Abstract
ADINA is employed to solve the lowest natural frequencies and corresponding mode shapes of a plate and turbine blade when submerged in water. Finite element solution parameters such as integration order of elements, mass matrix, flow around edges, and other modelling considerations are reported. The performance of the present solution algorithms and comparisons with experimentally obtained results are also presented. The experience reported can be useful for the analysis of problems involving an elastic structure immersed in an acoustic fluid (exterior problems) and problems involving an acoustic fluid within elastic structures (interior problems).
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