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1、飞机吊挂静力试验界面载荷传感器研制与应用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万方数据南京航空航天大学硕士学位论文目录第一章绪论..............................................................
7、......................................................................11.1引言........................................................................................................................................11.2国内外研究现状.............................................................
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