The present work investigates the effect on the flow-induced vibrations of the lay-up sequence of composite laminated axisymmetric structures, using an hybrid approach based on a wave finite element and a transfer matrix method. The structural vibrations, under deterministic distributed pressure loads, diffuse acoustic field and turbulent boundary layer excitations, are analysed and compared. A multi-scale approach is used for the dynamic analysis of fi nite structures, using an elementary periodic subsystem. Different flow regimes and shell curvatures are analysed and the computational efficiency is also discussed.
An investigation on the vibrations of laminated shells under aeroacoustic loads using a WFE approach / Errico, F.; Franco, F.; Ichchou, M.; De Rosa, S.; Petrone, G.. - In: ADVANCES IN AIRCRAFT AND SPACECRAFT SCIENCE. - ISSN 2287-528X. - 6:(2019), pp. 463-479. [10.12989/aas.2019.6.6.463]
An investigation on the vibrations of laminated shells under aeroacoustic loads using a WFE approach
F. Franco;S. De Rosa;G. Petrone
2019
Abstract
The present work investigates the effect on the flow-induced vibrations of the lay-up sequence of composite laminated axisymmetric structures, using an hybrid approach based on a wave finite element and a transfer matrix method. The structural vibrations, under deterministic distributed pressure loads, diffuse acoustic field and turbulent boundary layer excitations, are analysed and compared. A multi-scale approach is used for the dynamic analysis of fi nite structures, using an elementary periodic subsystem. Different flow regimes and shell curvatures are analysed and the computational efficiency is also discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
