带冠涡轮叶片的接触分析

:1006-1355(2005)04-0005-031,2,1(1.,200030;2.,412002):,,(),,:;;;;:O32:AContactAnalysisofShroudedTurbineBladeTANGFeng1,2,MENGGuang1(1.SchoolofMechanicalandPower,ShanghaijiaotongUniversity,Shanghai200092,China;2.ChinaAviationPowerplantResearchInstitute,ZhuzhouHunan412002,China)Abstract:Anaeroenginepower2turbine1ststagerotorshroudedbladeistakenforanexampleinthearticle,tightnessofshroudandcontactforcebladebodystressunderworkingstateandassemblystatearecalculatedbyfiniteelementcontactanalysismethod,influenceofworkingload(temperatureandcentrifugalforce)ismainlyanalyzed.Analysisresultsindicate:shroudtightnessisdeterminedbypre2twistangleofshroudandworkingload,thecentrifugalforceplaysamainroletothetightnesschange.Keywords:vibrationandwave;shroudedbladepre2twist;tightness;contactforce:2004211222;:2005204223:(1968-),,,,,:,,,,,,,,,,,,[1][2],,[3][4],,,,(),,,,,1,MARC,,1H,51,,,H,UU=H0tancos(+)(1),H0-;=360/;-;-,0,50,:40,1,H0=146.8mmHH=H0tancos-H0tancos(+)(2)11.52,()11()U(mm)H(mm)014.206113.9960.251.513.8890.35213.7810.4522.11),,:,,2,insert32342),,1/50,42.2,xyz,,,33.1,21.55MPa,0.25mm,344.1MPa,825MPa,HP0HP0F0(P0)22H(mm)P0(MPa)F0(N)0.2521.55186.40.3530.17261.00.4538.79335.53.2200584,,,,33:1),2),,,H,,H3),,,,4),,3(:N)H(mm)+0.25289.7195.4296.1300.40.35379.2264.8372.1390.50.45475.6337.8451.7482.13.3,4H0.25mm,5,64:1),,,,,,;2),,,3.4(1),,054H(mm)(MPa)10300.25644.70.35690.90.45738.25(:MPa)6(:MPa)5()(mm)(mm)10.418960.406061.50.626810.5322320.833550.668614,:(17)767TMD84(1);(2),--TMD;(3)TMDTMDTMD;(4)STMDMTMD,MTMDSTMD,STMD,,:[1],.[M].:,1999.[2],,.(TMD)[J]..1994,22(2):159-164.[3],.[J]..1998,3:12-18.[4]Ho2ChulKwon,Man2CheolKimandIn2WonLee.Vi2brationControlofBridgesunderMovingLoads[J].Com2puters&Structures.1998,66(4):473-480.[5],,.[J]..1998,14(2):9-16.[6]DenHartog.MechanicalVibrationDoverPublications[J].NewYork,1985.[7].[J]..1982,3(1):74-111.[8].[M].:,2002,38-40.(7)1),;2),;3);4),,:[1],,.[J].,2002,3:126-128.[2],,.[C]..,2002,166-169.[3],,.[J].,2001,1:33-36.[4].[D].[].:,2000.[5].10[M].:,2001.71MTMD