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1、飛機吊掛靜力試驗界面載荷傳感器研制與應用AbstractTheC919aircraftpylonisakindofstaticallyindeterminatesupportstructure,designedwiththemethodofintegratedpropulsionsystem.Comparedtousualpylonstructures,itsload-transmissioncharacteristicismorecomplicated.So,accuratemeasurementoftheinterfaceloadsbetweenpylona
2、ndwing/engineisthekeytothepylonstatictest.Therefore,accordingtothetestrequirementsofinterfaceloadmeasurement,thepaperstudiestheloadsensorsondevelopmentandapplication.Basedontherangeandaccuracyrequirementsofloadsensorsandtheconfigurationanalysisofanexistingsensor,twoconfigurationsenso
3、rsofsolidline-contactandsolidpoint-contactarestudied.Inordertoverifytheeffectivenessofthelatterconfiguration,avalidationtestisconducted.Theresultsprovethatthestaticcharacteristicsandmeasuringaccuracyofsolidpoint-contactsensorarebetterthanthatofsolidline-contactsensor,andnotaffectedby
4、itsinstallationposition.Thus,accordingtotheinterfaceloadsize,thetwoconfigurationsensorsarecarriedoutthestructuredesign,strengthcheckandcalibrationtesttoobtaintheloadequations.Combinedwiththestructureformandinstallationconditionofthepylon,asetofstatictestsystemisdeveloped.Andatthephas
5、eoflimitloadtest,thesensorsstudiedabovearesuccessfullyappliedinmeasuringtheinterfaceloadsbetweenpylonandwing/engine.Inaddition,theaxialloadsoftheconnectingrodscorrespondingtomountedsensorsaremeasured,toanalyzetheaccuracyofsensormeasurementvalue.Bythecomparisonresults,itisshownthatthe
6、maximummeasurementdeviationofsensorsis7.38%,satisfyingtheinterfaceloadmeasurementrequirements.Keywords:Aircraftpylon,statictest,loadsensor,configurationdesign,calibrationtest,staticcharacteristicII萬方數(shù)據(jù)南京航空航天大學碩士學位論文目錄第一章緒論..............................................................
7、......................................................................11.1引言........................................................................................................................................11.2國內外研究現(xiàn)狀.............................................................
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