兆瓦级风力发电机机舱罩强度分析与设计

/FRP/CM2012.No.31*121.3100122.311106、、、。。1ANSYS。。TB332TK8A1003－0999201203－0003－042011-12-141984-、。。1.5～2MW。2。。11。、、、、。1.1300g/m2、450g/m2CSM900g/m20°90°WovenFabricPVC。VDI20143。、、、、、4～6。0°90°、0°90°、0°90°、0°90°、0°90°、0°90°、0°90°、78。。1.2ANSYSSolidworksANSYS。。、。。83DShell181255。。ANSYSWorkbench13.0。NamedSelec-320123FRP/CM2012.No.3tion。12。1Fig.1Nacelletopbasiclayuparea2Fig.2CoordinatesystemofthenacelletopANSYSxz。910。。03。3Fig.3DroppedstructurelayupWorkbench。22.1GL111.05。。wsk=12ρ·V2wind·A·cw1q=wskA=12·ρ·v2wind·cw2ρvwind50cw1。1Table1Simplifiedcwvaluesassumedforanacellecw+0．8－0．5－0．6cwGL10%cw20%。2.21。2。p=γ·psk=1.5×3=4.5kN/m2。。20×20cm1.5kN。3p=γF·psk=1.5×3=4.5kN/m2。。2.320kN。33.1GL115.5.11420125/FRP/CM2012.No.3Sd≤Rk/γMx=Rd3SdRkγMxRd=Rk/γMx。γMxγMx=γM0·ΠiCix=2.414γM0=1.35C1a=1.35C2a=1.1C3a=1.2。。3.2。1.05q=4.5kPa。14.4mm、14.4mm+5mm14.4mm+140mmPVC+5mm。ANSYSxySd。1010。10x、y、2。210Table2Thetop10layersstressesLayers＆MaterialsSx/MPaSy/MPamaxminmaxminRk/γMx=Rd/MPaγsxyLayer1CSM_30043．91－8．62811．057－6．39551．8718．13%369．11%Layer2CSM_30043．753－8．49310．55－6．07051．8718．55%391．66%Layer3WF67．266－12．40913．935－10．905117．8475．19%745．64%Layer4WF66．581－11．85313．624－10．80117．8476．99%764．94%Layer5CSM_45048．201－8．5289．860－5．50258．5121．39%493．41%Layer6PVCCore0．332－0．66e－10．64e－1－0．36e－10．75125．90%1071．88%Layer7WF63．107－13．05712．051－10．27117．8486．73%877．84%Layer8WF62．422－13．70711．741－10．166117．8488．78%903．66%Layer9WF61．737－14．35611．43－10．74117．8490．87%930．97%Layer10CSM_45044．676－11．6598．204－9．7658．5130．97%613．19%SxSyxySd12。RdRdCSM_300=125/2．41=51．87MPaRdCSM_450=141/2．41=58．51MPaRdWF=284/2．41=117．84MPaRdPVCCore=1．8/2．41=0．75MPaγs=Rd－|Sd|Sd×100%52103xx18.13%。4。4Fig.4ThelocationoftheMaxstressonthefirstlayeroftopnacelle。。13520123FRP/CM2012.No.31。。。14。2。。。15。41、。23。、。、、。1．M．2006．2．、M．2010．3VDI2014part3．DevelopmentofFiber-ReinforcedPlasticscompo-nentsAnalysisS．September2006．4GB/T1447-2005S．5GB/T1448-2005S．6GB/T1463-2005S．7GB/T3355-2005S．8．-J．/2009546-48．9．ANSYS11．0M．2008．10．J．/2011120-23．11GermanischerLloydRulesandregulationsIV-IndustrialServicesPart1-GuidelineforCertificationofWindTurbinesS．12．3DSEC-W01-1250、J．/2010163-66．13．J．/2009650-53．14．D．2008．15．M．2007．STRENGTHANALYSISANDDESIGNOFMEGAWATTWINDTURBINENACELLECOVERLIChao1*SHENFeng-ya1YUGuo-cheng21.ZhejiangWindeyCo．Ltd．Hangzhou310012China2.StateKeyLaboratoryofWindPowerSystemHangzhou311106ChinaAbstractCompositematerialshavesomeexcellentperformancessuchashighratioofspecificstrengthhighmodulusratioeasilydesigningandfabricatinglowercostetc．Soitisthefirstoptionforthewindturbinena-celle．Thetechnologyaboutnacelledesignandfabricationisalreadymaturedinthedomesticbynow．Howevertherestillexistsagaponcomparisonwithsomeforeigncountriesinsometechnicalskillssuchasstrengthcalculationandproductcertification．Basedontheclassiclaminatetheorythepapercalculatestheextremestrengthforacer-tainnacellecoverbyusingtheFEsoftwareANSYS．Itcanbeconcludedsomeguidelinemethodsofthecompositestructuraldesignandlaminatelayupstrategyfromtheanalysisresults．Thetestsdemonstratethatthismethodissim-pleandpracticable．Itprovidesreferenceforthewindturbinedesigner．Keywordswindturbinenacellecovercompositematerialfiniteelementmethod620125