基于有限元分析的微光夜視儀的結(jié)構(gòu)優(yōu)化設(shè)計.pdf

1、西安工業(yè)大學(xué)碩士學(xué)位論文基于有限元分析的微光夜視儀的結(jié)構(gòu)優(yōu)化設(shè)計姓名：張博申請學(xué)位級別：碩士專業(yè)：測試計量技術(shù)及儀器指導(dǎo)教師：高明20100528TheStructuralOptimizationandDesignofNightVisionBasingonFiniteElementAnalysisDiscipline：TestMeasurementTechnologyandInstrumentsStudentSignature：2二嘩鼬

2、pervisorSignatu掀島‘易礦M’矽AbstractThepaperbasingonthefiniteelementmethodusesANSYSsoftwarefortheNightVisiontocarryoutstructuraloptimizationFortargetoftheindividualnightvisioninthesmallsizeandlightweight，thepaperchoosesepoxyr

3、esinasmatrixandcarbonfibertostrengthenthefiberthroughcombiningthetheorycomparisonandfiniteelementanalysisInordertosimplifythemanufacturingprocessandreducetheweightandvolumemore，andtouniformstressdistributionofjoints，thep

4、aperchoosesalowdensityhighelasticmodulusandlowthermalexpansioncoefficientofepoxyresinadhesiveforbondingthevariouspartsThenightvisioninitialstructuraldesigniscompletedwiththeAutoCADThroughanalyzingthecarbonfiberreinforced

5、epoxyresincompositematerialsinelasticplasticfiniteelementappearsinavarietyofsimulatedandnightvisionunitandthestructureofthevariousunitsFinallythepaperchoosesSOLID185structuralunitandtheMPC184multipointconstraintsolvingun

6、itFortherequirementsoftheindividualnightvisioninanti10wtemperature，ANSYSisselectedasaindirectmethodtocompletethenightvisionlens，eyepieceandtheoverallstructureofthefiniteelementthermalstructuralcoupledanalysisAndthentheir

7、differentdirectionofdisplacementfieldcontourmapandcontourmapofstressindifferentdirectionsiSobtainedNumericalanalysisanddesignrequirementswerecomparedtofindoutthereasonsfordeviationandgoonthestructuraloptimizationcycleThe

8、resultsshowthatthecarbonusedinfiberreinforcedepoxyresincompositesisfeasibleAndtheresultofthecompletionofthestructuraldesignmeetsthedesignrequirementsKeyWords：theLowlightNightVisiondevice；compositematerials；ANSYS；thermals