简介：Thesimulationofthewholeship-bridgecollisionprocesscanbeeffectivelycarriedoutbynonlineardynamicfiniteelementmethod.Basedonthesimpledescriptionofthetheory,ascenarioofa40000DWToiltankercollidingwithabridgeacrosstheYangtzeRiverisdesignedforsimulation.Thetechnologyofstructuremodelingandthedeterminationofrelatedparametersareintroduced.Thedeformationofthebulbbow,thehistoryofcollisionforcechange,theexchangeofcollisionenergyandthestressdistributionofthebridgepieraredescribedindetail,whichareofgreatvaluetobridgede-signandbridgepierdamageestimation,Somemechanicalcharactersintheprocessofship-bridgecollisionaredescribed.Moreaccurateresultscanbeproducedbyfiniteelementmethodthanthatbyempiricalformulasandsimplifiedanalyticalmethods.

简介：为对在装载的轮船影响下面的桥结构的动态需求评价，收养与合理精确性允许快速的分析的分析模特儿可能是谨慎的。此处，一个非线性的动态宏元素被建议并且实现了确定桥基础的需求使遭到了装运碰撞。在建议非线性的宏元素，在平行的一个有弹性塑料的弹簧和缓冲筒的联合被采用与紧张率效果描述轮船鞠躬的机械行为。用建议宏元素基于分析模型，在5000死重吨位(DWT)下面的一个典型基础轮船碰撞被讨论。我们的分析显示用非线性的宏元素的结构的回答从高分辨率模型同意结果，但是建议方法的效率和可行性在实际应用程序显著地增加。而且，在一些当前的设计代码(AASHTO，JTGD60-2004，和TB10002.1-2005)之间的比较和发达动态分析方法建议这些设计代码可以被改进，到至少在结构的需求上考虑动态扩大的效果。

简介：之前，我们在WordTown认识了陆上、空中的主要交通工具——bus、train和plane。这次，我们迎来了水上大家族——ship和它的兄弟姐妹!

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简介：你听说过童谣背后的故事吗？你想知道它是怎么来的吗？让我们一起来看看吧!

简介：Rainbow是个神奇的自然现象，它的出现总是给人惊喜和愉悦，所以RainbowBridge将是一个传递惊喜和欢乐的桥梁。通过RainbowBridge，你可以把你的祝福送到每个角落。你的父母、你的老师、你的朋友将在这里接收到你对他们的关心和帮助。

简介：

简介：Rainbow是个神奇的自然现象，它的出现总是给人惊喜和愉悦，所以RainbowBridge将是一个传递惊喜和欢乐的桥梁。

简介：这份报纸论述处理鞠躬的效果的试验性的调查的结果悬于发货的数量上的延期在在常规头波浪进展的轮船的情况下在前甲板上流水。执行这调查，一系列免费跑的测试在使用一艘多种用途的货物轮船的一个试验性的模型确定的常规波浪被进行装运水的数量。测试在五个弓上被执行悬于有波长和轮船的几联合的变体加速条件。装运水的数量被象波长，轮船速度，和鞠躬形状那样的一些参数以overhang扩展影响，这被观察。结果显示出overhang延期的重要影响，它与鞠躬闪光形状被联系，在水发货的出现上。这些结果包含联合到来的常规波浪和模型速度。

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简介：Shipcollisionaccidentsarerareeventsbutposehugethreattohumanlives,assets,andtheenvironment.Manyresearchershavesoughtforeffectivemodelsthatcomputeshipstochasticresponseduringcollisionsbyconsideringthevariabilityofshipcollisionscenarioparameters.However,theexistingmodelswerelimitedbythecapabilityofthecollisioncomputationalmodelsanddidnotcompletelycapturecollisionscenario,andmaterialandgeometricuncertainties.Inthispaper,anovelframeworktoperformancecharacterisationofshipsincollisioninvolvingavarietyofstrikingshipsisdeveloped,bycharacterisingthestructuralconsequenceswithefficientresponsemodels.Adouble-hulloilcarrierischosenasthestruckshiptodemonstratetheapplicabilityoftheproposedframework.Responsesurfacetechniquesareemployedtogeneratethemostprobableinputdesignsetswhichareusedtosampleanautomatedfiniteelementtooltocomputethechosenstructuralconsequences.Theresultingpredictor-responserelationshipsarefittedwithsuitablesurrogatemodelstoprobabilisticallycharacterisethestruckshipdamageundercollisions.Asdemonstratedinthispaper,suchmodelsareextremelyusefultoreducethecomputationalcomplexityinobtainingprobabilisticdesignmeasuresforshipstructures.Theproposedprobabilisticapproachisalsocombinedwithavailablecollisionfrequencymodelsfromliteraturetodemonstratetherisktolerancecomputations.

