大型邮轮甲板舱室肘板屈曲行为及强度分析

Buckling Behavior and Strength Analysis of Brackets in Large Cruise Ship Deck Compartments

在满足结构强度的基础上,以生活区舱室肘板节点结构为研究对象,采用非线性有限元数值仿真与极限承载力试验相结合的方法,分析4种肘板类型屈曲破坏形式以及肘板的应力分布情况。分析结果显示:节点结构非线性有限元数值仿真结果与试验结果一致,肘板结构形式导致屈曲破坏发生的位置和结构极限承载能力发生变化,选取最佳的舱室肘板形式有利于提高结构的稳定性。基于轻量化需求,对肘板极限强度的影响参数进行相应的数值模拟分析,所得结果可为大型邮轮结构提供实用的设计建议。

Based on meeting the structural strength,four types of brackets buckling damage forms and the stress distribution of ribs and rib plates are analyzed by combining nonlinear finite element numerical simulation and ultimate bearing capacity test with the node structure of brackets of accommodation compartments in the living area as the research object.The analysis results show that the nonlinear finite element numerical simulation results of the node structure are consistent with the test,and the bracket structural forms lead to the change of the location where the buckling damage occurs and the ultimate bearing capacity of the structure,and that the selection of optimal cabin bracket forms is beneficial to the improvement of the structure's stability.Based on the demand for light weighting,the corresponding numerical simulation analysis of the parameters affecting the ultimate strength of the bracket is carried out,and the results obtained provide practical design suggestions for large cruise ship structures.