Effect of driving forces property on characteristics of sound radiation from finite double cylindrical shell;

The primary source of structure-borne vibration, self-noise and radiation noise of warship is vibro-exciting force acting on the machine base in hull.

It is of much importance to estimate exciting forces acting on ship hull from machinery in ships, for the prediction of ship structural vibration,two indirect force estimation approaches are discussed in this paper.

Simple harmonic analysis was carried out for the excitation torque acting on a single cylinder both under normal combustion and when facing the flameout of a cylinder.