简介：ADRNN(diagonalrecurrentneuralnetwork)anditsRPE(recurrentpredictionerror)learningalgorithmareproposedinthispaper.UsingofthesimplestructureofDRNNcanreducethecapacityofcalculation.TheprincipleofRPElearningalgorithmistoadjustweightsalongthedirectionofGauss-Newton.Meanwhile,itisunnecessarytocalculatethesecondlocalderivativeandtheinversematrixes,whoseunbiasednessisproved.Withapplicationtotheextremelyshorttimepredictionoflargeshippitch,satisfactoryresultsareobtained.Predictioneffectofthisalgorithmiscomparedwiththatofauto-regressionandperiodicaldiagrammethod,andcomparisonresultsshowthattheproposedalgorithmisfeasible.

简介：THESEoldZhuangminorityfarmers'houseshavethreestories-pigs,hensandotherfarmanimalsarekeptonthefirstfloor,familymembersliveonthesecondandgrainandcornarestoredonthethird.'It'saprettysmartdesignbecauseit

简介：把在一般计算液体动力学代码FLUENT6.3.26嵌入的二阶段的模型基于液体的体积，粘滞有在一艘可伸缩模型的KRISO容器轮船(KCS)附近的免费表面的流动数字地首先被模仿。然后与一个rigid-lid-free-surface方法，在水下流动地基于混合被计算模仿的多相的模型冒泡在KCS壳附近醒来。二方程的骚乱模型和雷纳兹应力建模的可实现的k-被用来在轮船上分析骚乱模型的效果冒泡醒来。空气乘火车模型，它相对免费表面的正常速度坡度，和解决的方法被品质上验证合理计算结果。

简介：Inthispaperweshowthcmethodofenergyinpartwithwhichwecangetthemodelofrandomwave,andpredicttherollmotionofunstabilizedshipandstabilizedshipusingthewavemodel.Thecontrolparametersoffinstabilizeraredeterminedaccordingtotheperformanceindex.Thesimulationofthesystemisalsomadeinthispaper.Thecomparisonofthesimulationwithrealshipindicatesthatthemethodcanbeusedinthepredictionofrollmotionofastabilizedshipinrandomwave.

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简介：ThereisariverflowinginfrontofBainamVillageinDeqengTownofDarzeCounty.Becauseschools,infirmaries,supplyandmarketingcooperativesandmostofthefarmlandareallontheothersideoftheriver,anyonewhowantedaccesshadtoundertakeaninconvenient12-kindetour.Mattersbecameevenworseintherainyseason,whenthewaterlevelrose.

简介：THEpublishingindustryisflourishingandbecomingmoreandmoredynamicinChinatoday.Amongthe500pub-lishinghouses,thepeople'sEducation

简介：Thelogicalderivativesofp-adiccopy-shiftandshift-copygeneralizedBridgefunctionsaregiveninthispaper.Whenpequals2,theyareexactlythelogicalderivativesofnaturalorderingcopy-shiftandcopy-shiftBridgefunctions.

简介：Thispapersummarizesthedesignequationsforlocalscourdeptharoundbridgeabutmentsasproposedbydifferentinvestigators,andalsothedifferentfactors,affectingthescourdepth.Methodsfortheestimationoflocalscourdepthbasedondimensionalanalysisarealsopresented.Thedesignmethodsbasedonempiricalrelationssuchasflowdepth,flowintensity,sedimentcharacteristics,abutmentsshapeandsize,alignment,andapproachchannelgeometryarealsodiscussed.Sinceclear-waterscouristhemaximumscourdepth,theequationforclear-waterscourisrecommendedforthecomputationoflocalscourdeptharoundbridgeabutmentsforuniformlyandnon-uniformlygradedsediments.