Nassim Boudaoud

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RÉSUMÉ. Dans cet article nous présentons un système de diagnostic adaptatif en ligne basé sur la reconnaissance des formes. Ce système intrègre une boucle de supervision qui permet la détection et le diagnotic de dérives lentes et de nouveaux modes de fonctionnement en temps réel. Un mode de fonctionnement est supposé stationnaire, une dérive lente est(More)
This paper gives a description of an adaptive on-line diagnosis system for the detection of slow varying changes in dynamical systems using a fuzzy pattern recognition approach. This contribution is an extention of a previous paper (Boudaoud et al. 1996), we have included in the diagnosis and supervision scheme a fusion module to combine the decisions of(More)
In order to optimize the performance of a diesel engine subject to legislative constraints on pollutant emissions, it is necessary to improve their design, and to identify how design parameters affect engine behaviours. One specificity of this work is that it does not exist a physical model of engine behaviour under all possible operational conditions. A(More)
This paper presents a joint use of the T2 chart and Total Inertial Tolerancing for process control. Here, we will show an application of these approaches in the case of the machining of mechanical workpieces using a cutting tool. When a cutting tool in machining impacts different manufactured dimensions of the workpiece, there is a correlation between these(More)
Gaëtan BLONDET, Nassim BOUDAOUD Sorbonne universités, Université de Technologie de Compiègne, Roberval UMR UTC/CNRS 7337, Centre Pierre Guillaumat, CS 60319 60203 Compiègne cedex, France, Julien LE DUIGOU Sorbonne universités, Université de Technologie de Compiègne, Roberval UMR UTC/CNRS 7337, Centre Pierre(More)
Once a design concept chosen and parameterized, the embodiment design stage consists in choosing materials and dimensions to ensure a “good matching” with the expected performances. In this context of the first stages of a parametric design, several approaches exist which correspond to slightly different complexities and issues, which are more or less easy(More)
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