A two-plate rib-stiffened solid panel can achieve near-perfect transmission of sound from water to air at a frequency set by the mass of the air-side plate alone.
This introduces the mass degree of freedom, u, its displacement in the x−direction, and Trib = 1 2 mω2u2, U rib = 1 2 2κ u − w−(0) 2 + u − w+(0) 2
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Total acoustic transmission between fluids using a solid material with emphasis on the air-water interface
A two-plate rib-stiffened solid panel can achieve near-perfect transmission of sound from water to air at a frequency set by the mass of the air-side plate alone.