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400m^3球罐分拆搬迁组焊棱角区有限元应力分析
引用本文:杨惠谷,顾素兰.400m^3球罐分拆搬迁组焊棱角区有限元应力分析[J].压力容器,2009,26(8):32-36.
作者姓名:杨惠谷  顾素兰
作者单位:1. 上海市特种设备监督检验技术研究院,上海,200062
2. 上海宝钢工业检测公司,上海,201900
摘    要:某钢铁集团公司一台400m^3球罐由于世博选址改造需分拆搬迁后重新组装,组装焊接过程中极易产生错边及角变形缺陷。为有效地控制组装时的角变形,采用有限元数值分析方法进行计算,建立三维有限元模型,对球罐整体进行有限元应力分析,同时,进行不同角变形参数下的应力分析和有限元计算,确定了焊后棱角度的数值上限,以确保现场施工的顺利进行。

关 键 词:球罐  棱角区  应力分析

Infinite Element Stress Analysis of Welding Angle Influenced Area on 400 m3 Spherical Vessel during Disassemble-remove-reassemble Project
YANG Hui-gu,GU Su-lan.Infinite Element Stress Analysis of Welding Angle Influenced Area on 400 m3 Spherical Vessel during Disassemble-remove-reassemble Project[J].Pressure Vessel Technology,2009,26(8):32-36.
Authors:YANG Hui-gu  GU Su-lan
Affiliation:YANG Hui - gu , GU Su - lan( 1. Shanghai Institute of special Equipment and Technical Research, Shanghai 200062, China ; 2. Shanghai Baosteel Industry Inspection Crop. ,Shanghai 201900,China)
Abstract:A400 m^3 spherical vessel belongs to a steel company have to carry out a disassemble -remove - reassemble project caused by EXPO2010 site selection. Defects of misaligned concoct edge and angular distortion are easy to generate during the reassembling. In this paper, in order to effectively control the angular distortion, infinite element analysis method was adopted and a modle was built to analyse the whole vessel's stress distribution. After analysing and calculating with different amount of angular distortion, the upper limit of angular distortion was found, which greatly supported the construction.
Keywords:spherical vessel  angular distortion  stress analysis
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