date: Wed Jul 08 2009
|
|||
| Width Gear Spall Estimation Using Maximum Kurtosis Property | Youssef, Wedian; Guillet, Francois; Elbadaoui, Mohamed | 2009-07-06 |
|
|
Authors: Youssef, Wedian; Guillet, Francois; Elbadaoui, Mohamed
Abstract: This paper deals with diagnosis and monitoring of gears. Classic methods aim to detect faults in early stage. In this work we propose a method which enables us not just to detect a spall but also its width in order to determine the remaining life of the defective element. This method is based on higher order statistic (HOS) to identify the mechanical structure. We research the optimal filter which corresponds to the transmission path. It is supposed an ARMA (p,q) non minimal phase filter. We identified it by using maximum kurtosis property supposed to be adapted to the impulsive nature of the gear tooth spall effect. The experimental results that will be presented validate the performance of these filtering techniques in detecting spalls in gears.
Keywords: Fault Detection and Diagnosis; Blind Estimation; Others
Identifier: 10.3182/20090706-3-FR-2004.00285
Conference: 15th IFAC Symposium on System Identification, 2009
Location: Saint-Malo Convention Center, Saint-Malo, France
Start Date: Mon Jul 06 2009 - End Date: Wed Jul 08 2009
|
|||