基于Solidworks的三岔形岔管有限元分析及优化设计

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英文篇名：Finite Element Analysis and Optimization Design of Four-girders Reinforced Branch Pipe Based on Solidworks 作者：薛超 英文作者：XUE Chao;Liaoning Water Engineering Consulting Co.,Ltd.; 关键词：三岔形岔管 ; 二次应力 ; 应力均值 ; 有限元分析 ; 优化设计 ; Solidworks ; Simulation 英文关键词：four-girders reinforced branch pipe;;secondary stress;;average stress;;finite element analysis;;optimization design;;Solidworks Simulation 中文刊名：SDNY 英文刊名：Water Resources and Power 机构：辽宁省水利水电勘测设计研究院有限责任公司; 出版日期：2019-07-19 出版单位：水电能源科学 年：2019 期：v.37;No.227 语种：中文; 页：SDNY201907019 页数：4 CN：07 ISSN：42-1231/TK 分类号：80-83

摘要

以辽宁省某输水工程沿线隧洞进口设置的三岔形岔管为例,采用Solidworks软件中的Solidworks Simulation模块对岔管进行了有限元分析与计算,提出了更为合理的三岔形钢岔管体型。结果表明,增加梁的内伸宽度、截面高度、厚度均可降低梁和管壳的应力,其中梁本身的应力降低效果比管壳明显;拉杆附近的管壳位移最大且集中;管壳与加强梁连接处应力较高且集中,尤其是靠近拉杆和U梁水平中线附近;对于对称式三岔形岔管,在一定的内水压力作用下,腰梁的应力均值大于U梁,主管的应力均值大于支管;对于自流式长距离输水工程而言,为减小水头损失,岔管的加强梁应与管壳内部大致平齐。
        Combined with the four-girders reinforced branch pipe of the tunnel entrance of a water delivery project in Liaoning Province,the Solidworks Simulation module in Solidworks software was used to carry out the finite element analysis of the branch pipe,and a more reasonable four-girders reinforced branch pipe was proposed.The results show that increasing the width of inner part,the cross-section height and the thickness of girder can decrease the stress of the girder and the shell,but the stress reduction effect of the girder itself is more obvious than that of the shell;The displacement of the shell near the tie rod is the largest and concentrated;The stress at the joint between the shell and the girder is high and concentrated,especially near the tie rod and the horizontal center line of the U-shape girders;For the symmetric fourgirders reinforced branch pipe,the average stress of the waist girders is greater than that of the U-shape girders under a certain internal water pressure,and the average stress of the main pipe is greater than that of the branch pipe;For the automatic-flow long-distance water transfer project,it is important to keep the width of inner part of girders as small as possible in order to reduce the head loss.

引文

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