非标准长圆形截面容器的应力分析与数值计算
Stress Analysis and Numerical Computation of Pressure Vessel with Nonstandard Obround Cross Section
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- DOI:
- 作者:
- 蒙文
MENG Wen
- 作者单位:
- 广西工业职业技术学院, 广西南宁 530001
Guangxi Vocational and Technical Institute of Industry, Nanning 530001,China
- 关键词:
- 长圆形截面容器;薄膜应力;弯曲应力;有限元分析
nonstandard pressure vessel with obround cross section;film stress;bend stress;finite element analysis
- 摘要:
- 长圆形截面容器广泛应用于石油化工等领域,具有双拉撑板加强的长圆形截面容器属于非标容器。为了解决其应力计算问题,针对其特殊结构建立了理论计算模型并进行了应力分析,推导出了适于工程设计的应力计算公式,并将计算结果与有限元分析结果进行对比。结果表明:理论值与数值解吻合较好;建立的有限元计算模型较为真实地反映了容器的受力情况;由此得出的应力分布规律较真实地反映了容器的应力分布,从而为工程设计提供了可参照的方法。
The pressure vessels with obround cross section are widely applied in petrochemical industry. The vessel with obround cross section reinforced by two pieces of supporting plates is not a customized vessel. To calculate its stresses, a theoretical computation model is established based upon its unique structure, and the stress calculation formula has been derived for engineering design. The comparison of the calculation results with the results of finite element analysis shows that the theoretical values correspond well with the numerical calculation. The established finite element model can truly reflect the force bearing of the vessel. Therefore, the stress distribution resulted from the numerical calculation is correct. They provide good reference for engineering design.2008,4(4): 4-8,3 收稿日期：2007-9-2分类号：TE96;O348作者简介：蒙文,男,广西上林人,讲师,华中科技大学工学硕士,长期从事压力容器的理论教学与研究工作.参考文献：
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