关键词: 支线集装箱船, 有限元振动响应计算, 螺旋桨脉动压力模拟

Abstract: Serious ship vibration not only affects the accommodation comfort of the ship, but also leads to the fatigue damage of the hull structure and reduces the accuracy and the service life of ship equipment and instruments. Therefore, the ship vibration must be fully considered in the ship design stage. It mainly focuses on the simulation of the propeller-induced fluctuating pressure in the finite element calculation of the vibration response of a feeder container vessel. Three simulation methods are proposed for the propeller-induced fluctuating pressure according to the distribution of the fluctuating pressure measured in the propeller cavitation test and the fluctuating pressure induced by the propeller. A fast, efficient and accurate finite element method is finally selected for the simulation of the propeller-induced fluctuating pressure through the comparative study of the differences of the calculation results of the three simulation methods. The overall ship vibration response analysis of a feeder container vessel is conducted by applying the propeller-induced fluctuating pressure simulation method to predict and control the ship vibration. The vibration test of the full scale ship proves that the ship has good vibration performance.

Key words: feeder container vessel, finite element calculation of vibration response, propeller-induced fluctuating pressure simulation