为实现水下耐压舱的功能化应用，并达到轻量化的目标，针对耐压舱的结构以及材料进行研究。采用碳纤维复合材料与钛合金材料设计制备水下双层圆柱形水密结构耐压舱，碳纤维层选择[90°/90°/0°]s的铺层方案，与纯钛合金制备的耐压舱相比重量可减少23%。基于Abaqus有限元分析软件对耐压舱受到的实际工况进行强度、刚度分析，结果表明筒体满足强度要求，并通过屈曲分析可得到耐压舱发生失稳的临界载荷为22.15 MPa。加工出实物，对实物进行加压实验，实验结果满足强度、刚度、密封性要求。分析表明碳纤维复合材料是制作水下耐压舱的重要途经。
In order to realize the functional application and lightweight of underwater pressure cabin, the structure and materials of pressure cabin were studied. Carbon fiber composite material and titanium alloy material are used to design and prepare underwater double-layer cylindrical watertight structure pressure cabin. The carbon fiber layer is selected as the layup scheme of [90°/90°/0°]s, and the weight of the ballast tank made of pure titanium alloy can be reduced by 23%. Based on the Abaqus finite element analysis software, the strength and stiffness analysis of the ballast tank under the actual working conditions are carried out. The results show that the cylinder meets the strength requirements, and the critical load of the ballast tank failure is 22.15 MPa by buckling analysis. The physical object was processed, and the material is subjected to pressure experiment. The experimental results meet the requirements of strength, stiffness and tightness. The analysis shows that carbon fiber composite material is an important way to make underwater pressure cabin.
2024,46(19): 1-6 收稿日期：2023-12-4
DOI：10.3404/j.issn.1672-7649.2024.19.001
分类号：TB333；TH49
基金项目：河南省水下智能装备重点实验室开放基金项目（KL03C2102）；华北水利水电大学客座教授基金项目（4001-40734）
作者简介：郝用兴(1966-),男,博士,教授,研究方向为新材料及先进加工技术、数字化设计、仿真与制造技术
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