A hybrid approach for simulating fluid loading effects on structures using experimental modal analysis and the boundary element method
MR Shepherd, JB Fahnline, TP Dare… - The Journal of the …, 2015 - pubs.aip.org
Many structural acoustics problems involve a vibrating structure in a heavy fluid. However,
obtaining fluid-loaded natural frequencies and damping experimentally can be difficult and
expensive. This paper presents a hybrid experimental-numerical approach to determine the
heavy-fluid-loaded resonance frequencies and damping of a structure from in-air
measurements. The approach combines in-air experimentally obtained mode shapes with
simulated in-water acoustic resistance and reactance matrices computed using boundary …
obtaining fluid-loaded natural frequencies and damping experimentally can be difficult and
expensive. This paper presents a hybrid experimental-numerical approach to determine the
heavy-fluid-loaded resonance frequencies and damping of a structure from in-air
measurements. The approach combines in-air experimentally obtained mode shapes with
simulated in-water acoustic resistance and reactance matrices computed using boundary …
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