自升式海洋平臺結(jié)構(gòu)動力響應(yīng)分析.pdf

1、武漢理工大學(xué)碩士學(xué)位論文自升式海洋平臺結(jié)構(gòu)動力響應(yīng)分析姓名：陸浩華申請學(xué)位級別：碩士專業(yè)：工程力學(xué)指導(dǎo)教師：吳衛(wèi)國20050301武漢理工大學(xué)碩士學(xué)位論文AbstractInthispaperwestudyaoffshorejackuppilingplatformworkingintheseaarea，andanalyzethestaticstrengthandnonlineardynamicresponseofitontheextre

2、meseaenvironmentswiththeANSYSFEMsoftwareOnthebaseoftheresultswemakefollowingdiscussofstaticanddynamiccharacteristicofiackupplatformThemajorcontentsaresummarizedasfollows：1)A3DFEMofaoffshorejack—uppilingplatformisestablis

3、hedinthispaperandthestaticstrengthandnonlineardynamicresponseofitontheextremeseaenvironmentsareanalyzedTheresultsshowthatthevalueofdynamicresponseofiack—upplatformondynamicloadisgreaterthanthestaticItmaybethankstOtheflex

4、ibifityofjack—upplatformiSgreat11lerebywecanenducetheconclusionthatthestaticstrengthanalysisisnotenol：Ighforthejackupplatformontheextremeseaenvironmentsandthedynamicresponseanalysisisnecessarily2、TheWinklerbeammodeljSuse

5、dtOsimulatepilesoildynamicinteractionThesoiliStreatedas、7l鈾lderfoundationnepileiSdisposedasbeamimbeddedinthesoil111enaccordingtogeologicinformationoftheworkingseaarea(Pyt—z，Qzcurve)，thenonlinearspringiSusedtosimulatethec

6、ounterforceofsoilAndthencomparewiththemodeoffixedendrestraint，theeffectofstructure—pile—soilmutualinteractionissystematicallystudied3)Basedonthemodelofstructure—pilesoil，thedeepthofpitchingpilehasbeenstudiedTheresultsshO

7、Wthatthemaxdisplacementisnotdiscreasingwiththedeepthofpitchingpile，onthecontraryitwillincreasingwhenreachaminimumvalueAndthevalnehassomepracticafityintheWOrk4、AlsothereatetwotypesofpileshoehasbeenstudiedinthispaperTheres

8、ultsshowthatthepileshoegreatlyenhancethestructuralstrerIgthofjackupplatformFurthermoretheharmfulnessofwavewasharealsodiscussedinthispal：IerandprotectivemeasurearebrungforwardKeywords：jack—upplatform；dynamicresponse；struc