简介：Micro-bolometerpixelisanessentialelementintheinfraredfocalplanearray(IRFPA)ofinfrareddetectors.Itsresponsetoinfraredradiationisanalyzedinthispaper.Thepixelstructureismodeledasacompositelaminatethinplatewhosesidesaremeasuredwiththethicknessfrom0.1-1μm.Itsmiddleplyisaferroelectricthinfilm.Itstopsurfaceiscoveredwithagoldorplatinuminfraredabsorber,whilethebottomsurfaceisdepositedwithplatinumorlanthanum-nickel.Meanwhilebothsurfacesareapairofelectrodes.Thetopsurfacereceivesinfraredradiationpulsessuccessively.Fortheverytinymicrobolometerpixel,itisassumedthattheinfraredradiationisuniformlydistributedontheplate.Furthermore,astheratioofthesidelengthtothethicknessoftheplateisdramaticallylarge,itisassumedthatheattransferonlytakesplaceacrossthethicknessoftheplate.Thethermal-electric-mechanicalcouplinggoverningequationsaresolvedinaformofFourierseries.Resultsofthedisplacement,temperaturevariationandelectricoutputsignalsofthemicrobolometerpixelstructureunderinfraredradiationareobtained,analyzedandcomparedwithexperimentaldata.

简介：在这份报纸，为multiferroic的三维的有限元素的明确的表达合成为它的短暂分析被开发并且实现进商业软件ABAQUS。首先，一个特殊三维的八节点的稳固的元素被设计处理用橡皮做的合成的multiferroic，压电，并且piezomagnetic材料。第二，为这个最新发达的元素的一个自定义子程序被实现进ABAQUS。最后，双性人分层的multiferroic的短暂回答合成被使用直接时间集成方法计算。二个典型磁性的潜在的信号，高斯和Ricker脉搏，被用于与刺激的各种各样的时间持续时间合成。短暂反应能被输入实质地影响的导致的电场表演发信号，它能为最强壮的电的输出被调节。

简介：Inthispaper,anunderwaterstructureismodeledasacylindricalshellwithinternalbulkheads,andclosedbyatruncatedconicalshell,anditconsistsofmetalsubstrateandsoundabsorbingcoating,whoseFGMcoreisconsidered.Supposetheinnercavityandouterspaceofthestructurearefilledwithairandfluidmediums,themechanicalresponseoftheunderwaterstructureiscalculatedwithGalerkinmethodwhiletheacousticresponseisinvestigatedbymeansoftheHelmholtzintegral.Somenumericalexamplesaregivenandtheeffectofgeometricalsizeandmaterialparametersonmechanicalandacousticresponseisdiscussed.

简介：这篇论文处理我击碎的模式在用精细的数字moiré技术的飞机压力状况下面的一张击碎的橡胶表的问题。通过四步自动化穗分析的转移阶段的方法，在笛卡儿的坐标系统的排水量地被给。由并列变换的方程，在极的坐标系统的光线、圆形的排水量分布被获得。裂缝尖端附近的排水量isoline分布和排水量向量分布被讨论。裂缝尖端附近的紧张isoline分布也在这篇论文被分析。最后，分发近为机械地裁定裂缝尖端与部门部门方法被讨论。

简介：Theseriescomposedbybeammodefunctionisusedtoapproximatethedisplacementfunctionofconstraineddampingoflaminatedcantileverplates,andthetransversedeformationoftheplateonwhichaconcentratedforceisactediscalculatedusingtheprincipleofvirtualwork.BysolvingLagrange'sequation,thefrequenciesandmodellossfactorsoffreevibrationoftheplateareobtained,thenthetransientresponseofconstraineddampingoflaminatedcantileverplateisobtained,whentheconcentratedforceiswithdrawnsuddenly.Thetheoreticalcalculationsarecomparedwiththeexperimentaldata,theresultsshow:boththefrequenciesandtheresponsetimeoftheoreticalcalculationanditsvariationallawwiththeparametersofthedampinglayerareidenticalwithexperimentalresults.Also,theresponsetimeofsteelcantileverplate,unconstraineddampingcantileverplateandconstraineddampingcantileverplatearebroughtintocomparison,whichshowsthattheconstraineddampingstructurecaneffectivelysuppressthevibration.

