基于分層發(fā)散思想的四邊形網(wǎng)格生成算法研究與實(shí)現(xiàn).pdf

1、浙江大學(xué)碩士學(xué)位論文基于分層發(fā)散思想的四邊形網(wǎng)格生成算法研究與實(shí)現(xiàn)姓名：但文蛟申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械設(shè)計(jì)及理論指導(dǎo)教師：胡樹(shù)根王耘20040201浙江大學(xué)碩士學(xué)位論文摘要ABSTRACTInthepastfewyears，withthedevelopmentofcomputertechnology，themethodofthenumericalSimulationhasreceivedgreatsuccessbothintheor

2、yandinpracticeIthaspowerfulmeanstocomplicatedproblemsinengineeringcommunityThemeshgeneration，whichiSakeytechnologyfornumericalSjmu]ation，jSverycomplicatedandeasilybemistakenIttakesupamajorDartofthetotaltimeofthenumerical

3、simulationAtthesametime，thequalitvofameshdirectlyaffectsboththereliabilityoffiniteelementandthetimethattheanalysiSprocessCostAsaresult，howtogeneratehighqualitymeshrapidlyisextremelyvaluableforthenumericalsimulationPaving

4、methodhasreceivedWideacceptance，whichgeneratesa11一quadrilateralmeshesinanarbitrary2DregionHoweverithasseveraldefects，suchasthecomplexityofmakingprogramandirregularmeshInordertoavoidthosedefectsofthepaving，anewalgorithm，n

5、ameddelamination＆divergencealgorithm，hasbeenbroughtforwardBaseonthetriangleinequality，anewjudgmentparameterformeshqualityhasbeenadvancedtoguaranteethemeshqualityBasedontheirregularmesharoundanode，amodificationismadetothe

6、IsoLaplaciansmoothmethodinthemeshsmoothingInthisdissertation，researchworkrelatedtothecontentthatdiscussesabovehasbeenintroducedFirstly，thedissertationexpatiatesthestatusaboutmeshgenerationresearchAfteranalysethesignifica

7、noesofresearchingquadrilateralmeshes，thestructureofthedissertationdetailsiSpresentedSecondly，Basedonthethoughtofthedelamination＆divergence，thedissertationexpatiatesthepre—disposeoftheFEMmethod，Itintroduceshowtopreparefor

8、thepre—conditionofmeshgenerationandhowtodistributeandstorethepointsbywhichthemeshisgeneratedThirdly，thedissertationintroducesthedetailsofhowtogeneratethemeshbasedonthethoughtofthedelamination＆divergenceFreeDrawsoftwarewh