Abstract
Most studies analysing the instability of a cantilevered flexible plate in an axial flow are based on models assuming an inviscid flow and uniform properties for the plate. However, for some applications, such as biomechanical fluid-structure interaction (FSI) systems, these simplifications may not be valid due the scale of the problems and the non-uniform geometric and mechanical properties of the soft tissue. In this study, a parametric investigation is conducted to determine the conditions leading to flutter instability of a cantilevered flexible plate with a non-uniform thickness immersed in a two-dimensional viscous channel flow. It is shown that, depending on the mass ratio, the thinning and thickening of the plate free-end can stabilise or destabilise the FSI system and change the critical mode at instability onset.
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Acknowledgments
The authors gratefully acknowledge financial support of the WA State Center of Excellence in eMedicine (Project “Airway tomography instrumentation”). The work was supported by iVEC through the use of advanced computing resources located at iVEC@Murdoch.
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Cisonni, J., Lucey, A.D., Elliott, N.S.J. (2016). Stability of a Cantilevered Flexible Plate with Non-uniform Thickness in Viscous Channel Flow. In: Zhou, Y., Lucey, A., Liu, Y., Huang, L. (eds) Fluid-Structure-Sound Interactions and Control. Lecture Notes in Mechanical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48868-3_53
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DOI: https://doi.org/10.1007/978-3-662-48868-3_53
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