Diagnostic de l’état mécanique de structures par analyse de vibrations

The first column vectors (POMs) of U, corresponding to the first non-zero elements of S, can represent the dynamic characteristics of the system. Each POM is a combination of

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The difference with classical finite-deformation nonlinear elasticity, however, is that the nonlinearity (arising from the O(r 3 ) term in the potential, or the term D) , in this

K EYWORDS : Structural Health Monitoring, Fatigue Monitoring, Ageing Management, Power Plants, AREVA Fatigue Concept (AFC), Fast Fatigue Evaluation (FFE), FAMOSi..

The data would origin from a large sensor network with different types of sensors (e.g. accelerometers and strain gauges) and include measurement noise, occasional outliers, normal

The obtained decomposition levels are used as input to the PCA method for fault identification using respectively, the Q-statistic, it is also called Squared Prediction Error (SPE),

The obtained decomposition levels are used as input to the PCA method for fault identification using respectively, the Q-statistic, it is also called Squared

In the initial stages of the present laboratory program there was little or no information on how units would perform under the conditions of test and CMHC had no basis for