摘要
在国家大举发展大潜深、高承载潜水器的背景下,为了解决深海潜水器对耐压结构关键部件轻量化、高强度、高疲劳强度的需求,本文通过对碳纤维复合材料进行优化选材,使得结构设计满足设计要求。采用ANSYS建立有限元模型,对耐压舱进行结构设计及强度、稳定性计算。并通过静压试验舱装置对耐压舱开展静水压力试验,验证其结构稳定性。在90 MPa外压作用下,耐压舱复合材料筒各应力分量最大值小于T700级碳纤维/环氧树脂材料设计值,端盖端环Mises应力小于TC4钛合金材料抗拉强度,耐压舱整体一阶屈曲系数1.81,均满足设计要求。研制碳纤维复合材料耐压结构,并通过静压试验舱装置对碳纤维耐压舱进行外压试验,在76.5 MPa压力环境下,耐压舱具有深海耐压生存能力。本文研制的碳纤维耐压舱满足深海使用技术要求,为深海潜水器重要组成部件提供了一种有效的解决途径。
Under the background of large-scale development of deep diving and high bearing submersibles in China.In order to solve the deep-sea submersible pressure structure key components of light weight,high strength,high fatigue strength needs.In this paper,the material selection of carbon fiber composite is optimized to make the structural design meet the design requirements.The finite element model is established by ANSYS,and the structure design and strength and stability calculation of the pressure cylinder are made.The hydrostatic pressure test of the pressure cylinder was carried out by the static pressure experimental chamber device to complete the experimental verification.Under the effect of 90 MPa external pressure,the maximum stress component of the composite cylinder was less than the design value of T700 carbon fiber/epoxy resin material.The Mises stress of the end cap ring was less than the tensile strength of TC4 titanium alloy material,and the overall first-order buckling coefficient of the ballast tank was 1.81,which met the design requirements.The pressure structure of carbon fiber composite material is developed,and the external pressure test of carbon fiber ballast tank is carried out by static pressure experimental chamber device.Under the pressure environment of 76.5 MPa,the ballast tank has the survivability of deep sea pressure.The carbon fiber pressure resistant cabin developed in this article meets the technical requirements for deep-sea use.Provide an effective solution for important components of deep-sea submersibles.
作者
高维瑾
郭宇琦
纪丹阳
车士俊
GAO Weijin;GUO Yuqi;JI Danyang;CHE Shijun(Harbin FRP Institute Co.,Ltd.,Harbin 150028;The Architectural Design and Research Institute of HIT Co.,Ltd.,Harbin 150001)
出处
《纤维复合材料》
CAS
2024年第2期65-70,共6页
Fiber Composites
关键词
碳纤维
耐压舱
深海潜水器
外压测试
有限元分析
carbon fiber
ballast chamber
bathyscaphe
external pressure test
finite element analysis
