共查询到20条相似文献,搜索用时 31 毫秒
1.
IntroductionThereareoftensomestructuresorcomponentswhichcanonlytransferonespecialformofstress,suchasthecablewhichcanonlybeusedtotransferthetensionstressandthecontactcomponentwhichcanonlytransferthepressure.Ingeneral,suchproblemsareoftencalledtheunilat… 相似文献
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IntroductionThemixingflowfieldresultingfromasonicgaseousinjectioninjectedtransverselyintoasupersonicfreestreamisencounteredinmanyfieldssuchasrocketmotorthrustvectorcontrolsystems,supersoniccombustion ,high_speedflightvehiclereactioncontroljets,andgas_t… 相似文献
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On the Bending, Vibration and Stability of Laminated Rectangular Plates with Transversely Isotropic Layers 总被引:4,自引:1,他引:3
IntroductionThestaticsanddynamicsofrectangularplateshavealwaysbeenofparticularresearchinterestinsolidmechanics.Inparticular,theemergenceofnewmaterialsandnewstructureshasbroughtoutendlessvitalforceintothestudy .Itiswell_knownthattheclassicalplatetheoryb… 相似文献
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IntroductionInrecentyears,withtremendousdevelopmentofparallelcomputers,theproblemofhowtoconstructeffectivedomaindecompositionparallelalgorithmsforlinearsystemarisingfromthefiniteelementdiscretizationhasbecomethefocusinthefieldofscientificcomputational… 相似文献
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IntroductionDuetotheintrinsiccouplingcharacteristicsbetweenelectricandelasticbehaviors,thatis,appliedmechanicalloadingproduceselasticdeformation ,aswellaselectricfield ,andconverselyelectricfieldcangiverisetoelasticdeformation ,piezoelectricmaterialshave… 相似文献
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IntroductionThestudyofsymmetryandconservedquantityofmechanicalsystemisanimportanttopicinmathematics,mechanicsandphysics .ThemoderntheoriesofsymmetryandconservedquantityofmechanicalsystemincludeNoethersymmetrytheoryandLiesymmetrytheory .In 1979M .Lutzkyando… 相似文献
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IntroductionSincethespecialsuperiorityofartificialneuralnetworkstechnologyinvariousengineeringtechniquesfields,suchasoptimization ,associativememories,patternrecognition ,signalprocessingandautomaticcontrol,therehasbeenincreasinginterestintheinvestigati… 相似文献
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Dynamical Stability of Viscoelastic Column with Fractional Derivative Constitutive Relation 总被引:1,自引:0,他引:1
IntroductionMoreandmoreproblemsinscienceandengineeringhaveconcernedthestabilityanalysisoftheviscoelasticstructuresduetotheirbroadapplications .In [1]CederbaumandMondappliedthemultiple_scalesmethodtotreatstabilityofaviscoelasticcolumnunderaperiodicaxiall… 相似文献
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Computer Simulation of Non-Newtonian Flow and Mass Transport Through Coronary Arterial Stenosis 总被引:1,自引:1,他引:0
IntroductionThemostobviouscharacterofatherosclerosisisthelocalintimalaccumulationoflow_densitylipoprotein(LDL) ,theincreaseofthefiberaltissueandthestenosis.Ononehand ,itisfoundthatthediseaseoftenoccursatthecomplexgeometryregion ,suchasbifurcationzone,cure… 相似文献
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Itisinrecentyearsthatthedamagemechanicsissuccessfulinstudyingthefatigueproblems.Thekeytothismethodistodefineanappropriatedamagevariablewhichhasaclearphysicalmeaningandshouldbemeasuredbyasimpleexperimentalprocedure,andthevariablecanbeusedtoestablished… 相似文献
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Saddle_nodebifurcationoftenoccursindissipativenonlineardynamicsystemsubjectedtoperiodicexternalexcitation,anditsexistencewillaffectthedynamicbehaviorsofthesystemgreatly.Itwillactasajumpphenomenoninpractice[1].Ifthehysteresiscancoexistwiththejumpinthe… 相似文献
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IntroductionTheoilformationinsedimentbasins ,itsdisplacement,transportandaccumulation ,andthefinalformationofoildepositshavebeenoneofthekeyproblemsintheexplorationofoil_gasresources.Howhasoilbeenaccumulatedinthepresentloopaccordingtothemechanicsofimmisc… 相似文献
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IntroductionDuetothepiezoelectricmaterials’extensiveapplicationsinsmartstructures,itisveryimportanttoprobeintotheirmechanismasdistributionsensorsandactuators[1].Asitisdifficulttofindananalyticalsolutiontotheelectric_mechanicalcouplingproblem,thenumerica… 相似文献
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IntroductionHowtheintensionandmoduleofsteelfibrereinforcedconcrete (SFRC)dependsonitsconstituentpropertiesandcontentisaprincipalproblemtopredictmacro_mechanicspropertiesofSFRC,thekeyconsistsintheconfirmationofstressdistribution .Interfacialstresstransfe… 相似文献
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Controllingchaoshasdrawnincreasingattentionbecauseofitstheoreticalimportanceandpossibleapplications,andmuchprogresshasbeenachieved[1~4].Theexactlinearizationisanimportantapproachtoanalyzeanddesignnonlinearcontrolsystems,andhasbeenemployedtocontrolcha… 相似文献
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《应用数学和力学(英文版)》2002,23(11)
1 .AppliedMathematicsandMechanics (AMM )isacomprehensivemechanicalandmathematicaljournalcarryingoriginalpapersonmechanicsandmathematicalmethodsinmechanicsaswellasappliedmathematicsrelevanttoneotericmechanics.2 .AMMpublishesonevolumeannuallyconsistingof 1 2i… 相似文献
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IntroductionThetwo_phasedriveninporousmediaisanimportantsubjectofwideinterdisciplinaryconcern ,suchaspetroleumindustry ,subterranean ,chemicalprojectetc..It’sverydifficultifweadoptnumericalintegralmethodforthecaseofmultiphaseandmulticomposition ,thecruxof… 相似文献
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THE CONSERVATION LAW OF NONHOLONOMIC SYSTEM OF SECOND-ORDER NON-CHETAVE''''S TYPE IN EVENT SPACE 总被引:1,自引:0,他引:1
方建会 《应用数学和力学(英文版)》2002,23(1)
IntroductionConservationlawofmechanicalsystemnotonlyhasimportanceinmathematicsbutalsorevealsprofoundphysicallaw .In 1 91 8,basedoninvarianceofHamilton’sprincipleunderinfinitesimaltransformation ,theconservationlawofmechanicssystemwasstudiedbyGermanscientis… 相似文献
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IntroductionDuetotheextensiveapplicationsofpiezoelectricmaterialsinsmartstructures,itisveryimportanttoprobeintotheirmechanismasactuatorsandsensors[1].Oneofthefirstimportantstudiesinvolvingthemodelingoftheperformanceofpiezoelectricactuatorswhicharesurfa… 相似文献
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IntroductionDuetotheirintrinsicelectromechanicalcouplingproperties,piezoelectricceramicshavebeenextensivelyusedindesignofvariouselectronicandelectromechanicaldevicessuchassensorsandactuators.Inrecentyears,mechanicalanalysisofdislocations ,cracks,cavitie… 相似文献