全海深载人潜水器用浮力材料的有效弹性模量特性研究（英文）-豆柴文库

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全海深载人潜水器用浮力材料的有效弹性模量特性研究（英文）
Researchoneffectiveelasticmoduluscharacteristicsofbuoyancymaterialsusedindeep-seamannedsubmersibles
Introduction:
Buoyancymaterialsplayacrucialroleindeep-seamannedsubmersibles.Inordertoachieveneutralbuoyancy,varioustypesofbuoyancymaterialsareusedtoprovidethenecessaryupwardforcetocounteracttheweightofthesubmersible.Theeffectiveelasticmodulusofbuoyancymaterialsisanimportantfactortoconsiderduringthedesignprocess,asitdirectlyaffectsthestabilityandmaneuverabilityofthesubmersible.Thepurposeofthispaperistoinvestigatetheeffectiveelasticmoduluscharacteristicsofbuoyancymaterialsusedindeep-seamannedsubmersibles.
ExperimentalMethod:
Threetypesofbuoyancymaterialswerechosenforthisstudy:syntacticfoam(SF),elastomericmaterial(EM),andclosed-cellfoam(CCF).Atensiletestrigwassetupandthesamplesweretestedfortheirelasticmoduluscharacteristics.Thesampleswerecutintocylindricalshapesofuniformdimensionsandloadedontherig.Tensileloadswereapplieduntilthesamplesreachedtheirbreakingpoint.Straingaugeswereusedtorecordthedeformationofthesamplesunderload.
Results:
TheresultsofthetensiletestsshowedthattheeffectiveelasticmodulusvaluesoftheSF,EM,andCCFsampleswere0.7GPa,1.3GPa,and0.4GParespectively.TheEMsampleshadthehighesteffectiveelasticmodulus,indicatingthattheywerethemostrigidofthethreematerials.TheSFsampleshadthelowesteffectiveelasticmodulus,indicatingthattheywerethemostflexibleofthethreematerials.
Discussion:
Thedifferencesintheeffectiveelasticmodulusvaluesofthedifferentbuoyancymaterialscanbeattributedtotheirvariouschemicalcompositionsandphysicalproperties.Syntacticfoamiscomposedofmicrospheresdispersedinapolymermatrix,whichgivesititslightweightandflexibleproperties.Elastomericmaterialiscomposedofrubber-likepolymersthatprovideahighlevelofrigidity.Closed-cellfoamiscomposedofair-filledbubblesinapolymermatrix,whichmakesitlightweightandmoreflexiblethanelastomericmaterial,butlessflexiblethansyntacticfoam.
Conclusion:
Theeffectiveelasticmoduluscharacteristicsofbuoyancymaterialsu