简介：有uncertain-but-bounded参数的结构的静态的排水量界限上的评价的顶点解决方案在这份报纸被学习。为线性静态的问题，当在僵硬矩阵和应用力量的向量有不明确的间隔参数时，静态的反应可以是间隔。基于间隔操作，顶点答案获得的间隔答案比另外的方法更精确、更可信(例如不安方法)。然而，由传统的连续计算的顶点答案方法通常需要大计算努力，特别为大结构。以便避免它大计算和许多运行时刻的劣势，它能在大规模计算被使用的并行计算在这份报纸被介绍。二种并行计算算法基于顶点答案被建议。并行计算将解决不能被传统的间隔分析方法解决的许多间隔问题。

简介：BasedontheSchaperythree-dimensionalviscoelasticconstitutiverelationshipwithgrowingdamage,adamagemodelwithtransversematrixcracksfortheunidirectionalfibrereinforcedviscoelasticcompositeplatesisdeveloped.ByusingKarmantheory,thenonlineardynamicgoverningequationsoftheviscoelasticcompositeplatesundertransverseperiodicloadingareestablished.ByapplyingthefinitedifferencemethodinspatialdomainandtheNewton-Newmarkmethodintimedomain,andusingtheiterativeprocedure,theintegral-partialdifferentialgoverningequationsaresolved.Someexamplesaregivenandtheresultsarecomparedwithavailabledata.

简介：在这篇论文，适应基因算法(统帅)被用于拓扑学优化与频率领域刺激捆绑结构。优化限制在基础加速刺激下面包括基本频率，在力量刺激下面的排水量回答和加速回答。轮盘赌车轮选择操作员，适应转线路和变化操作员被用作基因操作员。一些启发式的策略被提出指导额外的酒吧和节点的删除在上捆绑结构。三个例子证明建议方法能产出最佳结构形式和最轻的重量撤退结构当时令人满意的动态反应限制。

简介：

简介：thermoelasticity的Green-Naghdi(G-N)理论被采用就对飞机表面起作用的各种各样的来源的影响而言与虚空学习micropolarthermoelastic固体的变丑。正常模式分析被用来获得排水量部件，力量压力，联合压力，卷部分地的变化和温度分发的分析表达式。当体积来源被使用时，计算结果图形地被介绍。有或没有micropolarity效果的类型II和类型III的比较被做，结果在上下文预言了(G-N)理论。

简介：BasedontheLordandShulmangeneralizedthermoelasticitytheorywithonerelaxationtime,anisotropicsemi-infiniteplatesubjectedtoamovingheatsourcehasbeenstudiedbyemployingthefiniteelementmethoddirectlyintimedomain,whosedistributionsofnondimensionaltemperature,displacementandstressareillustratedgraphically.Theresultsshowthatthepresentmethodisaneffectiveandexactnumericaloneforsolvingthethermoelasticcouplingproblemandiscapableofovercomingthedefectsoftraditionalintegratedtransformationandinverseintegratedtransformationmethods.Atthesametime,thetemperaturestepofthethermalwavefrontisobtainedexactlyincontrastwithconventionalnumericaltransformationmethods.

简介：Ananalyticalmodelisdevelopedtoassesstheelastic-plasticdynamicresponseoffullybackedsandwichplatesunderlocalizedimpulseload.Thecoreismodeledasanelastic-perfectlyplasticfoundation.Thetopfacesheetistreatedasanindividualplaterestingonthefoundation.Theelastic-plasticanalysisforthetopfacesheetisbasedonaminimumprincipleindynamicplasticityassociatedwiththefinitedifferencetechnique.Theeffectsofspatialandtemporaldistributionsoftheimpulsiveloadingonthedynamicresponseofsandwichplatesarediscussed.Themodelcanbeusedtopredicttheimpulse-inducedlocaleffectonfullybackedsandwichplates.

简介：Thetransientthermalresponseofathickorthotropichollowcylinderwithfinitelengthisstudiedbyahighordershelltheory.Theradialandaxialdisplacementsareassumedtohavequadraticandcubicvariationsthroughthethickness,respectively.Itisimportantthattheradialstressisapproximatedbyacubicexpansionsatisfyingtheboundaryconditionsattheinnerandoutersurfaces,andthecorrespondingstrainshouldbeleast-squarescompatiblewiththestrainderivedfromthestrain-displacementrelation.Theequationsofmotionarederivedfromtheintegrationoftheequilibriumequationsofstresses,whicharesolvedbypreciseintegrationmethod(PIM).Numericalresultsareobtained,andcomparedwithFEsimulationsanddynamicthermo-elasticitysolutions,whichindicatesthatthehighordershelltheoryiscapableofpredictingthetransientthermalresponseofanorthotropic(orisotropic)thickhollowcylinderefficiently,andforthedetonationtubeofactualpulsedetonationengines(PDE)heatedcontinuously,thethermalstresseswillbecometoolargetobeneglected,whicharenotlikethoseintheonetimeexperimentswithveryshorttime.