简介：Thispaperaimsatinvestigationofthedynamicpropertiesofgravitycageexposedtowavesbyuseofanumericalmodel.Thenumericalmodelisdeveloped,basedonlumpedmassmethodtosetuptheequationsofmotionofthewholecage;meanwhilethesolutionsofequationsaresolvedbytheRunge-Kutta-Vernerfifth-orderandsixth-ordermethod.Physicalmodeltestshavebeencarriedouttoexaminethevalidityofthenumericalmodel.Theresultsbythenumericalsimulationagreewellwiththeexperimentaldata.

简介：Basedonunifiedequivalentharmonicloadingonseabedfoundationandenergyapproachsuggestedbytheauthors,thedevelopmentofdynamicporewaterpressureandstabilityofsoilfoundationforthevibrationofoceangravitystructuresexcitedbyrandomwaveloadingareanalysed.Itmaybeseenthatthepresentmethodforthestudyofdynamicproblemsofoceangravitystructuresoilfoundationsismorereasonableandconvenient.

简介：

简介：Thenonlinearcapillary-gravitywaveproducedbyaverticallyoscillatingplate,inwhichthecontact-anglemodelisconsidered,isstudiedbyuseoftheBoundaryIntegralEquationMethod(BIEM).Thepresentnumericalexperimentshowsthatthecodeisrobustandefficientformodelingthegenerationandpropagationofcapillary-gravitywaves.Itisfoundthatthewaveheightsofstationaryperiodicnonlinearwavesradiatedawayfromtheplatearedependentontheparametersinvolvedinthecontact-an-glemodel.Theeffectofthecontact-anglehysteresisandthenonlinearityofcapillary-gravitywavesonthewaveprofileisdiscussedinthepaper.

简介：ShortwavegravityanomalyiscorrelatedtoseafloortopographyinthegravityfieldofTaiwananditsadjacentseas.Gravityvaluesof200×10-5ms-2atYushangand-160×10-5ms-2atLiuqiuseatrencharerespectivelythemaximumandminimumgravityvaluesinthisarea.BouguergravityanomalyreflectsnotonlyMohointerfaceundulation,butalsofaultdistribution.TheinflexionofgradientbeltofBouguergravityanomalyisaspotliabletoearthquakes.Middlelongwavegeoidisthebestdatatoinvertcrustalthickness.Wecalculatecrustalthicknessbyusinggeoiddata,andthemaximumvalueis38km;theminimumvalueis12kminTaiwananditsadjacentseas.

简介：Inthispaper,theanalysisoftheoccurrenceandthedevelopmentoftyphoonandtropicalcycloneismadewiththeunstabletheoryofwave.Theresultindicatesthattheprimarywaveistheunstableinertia-gravitywaveintheprocessoftheoccurrenceandthedeveJopmantoftyphoonandtropicalcyclone:Theexistenceofthedeepmoistlayerandtheheatingbymoisturecondensationcanimpelandintensifytheunstabilityofthewaveandisfavourableforthereductionofthewaveenergydispersion,therefore,itisgoodfortheformationandthedevelopmentoftyphoonandtropicalcyclone,andalsocanslowdownthewavespeed.Besides,theconditionthatthechangeofthespecificvolumeofthebasicstatewithpressureislessthanthatofadiabaticstatemayalsoleadtothewaveunstability,thusmayhavecertaineffectontheoccurrenceandthedevelopmentoftyphoonandtropicalcyclone.

简介：Generally,thereliabilityofami-slidingandanti-overturningstabilityofanisolatedgravitycylinderinacertainworkingperiodcanbeevaluatedonlywhenthestatisticalpropertiesofshorttermstabilityaregivenfirst.Theauthorsusednumericalmethodtosimulatethestabilitystatefunctionofacylinderinshort-crestedsea,andfurthertogettheprobabiliticalcharacteristicsofthestructure’sstabilitybytimedomainanalysis.Theexternalloadsappearedinthestatefunctionsincludehorizontalwaveforce,liftforceandtherespectivemoments,andtheloadsarecorrelatedbyco-spectrum.Thenumericalmethodpresentedinthispapercanbeusednotonlytosolveshorttermreliabilityproblemdirectly,buttocalculateandanalysethelongtermreliabilityproblemaswell.Forcircularcylinders,anexampleofsimulationandanalysisisdisplayedinthispaper.

简介：Consideringthatatpresenttheregularwavesincommonusehavetheprofilesymmetrizedtoaverticalaxis,whicharedifferentfromactualwind-drivenseawaves,andbasedonderivinglinearwave,solitarywave,fifthorderStokeswaveandstreamfunctionwavebyusingUnifiedVariationalPrincipleofWaterGravityWave(UVPWGW),thispaperderiveswind-drivenslantingprofilewavebyusingUVPWGW.Itsfeatureisthatundertheactionofwindpressure,thewaveprofileisnotsymmetrizedtoaverticalaxis,butthatitisintheforwardslantingform.

简介：尽管尼内蒂埃斯特·理兹附近的Indo澳大利亚的板为理解新板边界的形成是重要的，它的构造问题是复杂的，他们中的大多数糟糕被知道。这份报纸基于深测术，严肃和magnetics的数据做了详细构造分析。深测术和严肃地图显示出许多褶层的词法特征，它由于在印第安人和亚洲盘子之间的碰撞与Indo澳大利亚的板的intraplate变丑有关。严肃异例显示出破裂地区的结构，它被传播的seafloor和指责的变换引起。褶层和破裂地区的特征与弥漫的板边界和重新定义的板部件将发生在Indo澳大利亚的板以内的假设一致。另外，编了磁性的数据表明磁性的线条，放弃的传播中心，向南方的山脉跳，板打手势。这些特征为重建学习区域的构造进化历史提供有用信息。磁性的异例建议变换差错的一条另外的板边界打字发展中。