针对某敞口集装箱船在试航过程中出现的绑扎桥、桥翼、舵机间振动问题，采用有限元法进行振动分析。研究发现，改变绑扎桥下方支撑结构对绑扎桥固有频率的影响有限，适当削弱支撑结构可起到减振效果；封闭式桥楼的振动很难通过改变局部结构的方式控制，可通过增加主机横撑的方式解决；舵机间位于螺旋桨正上方，螺旋桨二阶及三阶激振力均会造成一定影响，设计时应考虑足够的频率储备。
In order to solve the vibration problem of the lashing bridge, bridge wing and steering gear room during the sea-trial voyage of an open top container vessel, the finite-element method is used in vibration analysis. Research has found that changing the support structure has limited effect on the natural frequency of the lashing bridge, and weakening the support structure appropriately can reduce the vibration. The vibration of the enclosed bridge is difficult to reduce by changing the local structure, but it can be solved by increase the top bracing of the main engine. The steering gear room is located directly above the propeller, and the second-order and third-order propeller excitation forces will have a certain effect. Sufficient frequency margin should be considered during design.
2025,47(2): 30-34 收稿日期：2024-3-25
DOI：10.3404/j.issn.1672-7649.2025.02.006
分类号：U661.44
作者简介：袁梦（1996 – ），男，硕士，工程师，研究方向为船舶结构设计
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