摘要
圆柱壳的稳定性是外压容器设计中应该考虑的首要问题。文章利用有限元软件ANSYS分别对外压圆柱壳进行了特征值、几何非线性和几何/材料双非线性屈曲分析,并把有限元计算结果和Mises公式计算结果进行了对比,给出了外压圆柱壳稳定性的分析结论。同时,对带加强圈的外压圆柱壳进行了失稳分析,提出了一种判断加强圈的刚度是否满足稳定性要求的新方法。
The stability of cylindrical shell is the primary problem that should be considered in the design of external pressure vessel. This paper analyzed the eigenvalue, geometry nonlinear and geometry-material nonlinear of external pressure cylindrical shell with a special finite element analysis software--ANSYS and compared the results with Mises results, thus obtained the analytic conclusion of the stability of external pressure cylindrical shell. The stability anslysis of Cylindrical Shell with Stiffening rings was also carried out and a new method was proposed to evaluate the rigidity of Stiffening rings.
出处
《轻工机械》
CAS
2013年第1期29-31,35,共4页
Light Industry Machinery
关键词
外压
圆柱壳
稳定性
ANSYS软件
加强圈
external pressure
cylindrical shell
stability
ANSYS software
stiffening ring
