幾種包絡(luò)結(jié)構(gòu)的解析設(shè)計方法.pdf

1、東北大學碩士學位論文幾種包絡(luò)結(jié)構(gòu)的解析設(shè)計方法姓名：崔巖申請學位級別：碩士專業(yè)：機械電子工程指導教師：張健成20070101東北大學碩士學位論文AnalyticaldesignmethodofsomekindofenvelopestructureAbstractItisimportantproblemthatformdesignintheengineeringForinstance，theleastresistancedesignofw

2、arheadandsubmarinetheleastredarareadesignofplaneandvessel，themaximumstiffoessdesignofbridge，theleastenvelopedesignofcasebody，etcbecausethistasktakesacentralpositioninengineering，itisimportantsignificationthatanalyticalop

3、timizationmethodreplacesexperlencedesignmethodIntextmaketheanalyticaloptimizationdesigntothreekindofenvelopestructureofmissileheadshapetakeaimattheleastresistance，withpegoffullness，underdefiniteboundaryconditiontakemissi

4、lewarheadoptimashapeLookintoundertheactionofproductforfixedvalue，twainreamcirculararchsuffernormaldirectionevenlydistributedload，archaxissubmitcounselagainstfleetionandOVeragainstweighflectionmodetimelyacquireproblemtext

5、adoptrayleighRitzmethodmeansproximatecalculationarch’criticalloadandsectionaloptimizeformBothproceedfromboundarylayerresearchknowaircraftresistanceandcavitationofnoise，establishingmodelofaircraftdragmodelTheparameterproc

6、eedsolve，arriveataircraftwithoutcavi哆dragminimaheadershapeofthebethadoptobjectplanespreadsourceremitfaradandmomentumthicknessofboundarylayerintegralmethodversusaircraftslipstreamflowfieldandboundarylayerAllmakeaclearlyco