随着国际货运需求的增加，大型集装箱船的吨位越来越大，为节约建造成本，在设计阶段有必要对集装箱船结构进行优化。本文以超大型集装箱船的板架结构作为研究对象，探索拓扑优化在箱船中的应用。在指定应力强度的约束条件、以结构重量最轻为优化目标下，对中横隔板的几何形状进行优化计算。此外，为了使优化后的结构拓扑形式便于生产、加工，约束条件还增加了轴对称条件。迭代优化后的结果表明，横隔板下部材料可以去除，一方面节约船体空间，有利于管道、电缆的铺设；另一方面结构重量（相对于原横隔板）减少了18%，而最大应力只增加1.5%。在箱船横隔板设计中，可以采用相同的方法进行拓扑优化以获得更好的拓扑形状。
With the study of typical main structure (shell and middle section structure), the application of structural topology optimization design method in the design is discussed. The shape of the transverse partition is optimized under the constraints and the lightest structure weight, in addition, in order to make the optimized structure topology form to facilitate production and processing, the constraints add symmetry conditions.The results after iterative optimization show that the lower material of the structure can be removed, on the one hand, save the hull space and facilitate the laying of pipeline and cable; on the other hand, the structure weight (relative to the original transverse partition) is reduced by 28%.It is shown that in the current transverse partition design, the same method for topological optimization design can be used to obtain excellent design forms.
2023,45(16): 27-31 收稿日期：2022-4-7
DOI：10.3404/j.issn.1672-7649.2023.16.006
分类号：U674.131
基金项目：国家自然科学基金资助项目（51508238）
作者简介：李海洲(1981-),男,研究员,研究方向为船舶工程结构研发
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