摘要
利用ANSYS有限元软件进行数值模拟,分析弯管折角角度、曲率半径、管径、壁厚和循环工作温差对40°~90°供热直埋折角弯管应力的影响规律.根据计算结果绘制不同影响因素与折角弯管最大应力曲线图.结果表明:随着弯管折角角度、曲率半径、管径、壁厚的增加,弯管最大应力值呈递减趋势;随着循环温差的增加,弯管应力最大值逐渐增大.
ANSYS finite element software was used to carry out numerical simulation of 40° -90° directly bur-ied heating angle elbow, which was to take analysis of how angle of the elbow, radius of curvature, pipe diam-eter, wall thickness and circulation work temperature influencing the stress of the elbow. The maximum stress curves were drawn to intuitively reflect the influences of all the factors on the bend stress. The results showed that, the increase of the bending angle, curvature, diameter and thickness of pipe led to a decreasing trend of the maximum bending stress; while widening difference in the cyclic temperature increased the maximum ben-ding stress value of the elbow.
出处
《华侨大学学报（自然科学版）》
CAS
北大核心
2017年第1期75-79,共5页
Journal of Huaqiao University(Natural Science)
基金
住房和城乡建设部科学技术计划项目(2016-K4-079)
关键词
供热直埋
折角弯管
最大应力
数值分析
directly buried heating
angle elbow
maximum stress
numerical analysis
