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当前位置:首页 > 商业/管理/HR > 管理学资料 > 螺纹深度和螺距对螺纹连接强度影响的有限元分析-涂文兵
:1005-0523(2017)02-0118-0634220174JournalofEastChinaJiaotongUniversityVol.34No.2Apr.,2017:2016-10-26:(20151BAB216017,20161BAB206151):(1983—),,,,。,,,,(,330013):,。,333-。、。,、,,。:;;;;:U463.55:A,。,。KENNY[1]M30,SOPWITH、。[2]-、。[3],、。[4],,,,、。[5],、、、、。[6]Yamamoto,,。Chen[7],。Yang[8],。[9],,。[10],Yamamoto,,。[11]、,,、。,DOI:10.16749/j.cnki.jecjtu.2017.02.01721Tab.1Geometricalparametersofthreadedconnection1.2、2D3D,2D[12]。,,,2D;;,,5%,。SolidQuad8node82。300M,,=7830kg/m3,E=206GPa,=0.3,=1220MPa。1,374111255。1.3,、;,,F=4kN,28。,,2DTARGE169、CON-TA172,0.1。1Fig.1FEMmodeloftheThreadedConnectiondd1PHh13631.67043.4642.16523632.53643.4641.73233633.40243.4641.29943632.75232.5981.62453633.83521.7321.083,:、、,、。M36,ANSYS。、,、,。11.1M36,1。mm11920172Tab.2Comparisonofstaticsparameters/kN/mm/MPa/MPa/%431.675.0785.3154.67,4.67%,,。2.2323。23:h1=2.165mm,h2=1.732mmh3=1.299mm,。,,。,,,,22.1σ=4Fπd12(1):F,N;d1,mm;σ,MPa。,9.813MPa,,0.817MPa,,5.315MPa。2,,(1)。2Fig.2Stressdistributionofthreadedconnectionunderdifferentthreaddepth(a)h1=2.165mm(b)h2=1.732mm(c)h3=1.299mm3Tab.3Maximumstressonthreadrootatdifferentthreaddepth/mm/MPa12.1659.81321.73220.14231.29928.19012022.3354。54:P1=4mm,P2=3mmP3=2mm。,,,,4Tab.4Maximumstressonthreadrootatdifferentthreadpitch/mm/MPa149.8134321.4895228.7175Fig.5Stressdistributionatdifferentthreadpitch3Fig.3Locationlogoofthreadedconnection4h1=2.165mmFig.4Stressondifferentlocationofthreadrootwhenh1=2.165mm,:(a)P1=4mm(b)P2=3mm(c)P3=2mm/MPa12108642012345,,。34。4:,,,,,。121201765:,。,。,,,。F2=8kNF1=4kN2,F3=12kNF1=4kN3,,。3M36,333,、,:1),。,,。2),,6Fig.6Stressdistributionatdifferentloads。,,,,,,。2.43、65。(a)F1=4kN(b)F2=8kN(c)F3=12kN5Tab.5Maximumstressonthreadrootatdifferentthreadpitch/kN/MPa/×10-4mm49.8137.432819.61614.321229.42721.481222,:。3),,。4),,。:[1]KENNYB,PATTERSONEA.Loadandstressdistributioninscrewthreads[J].ExperimentalMechanics,1985,25(3):208-213.[2],.、[J].,2006,28(4):146-147.[3],,,.[J].,2008,30(5):823-828.[4],,.[J].,2009,32(9):1028-1031.[5],,,.[J].,2010,46(9):171-178.[6],,,.[J].,2010,29(2):208-211.[7]CHENSJ,ANQ,ZHANGY,etal.Loadinganalysisonthethreadteethincylindricalpipethreadconnection[J].JournalofPressureVesselTechnology,2010,132(3):1-8.[8]YANGG,HONGJ,ZhuL,etal.Three-dimensionalfiniteelementanalysisofthemechanicalpropertiesofhelicalthreadconnec-tion[J].ChineseJournalofMechanicalEngineering,2013,26(3):564-572.[9],,.[J].,2013(6):816-822.[10],,.[J].,2015(10):33-37.[11],.[J].,2016,54(4):37-40.[12]ZHAOHUA.Anumericalmethodforloaddistributioninthreadedconnections[J].JournalofMechanicalDesign,1996,118(2):274-279.[13],,.[J].,2002,19(2):39-41.FEMAnalysisoftheEffectofThreadPitchandDepthonStrengthoftheThreadedConnectionTuWenbing,HeHaibin,WangXiaoxin,ZouYinhui,ZhouHaohao(SchoolofMechatronicsandVehicleEngineering,EastChinaJiaotongUniversity,Nanchang330013,China)Abstract:Thethreadedconnectionisacommonpartsconnectioninmechanicalindustry,anditsconnectionstrengthhasgreatinfluenceonthereliabilityofthepartsconnectionrelationship.Tostudytheinfluencefactorsofthestrengthofthreadedconnection,thefiniteelementmodelsofbolt-nutthreadconnectionwiththreetypesofthreaddepth,threetypesofpitchandthreetypesofloadwereestablished.Theinfluenceofthethreaddepth,pitchandloadingonthestrengthofthreadedconnectionwasanalyzedfromthestressofthreadrootandtheaxi-aldeformationofbolt.Theresultsshowedthatthethreadrootstressisinverselyproportionaltothethreaddepthandpitch,andtheboltaxialdeformationhasdirectratiorelationswithloading,whichprovidestheoreticalbasisforimprovingthestrengthofthreadedconnection.Keywords:threadedconnection;threaddepth;pitch;load;stress()123
本文标题:螺纹深度和螺距对螺纹连接强度影响的有限元分析-涂文兵
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