【作者】 缪好； 焦鹏； 常群； 聂宝鑫； 丁之桓； 陈志平；

【Author】 MIAO Hao;JIAO Peng;CHANG Qun;NIE Baoxing;DIN Zhihuan;CHEN Zhiping;Institute of Advanced Equipment,College of Energy Engineering,Zhejiang University;

【机构】 浙江大学能源工程学院特种装备研究所；

【摘要】 圆柱耐压壳在潜水器中有着广泛应用,有着空间利用率高的优点。复合材料在圆柱耐压壳上的应用可显著降低结构重量,因此受到了广大研究者的关注。屈曲失效是复合材料圆柱耐压壳的主要失效形式之一,对薄壁耐压壳的安全性影响极大。如将航空航天领域常用的复合材料变角度设计方法引入到复合材料耐压壳领域,可提高结构的临界屈曲载荷,进而缓解这一问题。本文基于作者过去提出的一种等几何分析壳方法,开发适用于变角度复合材料耐压壳的高效数值模型,从而为变角度复合材料耐压壳的抗屈曲设计提供一种有前景的新方法。更多还原

【Abstract】 Cylindrical pressure hulls are widely used in submersible vehicles due to their high space utilization efficiency.The application of composite materials in such hulls can significantly reduce structural weight,which has attracted considerable research attention.Buckling failure represents one of the primary failure modes for composite pressure hulls,posing substantial safety risks to thinwalled hulls.Introducing the variable-angle fiber steering technique-commonly employed in aerospace composite design-into pressure hull design could enhance critical buckling loads and thus mitigate this issue.Building upon the author’s previously developed isogeometric shell analysis method,this study establishes an efficient numerical model for variable-angle composite pressure hulls,offering a promising new approach for buckling-resistant design.更多还原