飞机启动系统.ppt

《飞机启动系统.ppt》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、ContentsGeneraldescriptionTheductingsystemandSOVStarterSwitchingThestartsequenceFunctionalblockFaultreasonsFaulttreeandisolationprocedureGeneralDescriptionCFM56-5CManufacturedbyCFMInternationalUsedonAirbusA340-200andA340-300Thrustrating:31200~~34000lb.fFeatures:LowestSFCof

2、CFM56familyLowernoiseHighthrust-to-weightratioSecond-generationFADECLong-duct,mixed-flownacelle5.StructuralData1stagefanand4stagebooster9stagecompressor4stageHPturbine1stageLPturbineDuctingsystemAircomefromthreesource:APUGroundaircartOtherengineRHandLHconnectthroughacrossb

3、leedvalveCheckvalvetoprotectAPUDuctingsystemShut-offvalveBetweenthetopandlowerductUsedtocontroltheairquantityControlledbyECUStarterSwitchingEachpushbuttonservesfor:manualstartmotoringEnablestartsequenceChooseworkconditionTostart:1:ENGSTARTsettoIGN/START2:ENGMASTERto“ON”Sta

4、rtsequenceStage1:StarterdriveEngine(openSOV)Stage2:TurbinestartdriveEngine(N2>22%ignition)Stage3:starterstopworking(N2>50closeSOVcutignition)123FunctionaldiagramFunctionaldiagramFaultReasonsTopandlowerstarterduct(ductandconnectionsleak)StarterSOV(can’topenfully)Starter(tea

5、rsandFODorhighfriction)123FaultTreeFaultIsolation