大型邮轮结构崩溃试验模型设计研究

Research on Model Design of Structural Collapse Test of Large Cruise Ship

大型邮轮设计有多层庞大丰满的上层建筑,这样上层建筑与主船体的相互作用与普通船舶有所不同,导致邮轮结构的逐次崩溃特性也有所不同.为正确获得大型邮轮结构极限强度.文中针对邮轮在总纵弯曲作用下的崩溃特性和极限强度,将线性畸变相似理论和非线性相似方法相结合设计邮轮结构崩溃试验模型,在屈曲和屈服阶段模拟实船结构.将试验模型揭示的崩溃特性和极限强度预报至实船,与实船非线性有限元分析结果进行对比,验证了模型设计方法的合理性、可靠性.

Large cruise ships are designed with multi-layer huge and plump superstructures,so the interaction between the superstructure and the main hull is different from that of ordinary ships,and the successive collapse characteristics of the cruise ship structure are also different.In order to correctly obtain the ultimate strength of large cruise ship structure,the collapse characteristics and ultimate strength of cruise ship under longitudinal bending were studied.Combining the linear distortion similarity theory with the nonlinear similarity method,the collapse test model of cruise ship structure was designed to simulate the real ship structure in buckling and yielding stages.The collapse characteristics and ultimate strength revealed by the test model were predicted to the real ship,and compared with the nonlinear finite element analysis results of the real ship,the rationality and reliability of the model design method were verified.