Marine Installation Manual 2021-08 6-17
6 Engine Dynamics
6.7 Hull vibration
X72DF
6.7 Hull vibration
The hull and accommodation area are susceptible to vibration caused by the pro-
peller, machinery and sea conditions. Controlling hull vibration from engine ex-
citation is achieved by a number of different means and may require the fitting of
second order mass moment compensators, lateral / longitudinal stays, electrical
H-type or X-type compensators and/or torsional vibration dampers.
Avoiding problematic hull vibrations cannot be achieved in isolation and re-
quires consideration and cooperation from propeller manufacturer, naval archi-
tect, shipyard, and engine builder.
WinGD can provide, on request, a simplified FE engine model to enable the
shipyard or design institute to predict the influence of the engine forces and mo-
ments on the ship hull.
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