This paper models and analyses the structural behaviour and radiated sound due to arbitrary force excitations of a cylindrical enclosure totally submerged in a heavy fluid. The enclosure consists of a cylindrical shell with internal bulkheads and ring stiffeners. The cylindrical shell is closed by circular plates. The structural responses of the shell and plates are calculated by solving the shell and plate equations of motion using a wave approach. The far-field radiated sound pressure from the shell and plates is then calculated by using the Helmholtz integral. The effect on the vibration and far-field sound pressure of the whole enclosure resulting from arbitrary force excitations is investigated. The influence of the bulkheads and ring stiffeners on the structure is discussed. Good agreement is obtained between the analytical results and results from numerical finite element / boundary element models.
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