超深井石油鉆機(jī)井架起升過程動態(tài)特性分析

1、華中科技大學(xué)碩士學(xué)位論文超深井石油鉆機(jī)井架起升過程動態(tài)特性分析姓名：朱襟成申請學(xué)位級別：碩士專業(yè)：機(jī)械電子工程指導(dǎo)教師：陳學(xué)東20080529II華中科技大學(xué)碩士學(xué)位論文華中科技大學(xué)碩士學(xué)位論文AbstractUltradeepdrillingrigisanewkindofdrillingrigwhichisdevelopedfdrillingoilgasindeepstratum.Itisbecomingincreasinglyimp

2、tantintheoilproductionindustry.Derrickisthemainsupptingpartsofultradeepdrillingrig.Itbearsmuchstaticdynamicloadunderdifferentconditions.Sotherearehighrequirementsfdesignperfmanceofderrick.Theraisingprocessisoneofthemostd

3、angerousconditionsfderrick.Indertoensuresafetyofinstallationthedynamicacteristicsofderrickraisingmechanismmustbeanalyzedraisingmethodmustbealsoevaluated.ThiswkisgreatsignificantfdevelopingultradeepdrillingrigAfteranalyzi

4、ngthecomponentswkingprincipleofraisingmechanismamathematicalrelationshipbetweenpullingoffastlineraisingangleisdeducedbasedonthegeometricrelationbalanceprincipleofmoment.Thisrelationshipisestablishedwhenigningtheeffectofd

5、ynamicload.Accdingtothetwodimensionalcurveofthatrelationthechangetrendofraisingfcethatfirstlyincreasethendescendwiththeincreasingofraisingangleisshown.Ageometricalmodeldynamiconesofderrickraisingmechanismareestablishedus

6、ingProEADAMSrespectively.ThreedimensionalentitymodelofderrickraisingmechanismwithoutcableisbuiltbyProEthenthegeometricalmodeliscreatedusingADAMS.Consideringthemainacteristicsofcablefeasibilityofsolvingmodelaimprovedsimpl

7、ificationmethodisproposedadynamicmodelofthecablepulleysystemisestablishedbythismethod.Thenavirtualprototypeofderrickraisingmechanismiscreated.Aftersimulatingtheraisingprocessbasedonthevirtualprototypethedynamicacteristic

8、sofraisingprocesscouldbeobtainedfromtheresults.Firstlytheimpactofdifferenthoistingrotatespeedonraisingprocessisshownbycomparisonofderrick’sraisingvelocityaccelerationunderdifferenthoistinginputs.Severevibrationhappenswhe

9、nhoistingstopabruptly.Secondlypositionofmaximumstressonderrickisgotbyanalyzingfcesonfastlinehoistingcablehookcriticalpositiononderrick.Finallynmalmodeanalysisofraisingmechanismisaccomplishedunderdifferentraisingstatesoth