大型邮轮泳池结构开口补强优化设计方法

杜兴科; 刘斌; 吴卫国

doi:10.19693/j.issn.1673-3185.02664

大型邮轮泳池结构开口补强优化设计方法

Optimization design method of opening reinforcement of swimming pool structure of large cruise ship

摘要

摘要:
目的大型邮轮泳池结构大开口降低了甲板结构的承载能力，补强是提高开口结构强度的有效手段，但补强的形式多样对开口结构优化设计提出了挑战。为此，
方法运用变密度拓扑优化方法对泳池开口补强板进行优化，以获得一种新型开口补强方式，并进一步对结构开展尺寸优化，获得更为合理的板厚分布，从而达到最好的减重效果。
结果优化结构与原型结构相比，极限承载力提高了1.1%，最大应力下降了3.3%，减重7.0%。
结论所提优化设计方法可为邮轮甲板开口结构提供一种补强设计手段。

Abstract:
Objective A large opening on the swimming pool structure of a large cruise ship reduces the carrying capacity of the deck structure. The opening reinforcement is an effective approach to improve the structural strength. However, various forms of reinforcements pose a challenge to the optimal design of opening structures.
Methods A variable density topology optimization method is used to optimize the opening reinforcement of a swimming pool, and a new form of opening reinforcement is obtained. Next, a size optimization method is used to obtain a more reasonable distribution of plate thicknesses, thereby achieving better weight reduction.
Results As the results show, compared with the prototype structure, the optimized structure has an increased ultimate bearing capacity of 1.1%, maximum stress reduction of 3.3% and weight reduction of 7.0%.
Conclusion The proposed optimization design method can provide a reinforcement approach for designing the deck opening structures of cruise ships.

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