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1、基于ansys的石油钻采大钩模态分析（ModalanalysisoflargehookforoildrillingandextractionbasedonANSYS）Thisarticleiscontributedbyasd19881116PdfdocumentsmayexperiencepoorbrowsingontheWAPside.ItisrecommendedthatyoufirstselectTXT,ordownloadthesourcefiletothelocalview.Modalanalysi
2、soffirehookinoildrillingbasedonANSYSModeIanalysisofthepetroleumdrillwelIbasedOnANSYSYuHuali1,XuJingfang2.LiuYanguo3YUHua.IilIXUJin-fan92,LIUYan-gu03(1.LanzhouPolytechnicCollege,Lanzhou730050;2.Portlandstonegroup,Lanzhou730050;ZhejiangInstituteofMechanicalan
3、dElectricalEngineering,3.Hangzhou310053)Abstract:Aimingatthehookofacertaintypeofoildrillingrig,establishthree-dimensionalfiniteelementmodelofhooksystemwithCAD,usinglarge-scalefiniteelementsoftwareANSYS,thehookofmodalanalysis,obtainedthelargehooksystemnatura
4、lfrequencyandvibrationmodeforthefuturelaidthefoundationforcalculationofdynamicresponseofleptospira.Keywords:modalanalysis;righook;vibrationmode;ANSYSCLCnumber:TE923;documentidentificationcode:A;ArticleNumber:1.009-0134(2009)01-0026-030IntroductionAmainstruc
5、tureofequipmenttoimprovethefootoildrillingrighook,duringtheactualoperation,becausethedrillingconditionsarecomplex,poorworkingenvironment,producecomplexvibrationinteractionhookoftenaffectedbyliftingandunloading,etc.undertheimpactloadtrip.Therefore,thehookdyn
6、amiccharacteristicsandvibrationresponsecharacteristicsparticularlysignificantforimprovingsystemperformance,modalanalysiscangetthenaturalfrequenciesandcorrespondingvibrationmodesofthehooksystem,therelativedistributionofeachpartofthebodycanshowthatthevibratio
7、namplitudeofdifferentnaturalfrequencies,vibrationcharacteristicsofamachineforanalysis.Avoidtheresonanceandharmfulvibrationofthedrillingsystematwork.ResponsefromtheQpoint.Ifthequalityofthisfalsematrix,stiffnessmatrix,dampingmatrixandfrequencyresponsefunction
8、matrixofasymmetricmatrix.2basictheoryofmodalanalysisTheessenceofmodalanalysis,isakindofcoordinatetransformation,21.Thepurposeistodescribetheresponsevectorsdescribedinthephysicalcoordinatesystemintheso-
