空間行波管有限元熱分析及仿真平臺的開發(fā).pdf

1、合肥工業(yè)大學(xué)碩士學(xué)位論文空間行波管有限元熱分析及仿真平臺的開發(fā)姓名：劉磊申請學(xué)位級別：碩士專業(yè)：精密儀器及機(jī)械指導(dǎo)教師：呂國強(qiáng)201204FiniteElementThe珊alAnalysisofSpaceTWTandDeVelopmentofSimulationPlatformABSTRACTspacetraVelingwaVetube(TWT)iswidelyusedinvarietyareasofsatelliteconlmunl

2、catlonsystems，mannedspacenightandlunarexploration，radarandelectronlccountermeasuretransmittersSomestringentrequirements，suchaslonglife，highefficiency，highreliabilityalongwithlowestpossiblesizeandheight，mustbemettosatisfy

3、itsspecialworkingenvironment0neofthemostimportant士actorswhichrestrictthesegoalsisthermalcharacteristicsofTWTQualitativeandquantltatlVeresearchontemperatureforcomponentsofTWTcanprovideane士士ectlVemeanstosolVethestability，r

4、eliabilityand‘‘nrst—passdesignsuccess”Inthisdissertation，thedeVelopmenthistoryofspaceTWTdomesticandIntematlonallatestresearchesonthermalanalysisareintroducedAsystematicthermalcharacte“sticsanalysisandthermaldesignofaKaba

5、ndspaceTWTispertormeduslngflnlteelementmethod(FEM)softwareANSYSThermalslmuIatlonanalyslsandexperimentofelectrongunareconducted，temperaturedlstnbutlonchartandwarm—uptimearealsoplottedTheseresultsarehelpfultotheoptimizatio

6、ndesignofelectrongunThecomparisonofdatashowsthatcathodecanreachahlghertemperaturewithinshortertimeaftertheoptimizationofshield上aklngthermalcontactresistanceintoaccount，thermalanalysisofsIowwavestructureandhighfequencyinp

7、ut—outputwindowbytheoryandsimulationareIntroducedto1mproVeitsperf6rmanceofthermaldissipationDifferentwaysofcoo“ngmeansthataffecttemperaturedistributionofmuItistagedepressedcollectorarecompared1I。heauthorpresentsaneffecti

8、Vewaytosignificantlycooldownthetemperatureofc01lectorFinally，aspecialthermalplatformforspaceTWTwasestablishedbaseonVisualC60compileenVironmentthroughsecondarydevelopmentofANSYSDuingtoitssinlpleoperation，friendlyinteracti