船舶尾部是船上有害振动的集中发生区域，其振动响应历来是关注重点。本文采用模型试验与有限元计算相结合的方法，研究尾部结构在外界激励作用下的振动响应，通过对比试验结果和有限元计算结果，考察网格划分对计算结果的影响，分析直接积分法与模态叠加法的准确性，并对模态叠加法中截断频率的选取进行讨论，总结船舶结构振动响应计算中的关键和要点。
The ship stern where harmful vibration usually takes place has always been focus of researchers. This paper studies the vibration response of stern structure with model test and finite element (FE) calculation. By comparing experimental results with numerical results, the influence of FE mesh size is investigated. Meanwhile, the accuracy of direct integration method and mode superposition method is analyzed, and the selection of truncation frequency is discussed. Some key points in vibration response calculation of ship structures are summarized.
2022,44(20): 67-70 收稿日期：2021-10-21
DOI：10.3404/j.issn.1672-7649.2022.20.013
分类号：U663
作者简介：叶星宏(1996-)，男，硕士研究生，研究方向为船体结构与振动
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