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Structural dynamics and fluid-structure interaction

The fluid-structure interaction of flexible or rigid structures is a topic where different discipline – fluid dynamics, analysis of structures, control-systems and so on - converge to provide a new point of view that is not a simple combination of the different contributions. In the naval architecture as well as in the aeronautical field, the complex nature of the phenomena or simply the coupling between fluid and structure has motivated the tailoring of theories or computational schemes to be able to exchange information to each other or even the definition of models embedding both flow and solid description.
This approach has also an experimental counterpart, that can be labelled as Experimental Fluid-Structure Dynamics (EFSI). Recent advances in measurement techniques and fabrication technology has broaden the capability to design experimental set-ups where scaled models can reproduce, even if partially, the full-scale elastic behaviour. These new capabilities has met the request of marine and maritime engineering, where  there is a renovate effort to provide additional insights on the structural behaviour of floating structures as long as new challenging constructions and vehicles appear.
On the specific side of structural dynamics, three objectives can be generally stated. They are response determination, load evaluation and structural identification, supposing to move ideally from direct to inverse problems. In the case of the marine and maritime engineering, the above tasks become challenging research  topics due to the nature of systems under investigations, that are huge, uncertain and, as pointed out before, embedded or even nonlinearly coupled with the water environment.
Apart from scientific challenges, it has to be underlined from the solution of these problems often comes opportunity to increase the comfort and safety levels on-board and in the surrounding marine environment.

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