Section: Application Domains

Computer Experiments and Reliability

Since several years, select has collaborations with EDF-DER Maintenance des Risques Industriels group. An important theme concerns the resolution of inverse problems using simulation tools to analyze incertainty in highly complex physical systems.

The other major theme concerns probabilistic modeling in fatigue analysis in the context of a research collaboration with SAFRAN an high-technology group (Aerospace propulsion, Aicraft equipment, Defense Security, Communications).

Moreover, a collaboration has started with Dassault Aviation on modal analysis of mechanical structures, which aims at identifying the vibration behavior of structures under dynamic excitations. From algorithmic view point, modal analysis amounts to estimation in parametric models on the basis of measured excitations and structural responses data. As it appears from literature and existing implementations, the model selection problem attached to this estimation is currently treated by a rather heavy and very heuristic proced ure. The model selection via penalisation tools are intended to be tested on this model selection problem.