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              <p>Parmi les technologies de contrôle vibratoire passif de structures, le patch d’élastomère contraint ou Constrained Layer Damping (CLD) est une technologie dont la robustesse, l’efficacité et l’encombrement réduit ont été démontrés expérimentalement et numériquement. Une méthode de calcul de la réponse dynamique d’un aubage de soufflante de turbomoteur équipée de cette technologie est présentée. Cette méthode est composée d’un calcul statique non-linéaire géométrique sous chargement centrifuge utilisant une loi hyperélastique pour rendre compte du comportement non-linéaire de l’élastomère composant le patch. Un calcul de réponse harmonique linéaire est ensuite réalisé autour de l’état d’équilibre statique en prenant en compte la dépendance fréquentielle des propriétés de l’élastomère. Ce modèle est finalement confronté à des résultats expérimentaux et l’influence du patch sur la dynamique de la structure est mise en évidence</p>
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