压力容器2025，Vol.42Issue(3)：29-36,8.DOI:10.3969/j.issn.1001-4837.2025.03.004
碳纤维复合材料Ⅳ型储氢气瓶结构设计及应力仿真研究
Study on structural design and stress simulation of carbon fiber composite type Ⅳ hydrogen storage cylinder
摘要
Abstract
For carbon fiber composite-wound type Ⅳ hydrogen storage cylinders with different structural parameters,the winding layer was designed based on the grid theory,and the thickness of the dome winding layer was optimized.A progressive damage model was employed to predict the burst pressure of the hydrogen storage cylinder.On this basis,the influence of the aspect ratio,ellipsoidal ratio,polar opening ratio,and metal BOSS flange radius on the stress distribution of the hydrogen storage cylinder was investigated.The results indicate that the predicted burst pressure of the finite element model is 162.76 MPa,exceeding the design value of 157.5 MPa,confirming that the adopted layup method meets the design requirements.Increasing the ellipsoidal ratio can reduce the fiber stress of the cylinder,and the structure of the cylinder is most reasonable when the ellipsoidal ratio is 1.414.Under working pressure,increasing the aspect ratio and polar opening ratio can reduce the stress in the winding layer.Increasing the radius of the metal BOSS flange can reduce the liner stress of the cylinder under working pressure;however,when the flange radius exceeds 60 mm,the stress on its upper surface exhibits an upward-opening parabolic shape,indicating that the structural performance of the middle section is not fully utilized.The research findings can provide a reference for the practical engineering applications of carbon fiber composite-wound type Ⅳ hydrogen storage cylinders.关键词
储氢气瓶/长径比/应力/极孔率/金属BOSS法兰半径Key words
hydrogen storage cylinder/aspect ratio/stress/polar opening ratio/metal BOSS flange radius分类
机械制造引用本文复制引用
李晋,赵小寇,梁建国,赵春江,冯宁,郭冠宇..碳纤维复合材料Ⅳ型储氢气瓶结构设计及应力仿真研究[J].压力容器,2025,42(3):29-36,8.基金项目
国家自然科学基金项目(52075361) （52075361）
山西省科技重大专项(20201102003) （20201102003）
山西省重点研发计划项目(201903D421030) （201903D421030）
吕梁市校地合作重点研发专项(2022XDHZ08) （2022XDHZ08）
山西电子科技学院人才引进科研启动基金项目(2023RKJ017) （2023RKJ017）
