《航空工程技术英语》课件——Chapter 11 Landing gear教学课件：Landing Gear.pptx

LandingGear航空工程技术英语

Thelandinggearconsistsoftwomaingearsandanosegear.Themaingeararelocatedinboardofeachengine,aftoftherearwingspar.Thenosegearislocatedbelowtheaftbulkheadoftheflightcompartment.Brakingisprovidedbyfourbrakeassemblies,onemountedoneachmaingearwheel.LandingGear

LandingGear

Landinggearcontrolandindicationcomponentslocatedintheflightcompartmentinclude:thelandinggearselectorleverandindicationlights,manualextensionhandles,parkingbrakeleverandindicator,nosegearsteeringcontrolwheel,antiskidcontrolswitchandinoperativeindicator,andtheautobrakecontrolswitchanddisarmindicator.LandingGear

LandingGear

目录CONTENTSLandingGearStructure01ExtensionandRetraction02NoseWheelSteering03

LandingGearStructurePART01

1.LandingGearStructureThemaingearprovidesthesupportfortheaftsectionofthefuselage.Itusesashockstruttoabsorbimpactonlanding，Andshocksandvibrationwhiletaxiing.Eachmaingearishydraulicallyactuatedtoretractinboardintothefuselage.Doorsandwheelwellsealsprovidefairingwiththegearretracted.Lockmechanismsandsensorsassurethatthemaingearisdownandlockedorupandlocked.

1.LandingGearStructureThenosegear,locatedbelowtheaftbulkheadofthecontrolcabin,providesthesupportfortheforwardsectionofthefuselage.Thenosegearincludesadragbrace,shockstrut,torsionlinks,ahydraulicnosegearactuatorandahydrauliclockactuator.Theshockstrutconsistsofinnerandoutercylinders.NoseGear

ExtensionandRetractionPART02

2.ExtensionandRetractionThelandinggearishydraulicallyactuatedtoextendandretractbymeansofalandinggearselectorleverlocatedonthecenterinstrumentpanelwhentheselectorleverisplacedintheUPposition,allthreegearretract.Eachmaingearretractsintothefuselage.Thenosegearretractsintothenosewheelwell.

2.ExtensionandRetracti