基于ANSYS的高压容器封头的应力分析与结构优化

Stress Analysis and Structural Optimization of High Pressure Vessel Head Based on ANSYS

本文利用有限元分析软件,对高压容器的封头部分进行静力学分析和结构优化,通过仿真得到高压容器封头的总变形云图、应变云图和应力云图。结果表明,高压容器封头的最大变形量、最大应力和最大应变,均在高压封头和接管相接处,且其数值均随压力增加呈线性增加。通过结构优化设计,高压容器封头的壁厚减薄了14.4%,接管壁厚减薄了7.1%,封头和接管质量减轻了15.7%。优化后的封头不仅满足使用要求,而且降低了经济成本。

In this paper,the static analysis and structural optimization of the head of high pressure vessel were carried out by using finite element analysis software.The total deformation,strain and stress nephograms of the head of high pressure vessel were obtained by simulation.The results showed that the maximum deformation,maximum stress and maximum strain of the head of high pressure vessel were all connected with the head and nozzle of high pressure vessel.At the same time,the values increased linearly with the increase of pressure.Through the structural optimization design,the nozzle wall thickness of the high pressure vessel head was reduced by 7.1%,the head wall thickness was reduced by 14.4%,and the quality of the head and the nozzle was reduced by 15.7%.The optimized head not only met the application requirements,but also reduced the economic cost.