压力容器椭圆形封头与圆柱壳过渡连接处的力学综合分析

Comprehensive Mechanics Analysis for Transition Joint of Elliptic Heads and the Cylinder in Pressure Vessel

在中、低压力容器常规设计中,对椭圆封头与筒体连接处的边缘应力不做计算,但连接处的边缘应力对压力容器的制造和使用影响较大。所以笔者应用薄膜理论和有限单元法对椭圆端盖与圆筒连接处的边缘应力进行了综合分析。通过计算和分析,得出了椭圆端盖与圆筒过渡连接的合理数值量。

The edge stress at the joint of the elliptic heads and the cylinder is not calculated in the conventional design of medium and low pressure vessels. However, this edge stress greatly influences the manufacture and use of pressure vessel. In this paper, the author gave a comprehensive analysis of the edge stress at the joint of the elliptic heads and the cylinder by means of the thin shell theory and finite element stress analysis. By way of calculation and analysis, the rational numerical value of interim joint of the elliptic end-lid and the cylinder is obtained.