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Communication Dans Un Congrès Année : 2016

Space-time FE-DIC for vibration measurement

Jean-Charles Passieux
Jean-Noël Périé
Robin Bouclier

Résumé

The aim of this study is to develop a new digital image correlation method for vibration measurement under harmonic excitation. The correlation problem is written as a minimization problem over the space-time domain. The unknown displacement is searched for as a product of space (modal shape) and time (harmonic) functions. It is shown that the mode shape (space unknown) is less sensitive to noise as time periodicity acts as a physical regularization. In addition, such a formulation allows to alleviate the tradeoff between framerate and image definition when using high speed camera, since it is possible to have a framerate lower than the analysed frequency.
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Dates et versions

hal-02049059 , version 1 (26-02-2019)

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  • HAL Id : hal-02049059 , version 1

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Jean-Charles Passieux, Jean-Noël Périé, Robin Bouclier. Space-time FE-DIC for vibration measurement. iDICs 2016 Conference and Workshop SEM Fall Conference, Philadelphia, PA, USA, 2016, Philadelphia, United States. ⟨hal-02049059⟩
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