Abstract
In many situations, the vibrating structures are in contact with a fluid (fluid around the hulls of a boats, reservoirs, etc), but the dynamic behaviour of the structure can be significantly modified by the presence of the fluid. Traditionally, the study of mechanical systems fluid-structure interaction is based on a deterministic approach where all the parameters used in the model are a fixed value. But it suffices to having conducted a few experimentations to realize that the limitations of such modeling. This work proposes a numerical stochastic method of the modal synthesis extended to reliability study, based on FORM and SORM approaches, for solving the large vibroacoustic problems. The method developed couples the dynamic substructuring method of type Craig and Bampton and the acoustic subdomains method based on a pressure formulation. The numerical method used takes into account the uncertainties of the input parameters of the two domains. The application of the proposed method is performed on a boat propeller immersed. This numerical study compared to an experimental study we can validate the calculation process.
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Mansouri, M., Radi, B., El Hami, A. (2013). Vibroacoustic Analysis of Boat Propeller Using Reliability Techniques. In: Haddar, M., Romdhane, L., Louati, J., Ben Amara, A. (eds) Design and Modeling of Mechanical Systems. Lecture Notes in Mechanical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-37143-1_38
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DOI: https://doi.org/10.1007/978-3-642-37143-1_38
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-37142-4
Online ISBN: 978-3-642-37143-1
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