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1、【仓储物流工程师,国电联合动力技术有限公司】前程无忧官方招聘网站solidandfluidmechanics.Formanyoftheseproblemsleast-squaresprinciplesoffermanytheoreticalandcomputationaladvantagesintheimplementationofthecorrespondingfiniteelementmodelthatarenotpresentinthetraditionalweakformGalerkinfiniteeleme
2、ntmodel.Forinstance,theuseofleast-squaresprinciplesleadstoavariationalunconstrainedminimizationproblemwherecompatibilityconditionsbetweenapproximationspacesneverarise.Furthermore,theresultinglinearalgebraicproblemwillhaveasymmetricpositivedefinitecoefficientmat
3、rix,allowingtheuseofrobustandfastiterativemethodsforitssolution.Wefindthattheuseofhighp-levelsisbeneficialinleast-squaresbasedfiniteelementmodelsandpresentguidelinestofollowwhenalowp-levelnumericalsolutionissought.Numericalexamplesinthecontextofincompressiblean
4、dcompressibleviscousfluidflows,platebending,andshear-deformableshellsarepresentedtodemonstratethemeritsoftheformulations.ArticleOutline1.Introduction2.Anabstractleast-squaresformulation2.1.Notation2.2.Theabstractproblem2.3.L2least-squaresformulation2.3.1.Space–
5、timecoupledformulation2.3.2.Space–timedecoupledformulation2.4.Thevariationalproblem2.5.Thefiniteelementmodel2.6.Norm-equivalenceanditsimplications2.7.Aleast-squarescollocationformulation3.Viscousincompressibleandcompressiblefluidflows3.1.Governingequations3.2.K
6、ovasznayflow3.3.CompressibleflowpastaNACA0012airfoil4.Platesandshells4.1.Governingequations4.2.Simplysupportedcircularplate4.3.Barrelvault5.SummaryandconcludingremarksReferencesPurchase154Finiteelementmodellingandupdatingofalivelyfootbridge:ThecompleteprocessOr
7、iginalResearchArticleJournalofSoundandVibration,Volume301,Issues1-2,20March2007,Pages126-145Stana?ivanovi?,AleksandarPavic,PaulReynoldsClosepreview
8、Relatedarticles
9、RelatedreferenceworkarticlesAbstractAbstract
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12、tractThefiniteelement(FE)modelupdatingtechnologywasoriginallydevelopedintheaerospaceandmechanicalengineeringdisciplinestoautomaticallyupdatenumericalmodelsofstructurestomatc
