Abstract
Aiming at the problem of high requirement of hospital ship for hull vibration, this paper takes a hospital ship as an example to analyse its vibration characteristic. The three-dimensional finite element model of hospital ship is established. Take the pulsating force of propeller as the exciting force, the vibration response of the whole ship is calculated by acoustic-structure coupling method. Refer to related standard of ISO6954-2000(E), the numerical result shows that the vibration of some region of stern is over standard. An optimization scheme is proposed for the area whose vibration over standard, the result suggests that the whole ship vibration meets the standard after optimization design. This research provides a reference for design and construction of hospital ship.
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