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1、南昌航院2006屆畢業(yè)設(shè)計(jì)飛機(jī)前起落架機(jī)構(gòu)設(shè)計(jì)共31頁(yè)第1頁(yè)附錄附錄外文資料及譯文外文資料及譯文1.外文資料:AnIntroductiontotheAirplaneAirplanescomeinmanydifferentshapessizesdependingonthemissionoftheaircraftbutallmodernairplaneshavecertaincomponentsincommon.Thesearethefus

2、elagewingtailassemblycontrolsurfaceslinggearpowerplant(s).Fanyairplanetoflyitmustbeabletolifttheweightoftheairplaneitsfuelthepassengersthecargo.Thewingsgeneratemostofthelifttoholdtheplaneintheair.Togeneratelifttheairplan

3、emustbepushedthroughtheair.Theengineswhichareusuallylocatedbeneaththewingsprovidethethrusttopushtheairplanefwardthroughtheair.Thefuselageisthebodyoftheairplanethatholdsallthepiecesoftheaircrafttogethermanyoftheotherlarge

4、componentsareattachedtoit.Thefuselageisgenerallystreamlinedasmuchaspossibletoreducedrag.Designsffuselagesvarywidely.Thefuselagehousesthecockpitwherethepilotflightcrewsititprovidesareasfpassengerscargo.Itmayalsocarryarmam

5、entsofvarioussts.Someaircraftcarryfuelinthefuselageotherscarrythefuelinthewings.Inadditionanenginemaybehousedinthefuselage.Thewingprovidestheprincipalliftingfceofanairplane.Liftisobtainedfromthedynamicactionofthewingwith

6、respecttotheair.Thecrosssectionalshapeofthewingasviewedfromthesideisknownastheairfoilsection.Theplanfmshapeofthewing(theshapeofthewingasviewedfromabove)placementofthewingonthefuselage(includingtheangleofincidence)aswella

7、stheairfoilsectionshapedependupontheairplanemissionthebestcompromisenecessaryintheoverallairplanedesign.南昌航院2006屆畢業(yè)設(shè)計(jì)飛機(jī)前起落架機(jī)構(gòu)設(shè)計(jì)共31頁(yè)第3頁(yè)theblowofling.Specialtypesoflinggearincludeskisfsnowfloatsfwater.Fcarrierlingsarrester

8、hooksareused.Fwardmotionthrustisgeneratedbyathrustproducingdevicepowerplanttosustainflight.Thepowerplantconsistsoftheengine(propellerifpresent)therelatedaccessies.Themainenginetypesarethereciprocating(pistontype)thereact

9、ionjetenginesuchastheramjetpulsejetturbojetturboproprocketengine.Thepropellerconvertstheenergyofareciprocatingenginesrotatingcrankshaftintoathrustfce.Usuallytheenginesarelocatedincowledpodshungbeneaththewingsbutsomeaircr

10、aftlikefighteraircraftwillhavetheenginesburiedinthefuselage.Otherconfigurationshavesometimebeenused.FinstancetheWrightbrothers1903Flyerhadpusherpropellers(propellersattherearoftheplane)theelevatsatthefrontoftheaircraft.M

11、anyfighteraircraftalsocombinethehizontalstabilizerelevatintoasinglestabilatsurface.Therearemanypossibleaircraftconfigurationsbutanyconfigurationmustprovidefthefourfcesneededfflight.AirfoilAnairfoilisanypartofanaircraftth

12、atisdesignedtoproducelift.Thewingistheprimaryairfoilbutthepropellercanalsobeanairfoilaswellasthetailsurfacessometimeseventhefuselageitself.Anairfoilhasaleadingedgeatrailingedgeachdcamber.Theleadingedgeisthe“front“oftheai

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