船舱底座结构失稳，会威胁大型集装箱船舱的稳定性，因此需要加强与改进大型集装箱船舱底座结构。依据大型集装箱船舱底座结构底座基本信息，利用Ansys有限元软件构建大型集装箱船舱底座结构的有限元模型。通过结构响应的显示函数计算大型集装箱船舱底座结构构件变量的灵敏度，考虑构件变量灵敏度，并以重力荷载下底座柔度最低和低阶固有频率最大为目标，通过折衷规则法和平均频率法构建目标函数，通过添加支架，改变构件变量参数实现加强改进大型集装箱船舱底座结构，并且使用有限元软件验证加强改进效果。结果显示，加强改进大型集装箱船舱底座结构后，该结构柔度下降刚度增加，稳定性更强，低阶固有频率得到提升，大型集装箱船舱底座结构更加稳定。
The instability of the cabin base structure will threaten the stability of the large container hold, so it is necessary to strengthen and improve the structure of the large container hold base. According to the basic information of the structure of the base of the large container hold, the finite element model of the base structure of the large container hold is constructed by using Ansys finite element software. The sensitivity of structural component variables of large container hold base is calculated by the display function of structural response. The sensitivity of component variables is considered, and the minimum compliance of base under gravity load and the maximum natural frequency of low order are taken as the objectives. The objective function is constructed by compromise rule method and average frequency method. The structure of large container hold base is improved by changing the variable parameters of components, and the improvement effect is verified by finite element software. The finite element results show that after strengthening and improving the large container cabin base structure, the structure's compliance decreases, stiffness increases, stability is stronger, the low-order natural frequency is improved, and the large container cabin base structure is more stable.
2022,44(21): 186-189 收稿日期：2022-06-11
DOI：10.3404/j.issn.1672-7649.2022.21.039
分类号：TU674.95
基金项目：江苏省教育科学“十四五”规划课题（D/2021/03/21）；江苏高校哲学社会科学研究基金项目（2020SJA0736）；江苏高校“青蓝工程”资助；江苏海事智慧航运协同创新基地项目
作者简介：宋春雪(1982-),女,硕士,讲师,主要研究方向为港口绩效测度与航运服务创新
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