摘要
开孔结构作为低温压力容器最薄弱的部位,对其进行优化设计十分必要。采用ANSYS有限元分析软件,对圆柱筒体上相同管径的接管补强圈进行静力模拟分析。计算内容包括:补强圈最佳径厚比(半径长与厚度的比值);最佳补偿金属量。模拟结果表明:在径厚比为8. 7时,该比例补强圈对减少应力集中的效果最为显著;补强圈金属量增加,应力峰值降低;在控制补强圈直径上限大小的规定下,补强圈金属量为等面积补偿法所计算的补偿金属量的1. 4倍时,对减少结构应力峰值的效果较好且符合行业制造标准。可为低温压力容器开孔设计及生产制造提供参考。
As the weakest part of the pressure vessel, the opening structure is necessary to be optimized. Based on ANSYS finite element analysis software, a static simulation was carried out to analyze the reinforcing ring of cylindrical shell with same pipe diameter. The calculation contents include the optimum diameter ratio of the reinforcing ring and best compensation for metal. The simulation results show that when the ratio of diameters is 8.7, the effect of the ratio reinforcing ring on reducing stress concentration is the most significant. Increasing the metal volume of the reinforcing ring can reduce the stress peak. In strengthening the control of coil diameter limit, reinforcing ring metal quantity is 1.4 times that of the area of compensation method of calculating the compensation amount of metal structure, reducing the peak stress effect is good and is in line with industry manufacturing standards. This paper can provide reference for the design and production of pressure vessel.
作者
丁昌
吕林鹏
黄宇巍
粟天玮
应妮
孙培栋
Ding Chang;Lv Linpeng;Huang Yuwei;Su Tianwei;Ying Ni;Sun Peidong(School of Energy and Power Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China)
出处
《低温与超导》
CAS
北大核心
2018年第11期10-14,共5页
Cryogenics and Superconductivity
基金
河南省产学研项目(22104010001)
郑州轻工业学院横向项目(24100000008)
郑州轻工业学院博士基金项目(13501050005)
众创空间孵化项目(13306000001)资助
关键词
低温压力容器
开孔
有限元
等面积补强
Cryogenic pressure vessel
Hole
Finite element
Equivalent reinforcement
