采用三种应力分析方法的椭圆形封头应力分布研究  

Study on stress distribution of ellipsoidal head through three kinds of stress analysis method

作　　者：付磊[1,2] 张应迁[1,2] 罗云蓉[1,2] 付伶[1,2] 

机构地区：[1]四川理工学院机械工程学院,自贡643000 [2]过程装备与控制工程四川省高校重点实验室,自贡643000

出　　处：《现代制造工程》2015年第7期71-75,97,共6页Modern Manufacturing Engineering

基　　金：过程装备与控制工程四川省高校重点实验室基金资助项目(GKYJ201101;GK201205);材料腐蚀与防腐四川省重点实验室基金资助项目(2012CL10);四川理工学院校级基金资助项目(2010XJKYL006)

摘　　要：分别采用薄膜理论、ANSYS有限元数值模拟和电测法三种方法,对压力容器的椭圆形封头应力分布进行研究。通过薄膜理论计算椭圆封头相应测试点的薄膜应力,并采用电测法对其测点的应力进行测定,再利用ANSYS软件对其应力进行数值模拟。对三种应力分析方法进行对比分析研究,探讨了椭圆形封头的应力变化规律及影响因素,验证了封头应力计算方法的正确性,对压力容器封头应力的测定具有指导意义。The stress distribution of the pressure vessel was studied, by means of thin film theory, ANSYS finite element numerical simulation and electrometric method. The film stress of the ellipsoidal head corresponding test points was calcucated through the film theory. The stress of test points were tested by the electrical measuring method ; and the numerical simulation on the stress of the ellipsoidal head was performed on ANSYS software. On basis of the three stress analysis methods ,the reason for the stress var- iation of the ellipsoidal head was investigated and the calculating method of the head stress was verified, which will shed light on the testing of the practical vessels head stress.

关 键 词：椭圆形封头 应力分布 理论分析 数值模拟 试验测定 

分 类 号：TH16[机械工程—机械制造及自动化]