The Assessment of Propeller Induced Fluctuating Pressure Influencing Hull Girder Vibration Analysis

전 선체 진동에 영향을 미치는 프로펠러 변동압력의 평가

The propeller induced forces acting on a hull are surface forces and bearing forces. The bearing forces are the forces acting directly on the propeller which are transferred to the hull through the propeller bearings. The surface forces are those which act by fluid pressure directly on the various hull surfaces. Because the surface force is main source to oscillate stern constructions and deckhouse, the estimation of surface force is very important to predict response of forced vibration of that. The estimation methods were statistical analysis method, theoretical analysis method and method through model test.