简介：中国南安普顿刚有座著名的“寻亲舱”。“寻亲舱”是由第二次世界大战期间一艘军舰改装成的。二战期间，

简介：BasedonthetraditionalSmoothedParticleHydrodynamics(SPH)algorithm,thelinked-listsearchalgorithmcombinedwiththevariablesmoothinglengthandsquaresupportdomainwasputforwardtoimprovethecalculationefficiencyandguaranteethecalculationaccuracy.Thephysicalprocessofhighvelocityfragmentimpactonabroadsideliquidcabinwasprogrammedforsimulation.ThenumericalresultsagreedwellwiththoseofthegeneralsoftwareANSYSAUTODYN,whichverifiestheeffectivenessandfeasibilityofthenumericalmethod.Fromtheperspectiveoftheouterplatethicknessoftheliquidcabin,thewidthoftheliquidcabin,andincidentangleofthefragment,theinfluenceoftheseparametersonprotectivemechanismswasanalyzedtoprovideabasisforprotectivedesignofabroadsideliquidcabin.Resultsshowthattheinfluenceofouterplatethicknessisnotobvious;therefore,theconventionaldesigncanbeadoptedinthedesignoftheouterplate.Thewidthoftheliquidcabinhasagreatinfluenceontheresidualvelocityofthefragmentandthewidthoftheliquidcabinshouldbedesignedtobeaswideaspossibleunderthepremiseofmeetingotherrequirements.Thereisacertainincidentangleinwhichthevelocityattenuationofthefragmentismostobvious,andthehigh-pressurezoneneartheinnerplateisasymmetric.Theinnerplateofliquidcabinshouldbestrengthenedaccordingtothehullform,principaldimensions,andvulnerablepoints.

简介：2015年7月30日，招商局能源运输股份有限公司（招商轮船）与淡水河谷航运新加坡公司（淡水河谷）达成“船舶买卖协议”。此次协议的签署，是落实今年5月19日李克强总理访问巴西期间双方签署的“深化战略合作框架协议”的具体举措。根据协议安排，招商轮船将以总价4．48亿美元收购四艘淡水河谷拥有的40万吨级超大型矿砂船，预计整个交易将于今年9月完成。

简介：我们相信中国,相信中国市场的未来,希望用高效而有竞争力的方式为中国市场提供产品。

简介：大型水面舰船的防护舱壁需要设计成工作在薄膜应力状态下，利用能量法推导了在爆炸荷载作用下防护舱壁塑性大变形的计算公式、探讨了防护舱壁的最大承载能力，对防护舱壁的设计要求进行了讨论，与国外发表的有关试验结果进行了计算比较，结果表明该方法具有一定的应用价值。

简介：灵便船型在大西洋航行运营过程中，往往航次之间做承载的货种不同，甚至会遇到船舶货舱中脏货与清洁货的衔接转换，这给船舶的洗舱工作带来了难度，也给验舱工作带来了验舱不通过的风险。通过分析船舶备舱的不同标准，结合工作中的实例，研究大西洋常见脏货的备舱措施，如石油焦、水泥、硫磺、盐等货种如何进行备舱达到船舶装粮标准，以便船舶顺利通过验舱。

简介：Toprovideasimulationsystemplatformfordesigninganddebuggingasmallautonomousunderwatervehicle’s(AUV)motioncontroller,asix-degreeoffreedom(6-DOF)dynamicmodelforAUVcontrolledbythrusterandfinswithappendagesisexamined.Basedonthedynamicmodel,asimulationsystemfortheAUV’smotionisestablished.ThedifferentkindsoftypicalmotionsaresimulatedtoanalyzethemotionperformanceandthemaneuverabilityoftheAUV.InordertoevaluatetheinfluencesofappendagesonthemotionperformanceoftheAUV,simulationsoftheAUVwithandwithoutappendagesareperformedandcompared.TheresultsdemonstratetheAUVhasgoodmaneuverabilitywithandwithoutappendages.

简介：基于超过130年的创新历史与全球研发团队,ABB技术全面覆盖电力和工业自动化价值链。

简介：Rigidblockingmassesarelocatedinthetypicalbasestructureofapowercabinbasedontheimpedancemismatchprinciple.Bycombiningtheacoustic-structuralcouplingmethodandstatisticalenergyanalysis,thefull-bandvibrationandsoundradiationreductioneffectofvibrationisolationmasseslocatedinabasestructurewasresearched.Theinfluenceoftheblockingmass’cross-sectionsizeandshapeparametersandthelayoutlocationofthebaseisolationperformancewasdiscussed.Furthermore,theeffectivenessofrigidvibrationisolationdesignofthebasestructurewasvalidated.Theresultsshowthatthemediumandhighfrequencyvibrationandsoundradiationofapowercabinareeffectivelyreducedbyablockingmass.Concerningweightincrementandsectionrequirement,suitablyincreasingtheblockingmasssizeandsectionheightandreducingsectionwidthcanresultinanefficiency-costratio.