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《Advanced Tailplane Designs and Repair Mechanisms for the Semirigid Airship Zeppelin NT 英文书》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、AIAA5thAviation,Technology,Integration,andOperationsConference(ATIO)
AIAA2005-746526-28September2005,Arlington,VirginiaAdvancedTailplaneDesignsandRepairMechanismsfortheSemirigidAirshipZeppelinNT*†‡§ThomasKuhn,UlrichBerger,MichaelLangandHorstBaierInstituteforLightweightStructures(L
2、LB)atTechnicalUniversityofMunich,85748Garching,GermanyTheZeppelinNTisasemirigidairship,producedbyZeppelinLuftschifftechnikGmbH(ZLT)inFriedrichshafen,Germany.ItusesthreeidenticaltailplanesinaninvertedY-arrangementforsteering.Thesetailplanesarebuiltinastiffened,thinandlightCFRP-sandwich
3、shellconstruction.ForthistailplaneconcepttheInstituteforLightweightStructures(LLB)atTechnicalUniversityofMunich,Germany,hasdevelopedanIn-Situmonitoringmethod,basedonLAMB-waves,todetectdamagesduetohailstoneimpacts.Alternatively,theLLBhasresearchedadvancedtailplanedesigns–toimproveresis
4、tancetohailstonesandtoreducemassversusthecurrenttailplanes–aswellasrepairmechanisms.NomenclatureE=Young’sModulusE11=Young’sModulusinwarp-directionE22=Young’sModulusinfill-directionε=TensilestrainεBr=MaximumtensilestrainεBr=Maximumlinearizedstrainε1=Tensilestraininwarp-directionε2=Tens
5、ilestraininfill-directionγ12=Shearstrainl=Clampinglengthσ=TensilestressσBr=Maximumtensilestressσlin=Maximumlinearizedstressσ1=Tensilestressinwarp-directionFigure1.ZeppelinNTLZ07inflight.σ2=Tensilestressinfill-directionσpre=Prestressingτ12=ShearstressI.IntroductionASEDontheactualtailpl
6、anedesignofthesemirigidairshipZeppelinNTLZ07,astiffened,thinandlightBCFRPsandwichshellconstruction,builtbyZeppelinLuftschifftechnikGmbHinFriedrichshafen,Germany,theInstituteforLightweightStructures(LLB)atTechnicalUniversityofMunich,Germany,hasdevelopedhealthmonitoringmethodsandadvance
7、dstructuraltailplanedesignstoimproveimpactresistancetohailstones.These*ResearchAssistant,InstituteforLightweightStructuresatTechnicalUniversityofMunich,Boltzmannstr.15,85748Garching,Germany;AIAAstudentmember.†ResearchAssistant,InstituteforLightweightStructuresatTechnicalUniversityofMu
8、nich,
