二維連續(xù)體結(jié)構(gòu)形狀優(yōu)化的理論與基于msc.nastran的軟件二次開發(fā)

1、北京工業(yè)大學碩士學位論文二維連續(xù)體結(jié)構(gòu)形狀優(yōu)化的理論與基于MSC.NASTRAN的軟件二次開發(fā)姓名：李棟申請學位級別：碩士專業(yè)：固體力學指導教師：隋允康2003.6.1AbstractAprogr鋤ofsh印eoptirIlizationfor押枷imensionalcOntinuurnstmctLlres，whjchiscarriedoutonMSC黝汀RAN&NASTRANpanel，isdescribediIlthisthesis

2、，accordingtoat、voph懿econ仃oltheorypresentedbyProfessorSuiyunkallg，theoptirIlizationistreatedaSaSequentialQuadraticPro掣anlmingproblemTheresearchofshapeoptimizationintllisthesisfocllSesi11tlleregionofmodellmgofoptimization，

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4、elationbet、ⅣeendesignVariables趾do巧ective‰ction，orbet、veendesignv盯ia_blesandconstram‰ctionisnoteasytofiIldtlles證lpleapparentrelationandthesensitiVi何Thesecondonebom出es衄Icnlreshapedesc曲ingandtllesh印echan百ngcon們】isdi伍cllltTh

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6、emeshThuswecaIlfornlt11etwolayercontrolrelationaboutcontrolkeypointofdesignv撕ablesandcomrolIlode(mes”ofkeypoint，強ds01Vetllesensitivitypmbleme丘色ctivelyByu幽唱thedesignu11it∞dkeypoim，achangeofs訊lctIlralsl珀口ecaIlbecor心olled鋤d

7、describedpreciselyU∞廿leMSC附LTRANtofo皿tllei11itialmesh，mencoI燈olthemeshilltheprocessionofoptimiziIlgusiIlgmappingmetllodTherefore，也edi歷cultiescanbesolvedby印plyiIlgthc1Wopllasecontr01nletllodThedevelo啪entofsh印eo砸nlizationm

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