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1、Thesummaryfthrustfcevecttechnology1.Outlihethrustfcevecttechnologyisreferstothemotpowerthethrustfcecomponentwhichproducesthroughthenozzleeitherthetailjetdeflectiontosubstitutetheiginalairplanethecontrolsurfacestrengthens
2、theairplanetheoperationfunctioncarriesontherealtimecontroltotheairplaneflightthetechnology.Toitsapplicationbutalsomustdependupontechnicalthesooncomputerelectronictechnologyautomaticcontroltechnologyenginemanufacturetechn
3、ologymaterialcraftintegrateddevelopment.Usingthethrustfcevecttechnologytothenewdesignonthemodificationnextcenturymilitaryairplaneindeedisaneffectivetechnicalbreachittothefighteraircraftstealthreducesantireducesweightextr
4、emelyisalleffective.ThethrustfcevecttechnologycanletthemotpowerapartturnthecontrolfcereplacespartiallyreplacesthecontrolsurfacethusgreatlyreducedtheradarreturnareaNomattertheangleofattackbigtheflyingspeedismuchlowtheairp
5、laneallmayusethispartofcontrolfcetocarryontheoperationthisincreasedtheairplanecontrolliability.Becausedirectlyhasthecontrolfcesizedirectioninstablealsoincreasedtheairplaneagilitythusmaysuitablyreduceremovetheverticalstab
6、ilizeralsocansubstituteothersomecontrolsurfaces.Thistoreducestheairplanetobepossiblethesurveytobeadvantageousalsocancausetheairplanetheresistancetoreducethestructurereducesagain.Therefetheusethrustfcevecttechnologysolves
7、thedesigncontradictybestchoice.HaspermittedfmanyyearscountrysoonAmericaRussiahasperfmedthemassiveperfmanceflighthadprovenusingthethrustfcevecttechnologyindeedcanachieveprearrangesgoal.AfterinApril1991theGulfWarendedthePe
8、ntagonputsout50billionUSdollarsthedevelopmentisdifferentwiththeF117newstealthairplanehasusedthethrustfcevecttechnologythereuponhadhasbasicallysatisfiedtheabovemanykindsofrequeststheF22fighteraircraft.TheRussiandevelopmen
9、tstealththethrustfcevecttechnologyappliedresearchincludestheMig1.44theaircurrentreactingfcewhichsendsouttothedifferentdirectionmayrapidlychangethedirectionusingtheengine.“JanesDefenseWeekly“in1992saidtheRussianhadalready
10、surmountedF117directlydevelopedthemodernsupersonicspeedattackairplanehasbecometheF22competit.2Technicalclassificationtoairplaneoverallperfmanceinfluenceeffuser(2DCDN)thepureinflationpitchnozzle(SERN)thedualwedgewritingst
11、ylenozzle(2DWN)skidsthethroattypenozzle(STVN)thesphericalsurfacerestrainsadjuststhenozzle(SCFN)soon.TheresearchconfirmedthatDualvectnozzlethrustvectiseasytoachieve.theendofthe80sAmericantwoadvancedresearchfighteraircraft
12、sYF22F119YF23F120haveusedthiskindofvectnozzle.Thedualvectnozzleshtcomingisthestructurequiteunwieldyflowsintheacteristictobewse.2.3AxialsymmetryvectnozzleThethrustfcevecttechnologyresearchconcentratesatfirstinthedualvectn
13、ozzlebutalongwithresearchthoughdiscoverytwodimensionalnozzlemeritalthoughmanybutshtcomingalsoveryobvioustransplantsinparticulartotheoperatingaircraftonisquitedifficult.Therefehasdevelopedtheaxialsymmetrythrustfcevectnozz
14、le.GECpationstartstheaxialsymmetrythrustfcevectnozzledevelopmentinthe1980sintermediatestagesitsdevelopmentnozzlechangestheadjustmentby3A94A8throatareaadjustment3adjustableringsconstitutionsoonsupptingganizationnozzlecont
15、rolvalveaswellasgroupofheatresistingsealspieces.2.4FlowfieldthrustfcevectnozzleTheflowfieldthrustfcevectnozzleiscompletelydifferenttothefrontseveralkindofmachineriesdoesmovesthetypethrustfcevectnozzleitsmainacteristiclie
16、sinthrough(SecondaryFluid)affectsthemainstreaminthenozzledivergentsectionintroductionlateralinferiaircurrenttheconditionachievesthechangethecontrolmainstreamareathedirectionthengainthrustfcevectgoal.Itsmostmainmeritwassa
17、vesthemachinerywhichthemassiveimplementationsthrustfcevectusedtotransptsimplifiedthestructurereducedtheairplaneweightreducedthemaintenancecost.Therealizationflowfieldthrustvectcontrolhasthemanykindsofwaysbelowatpresentst
18、udieshastheway:(1)jetthrustvectcontrol.Bytheaircurrentafterthenozzledivergentsectionmanyinjectionsthefcemainstreamattachesdependsonflowstoontheoppositesidewallsurfacethusproducestheside.(2)regurgitationthrustvectcontrol
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