Remeshing(网格重划分).ppt

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1、SECTION1Re-meshingtechniquesinMSC.MarcTABLEOFCONTENTSSectionPage1.0Re-meshingtechniquesinMSC.MarcWaystoimprovethemeshinMSC.Marc…………………………………………………………………………1-3LocalRe-meshing………………………………………………………………………………………………….1-4Largedeformationrubberanalysis………………………………………………………………………………..1-5Resultscontrolledb

2、yMeshshape………………………………………………………………………………...1-7Example:ClampedCantileverBeam……………………………………………………………………………...1-8FEMSolutionuniformmeshrefinement…………………………………………………………………………..1-9FEMSolutionlocallymeshrefinement…………………………………………………………………………....1-10LocalRe-meshingCriteriamenu………………………………………………………………………

3、…………..1-11ErrorCriteriaandElementtypes…………………………………………………………………………………..1-12CriterionType………………………………………………………………………………………………………..1-13Re-meshingstrategyforContinuumElements………………….…………………………………………….....1-30PossibleSubdivisionsforLocalMeshRefinement……………………………………………………………..1-31MultipointConstraintE

4、quations…………………………………………………………………………………....1-32Positionofnewnodes…………………………………………………………………………………………..…..1-35RezoningRequirements…………………………………………………………………………………………....1-41BoundaryConditionUpdate………………………………………………………………………………..…..…..1-45Linearanalysis……………………………………………………………………………………………………....1-46No

5、n-linearanalysis……………………………………………………………………………………………….....1-47ImportantMentatOptions…………………………………………………………………………………..…..…..1-48GlobalRe-meshing………………………………………………...………………………………………………1-50GlobalRe-meshingCriteriamenu……………………………...……………………………………………….…1-51Meshertype………………………………………………...………………………………………

6、……………..…1-52Re-meshingcriteria’s2-D……………………………………...………………………………………………...…1-53Re-meshingparameters2-D……………………………………...………………………………………….….…1-55ActivateRe-meshinginLoadCasemenu…………………...…………………………………………..…….…1-57DefineupperlimitsinJobmenu……………………………...……………………………………………………1-58Limits……………………………...………

7、……………………………………………………………………….…1-59ElementsandNodes……………………………...……………………………………………….……….………1-60AnalysisProcess……………………………...………………………………………………………………….…1-61Example:ResultswithGlobalRe-meshing………………...………………………………………………….…