In the nuclear industry, flow-induced vibrations of Steam Generator (SG) tubes are extensively studied for safety justifications and for optimizing the maintenance policies of these components. This paper presents a hybrid testing approach that reproduces the coupled fluid-elastic forces acting on the SG-tubes, by means of an active control system. By modal control strategy and precise pole placement, it is possible to recreate in dry conditions the dynamics of the tube in the turbulent secondary flow. Since the quality of pole placement strongly depends on the model accuracy, this paper also presents the identification method of the instrumented tube.

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