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231.
On equation of discrete solid particles' motion in arbitrary flow field and its properties 总被引：1，自引：0，他引：1
ＩｎｔｒｏｄｕｃｔｉｏｎＳｏｌｉｄｌｉｑｕｉｄｔｗｏｐｈａｓｅｆｌｏｗｌｉｅｓｅｘｔｅｎｓｉｖｅｌｙｉｎｍｏｄｅｒｎｉｎｄｕｓｔｒｙａｎｄｅｎｇｉｎｅｅｒｉｎｇｐｒａｃｔｉｃｅ.Ｔｈｅｔｅｃｈｎｏｌｏｇｉｅｓｏｆｃｏｎｔｒｏｌｌｉｎｇｏｆｓｏｌｉｄｌｉｑｕｉｄｔｗｏｐｈａｓｅｆｌｏｗａｒｅｕｓｕａｌｌｙｖｅｒｙｃｒｉｔｉｃａｌｉｎｍａｎｙｉｎｄｕｓｔｒｉａｌｅｑｕｉｐｍｅｎｔ,ｍａｎｕｆａｃｔｕｒｉｎｇｐｒｏｃｅｓｓｅｓａｎｄｄｅｓｉｇｎｓｏｆｅｎｇｉｎｅｅｒｉｎｇ.Ａｓａｎｉｍｐｏｒｔａｎｔｔｈ… 相似文献
232.
ＩｎｔｒｏｄｕｃｔｉｏｎＧｅｎｅｒａｌｉｍｐｌｉｃｉｔｍｅｔｈｏｄｓ (ＦｕＤ .Ｘ .[1],Ｈｉｒｓｃｈ[2 ])ｃａｎｂｅｗｒｉｔｔｅｎａｓＩｍｐｌｉｃｉｔＰａｒｔ =ＥｘｐｌｉｃｉｔＰａｒｔ . (1 )ＩｔｈａｓｂｅｅｎｐｒｏｐｏｓｅｄｂｙＭａｃＣｏｒｍａｃｋ[3]ｔｈａｔｍｏｄｅｒｎｉｍｐｌｉｃｉｔｍｅｔｈｏｄｓｃａｎｂｅｗｒｉｔｔｅｎａｓＮｕｍｅｒｉｃａｌＰａｒｔδｉＵ =ＰｈｙｓｉｃａｌＰａｒｔ . (2 ) Ｔｈｅｐｈｙｓｉｃａｌｐａｒｔｒｅｆｌｅｃｔｓｔｈｅｃｈａｎｇｅｒｕｌｅｏｆｐｈｙｓｉｃａｌｐａｒａｍｅ… 相似文献
233.
Nonlinear stability of truncated shallow conical sandwich shell with variable thickness 总被引：2，自引：0，他引：2
ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｒｅｃｅｎｔｙｅａｒｓ,ｗｉｔｈｔｈｅｅｓｓｅｎｔｉａｌａｄｖａｎｔａｇｅｓｏｆｌｉｇｈｔｗｅｉｇｈｔａｎｄｈｉｇｈｒｉｇｉｄｉｔｙ ,ｓａｎｄｗｉｃｈｐｌａｔｅｓａｎｄｓｈｅｌｌｓｈａｖｅｂｅｅｎｕｓｅｄａｓａｎｉｍｐｏｒｔａｎｔｐａｔｔｅｒｎｏｆｓｔｒｕｃｔｕｒｅｅｌｅｍｅｎｔｓｉｎａｅｒｏｎａｕｔｉｃａｌ,ａｓｔｒｏｎａｕｔｉｃａｌａｎｄｎａｖａｌｅｎｇｉｎｅｅｒｉｎｇ .Ｔｈｅｒｅｆｏｒｅ ,ａｃｏｎｓｉｄｅｒａｂｌｅａｍｏｕｎｔｏｆｒｅｓｅａｒｃｈｈａｓｂｅｅｎｃｏ… 相似文献
234.
ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｆｉｎｉｔｅｃｏｖｅｒｔｅｃｈｎｉｑｕｅｓ,ｓｉｍｉｌａｒｔｏｔｈｅｃｏｎｃｅｐｔｉｏｎｏｆｆｉｎｉｔｅｃｏｖｅｒｕｓｅｄｉｎｍａｎｉｆｏｌｄａｎａｌｙｓｉｓｏｆｍｏｄｅｒｎｍａｔｈｅｍａｔｉｃｓ,ａｒｅｉｎｔｒｏｄｕｃｅｄｉｎｔｏＮｕｍｅｒｉｃａｌＭａｎｉｆｏｌｄｍｅｔｈｏｄ (ＮＭＭ)ａｎｄｔｈｅｆｉｎｉｔｅｃｏｖｅｒｓｃｏｎｓｉｓｔｏｆｍａｔｈｅｍａｔｉｃａｌｃｏｖｅｒｓａｎｄｐｈｙｓｉｃａｌｃｏｖｅｒｓｗｈｉｃｈｃａｎｂｅｓｅｐａｒａｔｅｄ .ＴｈｅＮＭＭｉｓｃｏ… 相似文献
235.
The optimality Kuhn-Tucker condition and the wolfe duality for the prein-vex set-valued optimization are investigated. Firstly, the concepts of alpha-order G-invex set and the alpha-order S-preinvex set-valued function were introduced, from which the properties of the corresponding contingent cone and the alpha-order contingent derivative were studied. Finally, the optimality Kuhn-Tucker condition and the Wolfe duality theorem for the alpha-order S-preinvex set-valued optimization were presented with the help of the alpha-order contingent derivative. 相似文献
236.
IntroductionThediscoveryofthefirstcarbonnanotubes[1]hasattractedwideattentionandstimulatedextensivestudies[2 - 5 ].Thestudiesshowedthatthecarbonnanotubesexhibitsuperiormechanical,electronicandchemicalproperties.Onthemechanicalbehavior,thecarbonnanotubespossessexceptionallyhighstrength ,stiffnessandelasticmodulus.Theestimatemodulusofthecarbonnanotubemayreachashighas 1TPa.Itisthelargestofallknownmaterials.Thestrengthorstiffnessishigherthananyknownfiber[3].Thecarbonnanotubeareusedascompositemat… 相似文献
237.
IntroductionRecently,compositestructureshavereceivedwideapplicationsinmodernindustriesincludingastronavigation ,aviation ,petroleumandchemicalindustry ,etc.However,thiskindofmaterialsgenerallyhavethepropertiesofviscoelasticitywiththeapparentcreepphenomenonandrelaxationbehaviors.Moreover,variousdamagewillemergeinthestructuresundertheactionofloading ,temperatureandenvironment.Damagemakesthemechanicalbehaviorsdeteriorategraduallybeforethefailure .Damageeffectswillsoftenthestiffnessofthestructure… 相似文献
238.
IntroductionRecently ,theinterphaseincompositeshasattractedtheattentionofmanyresearchers[1- 7].Someinterphasesareproducedbydesignandothersbychemicalreactionsinfabricatingcomposites.Fromtheviewpointofmechanicsofcompositematerials,oneofthefundamentalproblemsofcompositeswithinterphasesistopredicttheeffectivemoduli.Therearemanymethodsforpredictingeffectivemoduliofcomposites,suchasgeneralizedself_consistentmethod(GSCM) ,compositesphereandcompositecylindermodels (CCAandCSA)andIDDestimate ,etc … 相似文献
239.
1 IntroductionandProblemEductionRecently,thestudiesofthestabilityforcellularneuralnetworks (CNNs)anddelayedcellularneuralnetworks (DCNNs)haveattractedattentionsofresearchersandseveralimportantresultshavebeenobtained .MostpapersdealtwithcompletelystableCNNsandDCNNsthataresuitableforimageprocessingapplications.CNNshavebeenwidelyappliedtoimageprocessing ,toprocessmovingimages,onemustintroducedelaysinthesignalstransmittedamongthecells.Buttimedelaysmayleadtoanoscillationphenomenonand ,furt… 相似文献
240.
IntroductionTheMichell’s[1]theoryforoptimizingstructuraltopologyforstressconstraintsunderoneloadconditionplaysanimportantroleinstructuraloptimizationfield .TheoptimumstructuresbasedonsuchtheoryarecalledasMichelltruss,orleast_weighttruss.Subsequently ,thistheorydevelopedgreatlyinmanyaspects[2 - 8].ItisprovedthatMichelltrussisidenticalwiththeleast_weighttrussforcomplianceconstraints.TheMichelltrussesundersomeloadcasesweregainedbyanalyticalmethod[8- 10 ].Michelltrussisestablishedbasedonstrict… 相似文献