:,:,:;;;;:TQ05113:A:1001-4837(2002)02-0038-04StudyonMethodsfortheReinforcementofPressureVesselswithLargeOpeningsResearchInstituteofChemicalMechanicEngineering,ZhejiangUniversityLIUBaoqingJIANGJialingAbstract:Therewillbegreatstressconcentrationappearingnearbythejunctionofnozzleandshellofpressurevesselswithbigopenings,soreinforcementisabsolutelynecessary.Thispaperintroducedseveralreinforcementmethodsforpressurevesselswithbigopenings:pressureareamethod;limitloadmethod;finiteelementmethod,alsoanalyzedtheirownprincipiumandcharacter.Keywords:bigopening;reinforcement;pressureareamethod;limitloadmethod;finiteelementmethod:DiD;did;AP;A;P;[];hh1;1;001;cc1;s;Ps;PLT;PLtT;PLCT,,JB473295,:;();,,,,GB1501998,,,,:,83©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1AD,018,[1](1):ApPA([]-P/2)AP=Di2(di2+h)+di2(+h1)A=h+h11,[]-P/21,,1h(-0-c)+h1(1-01-c1)di0/20=PDi2[]-p01=pdi2[]-p:pDi2(di2+h)+di2hi([]-p/2)(h+h11-hc-h1c1),:pDi2(di2+h)+di2(h1+)([]-p2)(h+h11-hc-h1c1),PDi/2,PDi/2,,d/2,,;(Di+-c)(-c),,d/2(Di+-c)(-c),,,,2,,,,,,,,1%012%2[2],PTL,PTLtPTLCPTL,;PTLt,;PTLC,Cloud[3]PL=Ps=[162(1/)2+228(/1)(d/D)+210]a+155108a2+[228(d/D)2+228]a+152Ps=2sD;a=dDD93192111©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2,:,;,,ASMEASME-2,AD370,,,86,,,,,,[4]ANSYSSAPNASTRANI-DEASADINA,,,,,[5],X,,X=1,X=046,=A+BX+CX2+DX36:112233122331=A1B1C1D1A2B2C2D2A6B6C6D61XX2X3m:m=10dx=A+B/2+C/3+D/46:112233122331m=A1B1/2C1/3D1/4A2B2/2C2/3D2/4A6B6/2C6/3D6/41111:b=(-B2-C2-920D)+(B+C+910D)X6:112233122331b=-B12-C12-920D1B1+C1+910D1-B22-C22-920D1B2+C2+910D2-B62-C62-920D6B6+C6+910D61X(X=1),112233122331m+b=A1B156C1710D1A2B256C2710D2A6B656C6710D6111104CPVTVol19.No22002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(X=1):112233445566max=A1B1C1D1A2B2C2D2A6B6C6D61111,JB4732954,,,;,,,,,,,,,,,,,,,[1].[J].,2000,17(1):47-54.[2].[J].,2000,17(2):14-54.[3]Rodabaugh,E.C..AReviewofAreaReplace-mentRulesforPipeConnectionsinPressureVesselsandPipings[J].WRCBulleint[4],,.[J].,1981,19(12):17-26.[5].[M].:,1995.:2001-09-10:,,1978,,:,:310027(59)European/AfricanRegionalCommitteeDr.JohnDarlastonInstitutionofMechanicalEngineers1BirdcageWalkLONDONSW1H9JJUNITEDKINGDOMPh:+44-171-222-7899Fax:+44-171-222-4557E-mail:JOHNDARLASTON@cs.com(c)AmericanRegionalCommitteeProfessorGEOWideraMarquetteUniversityCollegeofEngineering1515WWisconsinAvenuePOBox1881MilwaukeeW153201-1881USAPh:+1-414-288-7259Fax:+1-414-288-1647E-mail:geo.widera@marquette.eduICPVT10,,:LocalSecretariatInstituteforPressureVessel&PlantTechnologyViennaUniversityofTechnologyGusshausstr.30/329A-1040Vienna,AustriaPhone:+43-1-58801-32900Fax:+43-1-504-15-88E-mail:sekretariat+e329@tuwien.ac.at:,,,,,E-mail14192111©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.