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1.
IntroductionTwo_degree_of_freedomsystemshavingcubicnonlinearitiesareextensivelyusedinphysics,mechanics.Forexample :thelarge_amplitudevibrationsofstrings,beams,membranesandplates ,dynamicvibration_isolationsystems ,dynamicvibrationabsorbers,themotionofsphe… 相似文献
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IntroductionHowtheintensionandmoduleofsteelfibrereinforcedconcrete (SFRC)dependsonitsconstituentpropertiesandcontentisaprincipalproblemtopredictmacro_mechanicspropertiesofSFRC,thekeyconsistsintheconfirmationofstressdistribution .Interfacialstresstransfe… 相似文献
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IntroductionThetransientanalysisfor 3_Delastodynamiccrackproblemsisanimportantcontentinfracturemechanics.Becauseofthedifficultiesoftheproblems,thecalculationofDSIFfor 3_Dcrackisaproblemunsolvedcompletelyuptothepresent.Chen[1]firstlyusedthefinitedifference… 相似文献
4.
张荣业 《应用数学和力学(英文版)》2001,(4)
IntroductionInthispaper,wediscussnon_stationaryHamiltonianmechanics .Hamiltonianmechanicsisanimportantpartyofanalyticalmechanics[1].ThestationaryHamiltonianmechanicsisestablishedonthecotangentbundleoftheconfigurationspace—Riemannianmanifoldofmotionalsys… 相似文献
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IntroductionOfallthefiber_reinforcedcompositematerials,theshort_fibercompositematerialnotonlystrengthensthematrixbutavoidsdefectionsofthelong_fibercompositematerialaswell.Themicro_mechanicsaboutitsuchasfracture ,fatigueanddamageisverycomplex .Intheprevi… 相似文献
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IntroductionTheproblemofgivendifferentialequationandseekingitsequivalentHamiltonianiansystembelongstoinverseproblemofanalyticalmechanics,andthelatterisoneofprimeproblemsinclassicalmechanics.ThefamousPoincare_CartonproblemistogettheHamiltonianianregula… 相似文献
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何吉欢 《应用数学和力学(英文版)》2001,22(9):989-996
IntroductionIn 50’s,greatprogresshadbeenmadeontheresearchofvariationalprincipleinsolidmechanicswithHu_Washizugeneralizedvariationalprinciple(GVP) [1]asmilestone ,andinfluidmechanicswithC .C .Lin’sconstrains[2 ]asmilestone .In 80’s,ChienWei_zangdeducedamoregeneral… 相似文献
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IntroductionThetheoryonPoincar啨_Cartanintegralinvarianthasfounditsimportantapplicationsinphysicsandmechanics.However,ithasbeenacceptedthatthetheoryisonlysuitableforHamiltoniansystemsandintegralinvariantsdonotexistfornon_HamiltoniansystemswhichadmitintegralvariantsofPoincar啨_Cartan’stypeinstead[1- 3].SomeextensionsofPoincar啨_Cartanintegralinvariantsaregivenin… 相似文献
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IntroductionSincefiniteelementanalysisprogramsdealwiththetheoriesandmethodsofthreefieldsofmechanics,appliedmathematicsandcomputerscience,theyarecomplicatedanderror_prone .Duringdevelopmentpeopleallthroughseekthemethodtoimproveprograms.Theobject_oriente… 相似文献
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张英世 《应用数学和力学(英文版)》2000,21(7):783-790
IntroductionVibrationsofsteppedthinrectangularplateshavebeenresearchedbymechanicalworkers.ErcoliandLauraanalyzedvibrationsoftwo_stepthinrectangularplates[1],ZhangYingshietalstudiedvibrationsofn_stepone_waythinrectangularplatesonWinkler’sfoundation[1],ofn… 相似文献
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张荣业 《应用数学和力学(英文版)》2001,(4)
IntroductionInthepaper (Ⅰ ) (see:AppliedMathematicsandMechanics (EnglishEdition) ,2 0 0 0 ,2 1 (7) :82 5-83 5) ,wehaveestablishedthedynamicsinNewtonian_Riemannianspace_time,andgiveitsapplicationtoHydromechanics.ThereisGalileo’sprincipleofrelativityinClassicalNewton’smecha… 相似文献
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IntroductionDuetothepiezoelectricmaterials’extensiveapplicationsinsmartstructures,itisveryimportanttoprobeintotheirmechanismasdistributionsensorsandactuators[1].Asitisdifficulttofindananalyticalsolutiontotheelectric_mechanicalcouplingproblem,thenumerica… 相似文献
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IntroductionInrecentyears,agreatdealofattentionhasbeendirectedtowardsfullcoupledthermo_hydro_mechanicalanalysisindeformingporousmediaduetoextractionofundergroundfluids(water,petroleum ,naturalgas)inreservoir,environmentandconstructionengineering (Lewisan… 相似文献
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Modeling and analysis of a coupled rigid-flexible system 总被引:1,自引:0,他引:1
IntroductionManymechanicalsystemssuchasrobotmanipulator,turbineblades,helicopterpropellerandman_madesatellitewithflexibleattachmentsarecomposedofrigidandflexiblebodies.Theyarecalledcoupledrigid_flexiblesystems.Correctpredictionsofthebehaviorofflexibl… 相似文献
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IntroductionIt’sknownthatinnumericalapproximationoffirst_orderhyperbolicequations,theuseofadaptivefiniteelementmethods (see [1 ] )hasbeenexpandedtomanyfieldssuchascomputationalflowmechanics,thermalanalyses,electricalengineering ,etc.Theh_versionadaptivefini… 相似文献
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IntroductionTostudypotentialsandchargedensitiesofatomsinquantummechanics,itissummedupassolvingSchrdingerequationwithwavefunctionψ(r):-122 V(r)ψ(r)=Eψ(r),(1)|ψ(0)|<M,|ψ(r)||r|→∞=0(2)andthecruxofthematterisgoingtodetermineV(r).Thus,theknownThomas_Fermiequation,obtainedi… 相似文献
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IntroductionItiswell_knownthatpiezoelectricmaterialsproduceanelectricfieldwhendeformedandundergodeformationwhensubjectedtoanelectricfield .Thecouplingnatureofpiezoelectricmaterialshasattractedwideapplicationsinelectric_mechanicalandelectricdevices,suc… 相似文献
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IntroductionInsoilmechanics,theproblemsdealingwithstressinfoundationsareusuallyreferredastheBoussinesqsolutionsandtheCerrutiones (Love[1 ] ;Lure[2 ] ) .Furtherinvestigation (Bardew[3 ] ;Gibson[4 ] )tookthefoundationasapproximationoftransverselyisotropichalf_space .M… 相似文献
19.
黄再兴 《应用数学和力学(英文版)》1999,(7)
IntroductionAsageneralizationoftheclasicalfieldtheory,nonlocalfieldtheorycanbeusedasthetheoreticalbaseinmacro_micromechanicsb... 相似文献
20.
Investigation of the Scattering of Harmonic Elastic Waves by Two Collinear Symmetric Cracks Using the Non-Local Theory 总被引:1,自引:1,他引:0
IntroductionThelastfourdecadeshavewitnessedtheinaugurationofanoveltheoryofmaterialbodies,namedthenon_localmechanics.ThiswasdoneprimarilyduetotheeffortsofEdelen[1],Eringen[2 ],GreenandRivlin[3].Accordingtothenon_localtheory ,thestressatapointXinabodydependsno… 相似文献