[1]平飞,王飞,王国伟,等.95°~135°不规则Z形弯管应力变化规律[J].华侨大学学报(自然科学版),2017,38(5):664-669.[doi:10.11830/ISSN.1000-5013.201609037]
　PING Fei,WANG Fei,WANG Guowei,et al.Stress Changing Regulation of Irregular Z-Shaped Elbow With Curvature of 95°-135°[J].Journal of Huaqiao University(Natural Science),2017,38(5):664-669.[doi:10.11830/ISSN.1000-5013.201609037]
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95°~135°不规则Z形弯管应力变化规律()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第38卷
期数:
2017年第5期
页码:
664-669
栏目:
出版日期:
2017-09-20

文章信息/Info

Title:
Stress Changing Regulation of Irregular Z-Shaped Elbow With Curvature of 95°-135°
文章编号:
1000-5013(2017)05-0664-06
作者:
平飞;  王飞;  王国伟;  雷勇刚
太原理工大学 环境科学与工程学院, 山西 太原 030024
Author(s):
PING Fei;  WANG Fei;  WANG Guowei;  LEI Yonggang
College of Environment Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
关键词:
直埋供热;  Z形弯管;  补偿弯臂;  弯管应力;  数值模拟
Keywords:
directly-buried heating;  Z-shaped elbow;  compensation bent arm;  elbow stress;  numerical simulation
分类号:
TU833.1
DOI:
10.11830/ISSN.1000-5013.201609037
文献标志码:
A
摘要:
假设管道材料为无限弹性体,采用ANSYS有限元分析软件,对95°~135°范围内不规则Z形直埋供热弯管进行数值模拟,并绘制各种参数下弯管最大应力变化曲线图和DN1 200不规则Z形弯管在95°~135°转角下的线算图.模拟结果表明:随着膨胀垫厚度、壁厚、管径的增加,弯管应力最大值逐渐减小;随着补偿弯臂、曲率半径的增加,弯管应力最大值先减小后增大;DN1 200不规则Z形弯管的补偿能力随着转角角度的增加而削弱.
Abstract:
The pipeline was assumed to be an infinite elastic solid, and the ANSYS software for finite element analysis was applied to conduct numerical simulation analyzing the irregular Z-shaped directly-buried heating elbow which was between 95° and 135°. The graph was drawn to describe the change of maximum stress on elbow with the various parameters, and the alignment chart was drawn to describe the DN1 200 irregular Z-shaped elbow with a curvature of 95°-135°. The simulation results showed that, the increase of the thickness of expansion cushion, thickness of pipe wall and pipe size will lead to a decreasing of the maximum stress on elbow; along with the compensation bent arm and radius of curvature increasing, the maximum stress on elbow first decreases then increases; and the increase of the elbow angle will give rise to weaken the compensation ability of the DN1 200 irregular Z-shaped elbow.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2016-09-22
通信作者: 王飞(1957-),男,教授,博士,主要从事供热技术与节能的研究.E-mail:wfwfsir@126.com.
基金项目: 住房和城乡建设部科学技术计划项目(2016-K4-079)
更新日期/Last Update: 2017-09-20