本文提出了适用于研究船舶耦合振动的部件模态综合法。通过用这一方法对16000吨煤矿船总振动的实例计算,剖析了子结构之间的耦合振动及其在总振动中所起的不同作用,从而为船舶尾部、机仓双层底、上层建筑等局部结构振动与船体梁耦合振动的计算提供了理论依据。本文计算结果与实测值比较误差1.2％。 This article proposes a modal synthesis method suitable for studying ship coupled vibration. By using this method to calculate the total vibration of a 16,000-ton coal mine vessel, the coupled vibrations between the sub-structures and their different roles in the overall vibration are analyzed to make it a ship’s tail, machine double bottom, and superstructure. The calculation of the coupled vibration of the local structure and the hull girder provides a theoretical basis. The error between the calculated results and the measured values ​​in this paper is 1.2%.