摘要
利用ANSYS有限元软件,对半圆管夹套容器进行应力分析,并与ASME规范计算结果进行对比。指出半圆管夹套容器最大应力发生在半圆管包围区域筒体内壁中点处,验证了最大应力由轴向一次薄膜应力与轴向一次弯曲应力组成,其控制值为1.5[σ]。并指出ASME方法在校核半圆管夹套容器筒体的强度时,计算得到的轴向薄膜应力加轴向弯曲应力大于有限元法得到的轴向薄膜应力加轴向弯曲应力,在设计时保留了一定的安全裕度,在实际工程应用中是可接受的。
This paper makes a stress analysis on the vessel with half-pipe jacket by adopting the ANSYS finite element analysis software.It also compares the calculation results with those of the ASME code.The paper points out that the maximum stress of vessel with half-pipe jacket occurs at the midpoint of the inner wall surrounded by the half-pipe.It verifies that the maximum stress consists of axial membrane stress and axial bending stress and its control value is1.5[σ].The paper also indicates that ASME code reserves a safety margin in designing because the calculation results of the axial membrane stress and axial bending stress calculated by ASME code in checking the cylinder strength of the vessel with half-pipe is greater than the stress calculated by finite element analysis.This is acceptable in engineering application.
出处
《石油化工设备技术》
CAS
2015年第5期21-24,27,共5页
Petrochemical Equipment Technology
关键词
半圆管夹套
有限元分析
轴向薄膜应力
弯曲应力
Half-pipe jacket
Finite element analysis
Axial membrane stress
Bending stress
作者简介
马圆圆，女，2008年毕业于浙江大学化工设备与机械专业，获工学硕士学位。现在中国石化工程建设有限公司从事石油化工设备的设计工作，工程师。Email：mayuanyuan@sei．com．cn。
