基于近似模型技术的复合材料耐压壳性能研究

基于纤维增强复合材料具有高比模量,高比强度的特点,提出内部环肋金属内衬外部缠绕复合材料的潜水器耐压壳结构形式,结合有限元方法和近似模型技术对该种结构形式的耐压壳进行研究。得到复合材料加强纤维的含量与耐压壳结构性能参数的关系以及不同铺层角对耐压壳临界失稳压力的影响,为该种形式复合材料耐压壳的设计提供设计依据。

Research on the Composite Material Pressure Hulls Based on Approximation

Considering the advantages of high strength-to-density and high stiffness-to-density of fiber -reinforced composite material,a filament-wound composite pressure hull with metal linger reinforced with inner ring-frames is proposed in this paper. Approximation technology combined with finite element analysis are used to research this kind of structure. The relevance between the fiber percentage and structure performance factors are obtained. Besides,the effect on critical buckling pressure with different layer angles are studied as an design reference for this kind of pressure hulls.