带筋板是目前常用的铝合金板材型式，在这类铝合金带筋板上布置的横向加强筋一般采用悬挂式结构，纵向加筋采用骑筋结构形式。悬挂式及骑筋结构在装配和焊接等方面具有工艺简便快捷的优势，但在结构有限元建模分析中，这2种结构形式会产生一定困难。若要用有限元模型详细描述悬挂式及骑筋结构需很细化的单元，对于铝合金带筋板构成的船体或舱段结构中数量庞大的悬挂式和骑筋结构，必然使得单元的数量剧增，会给结构分析带来困难。因此，需要一套大型铝合金带筋板结构中悬挂式结构及骑筋结构的简化建模方法和规则。本文应用结构分析软件MSC.Patran对典型带筋板结构进行有限元建模，通过计算分析研究提出悬挂式和骑筋结构的简化建模方法。该方法既能保证模型结构的合理性，又能满足精度要求，同时明显降低了模型的自由度规模，可为具有悬挂式和骑筋结构的铝合金带筋板船体结构有限元建模参考。
Compared with the traditional frame structure, the plate frame structure based on the aluminum alloy ribbed plate is generally called the suspension beam structure with the horizontal reinforcement and the riding rib structure with the longitudinal reinforcement. The suspended frame and the ribbed structure have obvious advantages in processing, assembly and welding processes, such as reducing the quality of the hull, controlling welding deformation, resisting seawater corrosion, and reflecting the ribbed plate structure Advantages, but due to its complex structure, the hull deck is a thin plate densely reinforced structure, which increases the workload of finite element modeling. However, there is no mature set of specifications and guidelines for simplified modeling. This paper uses the structural analysis software MSC.Patran to carry out finite element modeling. Through calculation analysis and comparison, the connection between suspension beams and riding ribs and other special structures and the deck are simplified, which not only ensures the rationality of the model structure, but also satisfies Accuracy is required and the processing of modeling workload is reduced. It is hoped that this article can serve as a reference for lightweight design and suspension frame analysis
2024,46(13): 29-33 收稿日期：2023-07-12
DOI：10.3404/j.issn.1672-7649.2024.13.006
分类号：U663.2
作者简介：成浩(1989-),男,硕士,工程师,研究方向为舰船总体
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