压力容器开孔处局部和整体建模有限元对比分析

Contrastive Analysis Local and Whole Body Finite Element Analysis for Pressure Vessel Opening

即存在大开孔结构,又开排孔的压力容器,对于开孔部位的强度分析显得尤为重要。本文针对大开孔和排孔结构分别进行局部有限元分析,同时建立设备整体有限元模型,通过局部有限元分析结果与整体有限元分析结果的对比,给出压力容器开孔分析时建立哪种模型更为合理。

Stress analysis on sections around holes is important to pressure vessels which have large opening structure and holes in pattern. In this essay,we perform local and whole body stress analysis on both sections around large opening and holes in pattern. We build finite elements model to the whole and local equipment. With comparing and analyzing the local finite- elements analysis results with the whole ones,we can get the better method for sections around holes.