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ID:36501080
大小:1.74 MB
页数:76页
时间:2019-05-11
《基于ANSYS平台的管线钢焊接温度场模拟》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西南交通大学硕士学位论文基于ANSYS平台的管线钢焊接温度场模拟姓名:张宏申请学位级别:硕士专业:材料加工工程指导教师:陈鹏20070501西南交通大学硕士研究生学位论文第11页AbstractWeldingisacomplicatedphysicochemicalprocesswhichinvolvesinelectromagnetism,heattransferring,metalmeltingandfreezing,phase-changeweldingstressanddeformationand80On.Inordertogethigllqualityw
2、eldingg衄lc嘶。thesefactorshavetobecontrolled.Ifweldingprocesscanbesimulatedwithcomputer,thebestdesign,proceduremethodandoptimumweldingparametercanbeobtained..Basedonsummingupother'sexperience,employingnumericalcalculationmethod,thispaperrcsearchersystemicallydiscussesthefiniteelementana
3、lyticalsystemoftheweldingprocessbyrealizingthe3Ddynamicsimulationofweldingtemperaturefield,andthenII$eStheresearehresulttosimulatetheweldprocessofboardsurfacingandmakegroovemultilayerweldbyANSYS.Atthesametime,thecalculationresultaccordswithtraditionalanalysisresultandtheoryresult.Them
4、aincontentsofthepaperareasfollowing:1)Solvingtheno-linerquestionofparametersofmaterial,thisisthefunctionofthetemperature.2)UtilizationbirthanddietechniqueofelementinANSYS。simulatinggroovemultilayerweldprocessandcomputingtheweldingtemperaturefield.3)ChoosethefunctionofGaussasheatSOtLre
5、emodel.u辩thefunctioncommandtoapplyloadofmovingheatsource.Amathematicmodeloftransientthermalpmcessinweldingisestablishedtosimulatethemovingoftheheatsource.Thethroughreal—timedynamicsimulation西南交通大学硕士研究生学位论文第m页oft_hestressproducedinweldingprocess。钔Utilizationthermocoupleactualmeasuremen
6、tweldtemperaturefieldofX80.5)Summingupisapplicabletothehandal'GweldingsoldersbelowthetemperaturetermofroomtogetherwiththefunctionalrelationagainstthestringenergyofT螂.Inthispaper,afeasibledynamicsimulationmethodon3Dweldingtemperaturefieldwhichprovidestheoryfoundationandinstruction011op
7、timizingtheweldingtechnologyandparameters·KeywordsTemperaturefield;Pipeline;FEA;Thermoeouple;ANSYS西南交通大学硕士研究生学位论文·第1页第一章绪论弟一早j白T匕1.1国内外管线钢的发展过程随着世界经济的飞速发展,石油天然气的需求日益增加.作为石油和天然气的一种经济、安全、不间断的长距离输送工具,油气输送管道在近40年取得了巨大的发展。目前,全世界石油、天然气管道的总长度已超过2.30X106km,并以每年2Xi04~3×io%,n的速度增加。在近10年内,我国己建成陕
8、.京管道、
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