共查询到20条相似文献,搜索用时 671 毫秒
1.
武建勋 《应用数学和力学(英文版)》2000,21(7):775-782
IntroductionAccordingtoLove[1],Saint_Venant’sPrinciplecanbeexpressedas:Theeffectofaself-equilibratedsystemofforcesactinginaspherewillrestrictinasmalldomainnearthesphere .Thisprincipleisthebridgebetweentheelasticitytheoryandapplication ,butithasnotbeenprov… 相似文献
2.
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
3.
钟万勰 《应用数学和力学(英文版)》2000,(12)
IntroductionH∞controltheoryhasbeenwelldevelopedsincetheDGKFpaper[1],wherethefundamentalequationsforH∞ measurementfeedbackcontrolarederivedfromtheseparationprinciple ,asinLQGcontroltheory[2~ 5 ].However,thecomputationforfinitehorizon [0 ,tf]problemandthedetermi… 相似文献
4.
IntroductionInrecentyears,researchershavebeenmadeonthevariousformulaeofD’Alembertprinciple,attentionhasbeengiventomechanicalprinciplesinthevelocityspaceandthevariationalprincipleinthevelocityspace,andthevelocityspaceofrelativisticmechanicshasbeenmade… 相似文献
5.
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
6.
SERIES PERTURBATIONS APPROXIMATE SOLUTIONS TO N-S EQUATIONS AND MODIFICATION TO ASYMPTOTIC EXPANSION MATCHED METHOD 总被引:1,自引:0,他引:1
IntroductionTheasymptoticexpansionmatchedmethodwasdevelopedonthebasisofPlandtl’sBoundaryLayersTheory[1- 3].In 1 960’slater,thevalidmatchedprincipleswereadvancedbyVanDykeandKaplun[4 ,5 ],respectively .Buttheapplicablerangeofthemethodwasrestrictedbythedifficultyth… 相似文献
7.
Nowadays,thecurrenttheoriesofplatesandshells,suchasKirchhoff’sthinplatetheoryandReissner’smoderatelythickplatetheoryetc.,aree... 相似文献
8.
IntroductionFluidsthatobeyNewton’slawofviscosityarecalledNewtonianfluids.Newton’slawofviscosityisτ=μdu/dt,whereτistheshearstressandμistheviscosity .NotallfluidsfollowtheNewtonianstress_strainrelation .Somefluids ,suchasketchup ,areshearthinning ,thatis,thec… 相似文献
9.
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
10.
IntroductionIn 1 996,Khamsi[1]establishedthehyperconvexversionofthefamousFan_KKMprincipleinhyperconvexspace .Yuan[2 ,3]obtainsomecharacterizationofKKMprincipleinhyperconvexspaces,andasapplicationsoftheirresults,somefixedpointtheoremsandmatchingtheoremsforopena… 相似文献
11.
何吉欢 《应用数学和力学(英文版)》2000,21(7):797-808
IntroductionIn 1 954,Hu[1,2 ]deducedHu_Washizuprinciplebyso_calledtrial_and_errormethod ,andin1 964 ,Chien[3]systematicallydiscussedtheLagrangemultipliermethod ,bywhichhesuccessfullydeducedHu_Washizuprinciple.Afterthatgeneralizedvariationalprinciplescanbearrivedat… 相似文献
12.
IntroductionAmajorproblemofonedimensionaldynamicsistostudytheattractorsofintervalmaps,i.e.theclassificationandstructureofattractors.FollowingMilnor’sdefinitiononattractors[1],iffisaunimodalmapwithnegativeSchwarzianderivative ,thenbyGuckenheimer’stheorem[2 ]… 相似文献
13.
IntroductionThetwo_phasedriveninporousmediaisanimportantsubjectofwideinterdisciplinaryconcern ,suchaspetroleumindustry ,subterranean ,chemicalprojectetc..It’sverydifficultifweadoptnumericalintegralmethodforthecaseofmultiphaseandmulticomposition ,thecruxof… 相似文献
14.
Subharmonic and ultra-subharmonic response of nonlinear elastic beams subjected to harmonic excitation 总被引:1,自引:0,他引:1
Thedynamicresponseproblemsofelasticstructureholdmoreandmoreinterest.Intheearly1970’s.W.Y.Tsengetal.[1,2]investigatedfixed_endedbeams.First,thesinglemodeandtwomodeswereusedtotransformpartialdifferentialcontrollingequationsintoordinaldifferentialdynami… 相似文献
15.
Minimal essential sets and essential components of the equilibria of production economies 总被引:1,自引:0,他引:1
向淑文 《应用数学和力学(英文版)》2000,21(8):909-914
IntroductionIn [1 ] ,Dierkerintroducedtheconceptofessentialequilibriaforpureexchangeeconomiesandprovedthatin‘most’pureexchangeeconomies (inthesenseofBairecategory)allequilibriaareessential.In [2 ] ,theconceptofessentialequilibriaforproductioneconomieswasfirst… 相似文献
16.
Anomalous dynamics response of nonlinear elastic bar 总被引:1,自引:0,他引:1
IntroductionInresentyears,thechaoticbehaviorofbeamssubjectedtoperiodicloadbringsmoreandmorescholars’interests.In 1 983 ,FCMoonetal.[1]studiedthechaoticmotionsofbeamsinnonlinearboundaryconditions.In 1 994 ,S .AnanthaRamuandTSSankaretal.[2 ]analyzedbifurcationandCata… 相似文献
17.
戴天民 《应用数学和力学(英文版)》2001,22(11):1231-1239
Introduction1 999isthe 90thanniversaryofthepublicationofE .F .Cosserat’sbook“TheoriedesCorpsDeformable”[1],whichwasthefoundationstoneandnowisstillaguidingmonographinthestudyofgeneralizedcontinuumfieldtheories.However,itwasnottillthepublicationofpapersofEricks… 相似文献
18.
CONVERGENCE OF SIMPLIFIED AND STABILIZED MIXED ELEMENT FORMATS BASED ON BUBBLE FUNCTION FOR THE STOKES PROBLEM 总被引:1,自引:0,他引:1
IntroductionInordertogetridoftherestrictiontodiscreteBabuska_Brezzi’sconditionsinresearchesofmixedfiniteelement (MFE)methods,oneusuallyusesthestabilizedMFEmethodsformat[1] .Thereareanumberofstabilizedmethods (see ,e.g .,Refs.[1- 7]andthereferencestherein) ,whichh… 相似文献
19.
何吉欢 《应用数学和力学(英文版)》2002,23(3):241-248
IntroductionAlmostalltheperturbationmethodsdependuponthesmallparameterassumption ,thatis,thesolutionofanonlinearequationcanbeexpressedintheformofpowerseriesinasmallparameterεu=u0 +εu1+ε2 u2 +… ,( 1 )whereu0 isthesolutionofunperturbedequationwhenε =0 ,thecorrection… 相似文献
20.
IntroductionItiswell_knownthattheLaplacetransformoftheproductoftwotime_domainsignalsequalsthecomplexfrequency_domainconvolutionofindividualLaplacetransformsoftwosignals.Generally,theconvolutionoftwocomplexfrequency_domainanalyticalfunctionsiscalculate… 相似文献