版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
无人机专业英语Unit
1IntroductiontoUnmannedAerial
VehicleCONT1.11.21.3T E NDefinitions,
Acronymsand
AbbreviationsHistoryandDevelopmentTrendof
UAVClassificationandApplicationof
UAV1.1Definitions,Acronymsand
AbbreviationsUnmanedAerialVehicleisanaircraftmanagedbycontrolstation(including
remotecontrolorautonomousflight),whiledronesarealwaysdefinedasman-madevehicleswithouthumanpilotsaboard,andareoperated
remotely.UAVUnmannedAerial
Vehicle无人机UASUnmannedAerial
System无人机系统LIDARLightDetectionAnd
Ranging激光雷达GCSGroundControl
Station地面控制站3DThree-Dimensional三维DLSDataLink
Station数据链路站FCSFlightControl
System飞控系统GPSGlobalPositioning
System全球定位系统CCSCommandControl
Station指挥控制站1.1Definitions,Acronymsand
AbbreviationsAsanengineer
inaircraftindustry,youshould:alwayscheckwordsin
specifieddictionaryalwaysusetechnicalnamesand
verbsR
ul
e1.
1R
ul
e1.
2R
ul
e1.
3R
ul
e1.
4Wheneveryouareusingorlearningwords,alwaystakecareofthepartofspeech.Useapprovedwordsonlywith
theirapproved
meanings.Usetherightformsofverbsand
adjectives.1.1EnglishTraining
PartAsanengineerinaircraftindustry,you
should:·alwayscheckwordsin
specified
dictionary ·alwaysusetechnicalnamesand
verbsR
ul
e1.
1SimplifiedTechnicalEnglishhasacontrolleddictionarythatgivesyouthewordsmostfrequentlyusedintechnical
writing.Examples:Theword“use”isanapprovedverb,theword“engine”isatechnicalname,andtheword“ream”isatechnical
verb.Wheneveryouareusingorlearningwords,alwaystakecareofthe
partofspeech.R
ul
e1.
2Theword“test”isanapproved
noun.
Theword“dim”isanapproved
adjective.Theword“clean”isanapprovedverband
adjective.STE:Dotheleaktestofthesystem.STE:Adimlightcomes
on.
STE:Cleantheinnersurfaceofthecontainer.STE:Makesurethatthearea
isclean.
1.1EnglishTraining
PartUseapprovedwordsonlywiththeirapproved
meanings.R
ul
e1.
3Somewordsmighthavemorethanonemeaning,tomakeitmoreaccurate,alwaysuseapprovedmeanings.Example:Theapprovedmeaningoftheword“follow”is“comeafter,goafter”,not“obey”.Non-STE:Followthesafety
instructions.STE:Obeythesafety
instructions.Usetherightformsofverbsand
adjectives.R
ul
e1.
4InfinitivePresent
TensePast
TensePast
Particleto
removeremove(s)removedremovedEnglishTraining
Part1.11.2Multi-rotor
UAVFixedWing
UAVCompositeWing
UAVUAVisdividedintomulti-rotor,fixedwing,compositewingandso
on.ClassificationandApplicationof
UAV1.2.1 UAVApplication
ScenariosAgricultureElectric
PowerEngineeringPoliceand
SecurityAerialPhotography1.2.2WingLoong
UAVCloudShadow
UAVDomestic
UAVsUAVslike“CloudShadow”and“WingLoong”locatemoderateintensitywarfare,flyathighaltitude,strikeandreconnaissanceintegrated,capableofmultimount
andsuper
stealth.Tryto
rememberwordsinatechnicalname
category.R
ul
e1.
5R
ul
e1.
6R
ul
e1.
7R
ul
e1.
8Whenyouarewriting,makeyour
sentencesshortandeasytounderstand.Use
professionaltermsinsteadofslangor
jargon.WhenreadingEnglisharticles
orinstructions,alwaysmind
units.1.2EnglishTraining
PartR
ul
e 1
.
5 Trytorememberwordsinatechnicalname
category.EnglishTraining
Part1.2Technical
NameCategoryWordspartsbolt,cable,conductor,ferrytank,indicator,pipe,propeller,
switchvehiclesormachinesAircraft,airframe,bicycle,cabin,car,cargocompartment,engine
roomtoolsbrush,cap,gauge,roller,
pinmaterialsacid,adhesive,aluminumalloy,copper,stainlesssteel,water,
wirefacilitiesairport,building,gate,port,shop,
storesystemsairconditioning,audio,exhaust,pumpphysicsacceleration,average,electricity,curve,pressure,temperature,
tension,stallnavigationair,altitude,axis,climb,pitch,roll,
yawunitsmeter,mile,minute,month,one-quarter,second,
squarepersonscaptain,commander,copilot,crew,operator,
manufacturerenvironmentatmosphere,cloud,daylight,humidity,lightening,moisture,
rainWhenyouarewriting,makeyoursentencesshortandeasy
tounderstand.R
ul
e1.
6Originalsentence:Removethefourstainlesssteelpanheadmachinescrews(10)thatattachthemetallicmachinedflange(15)tothefronthousingcover
(20).Aftermodification:Removethefourscrews(10)thatattachtheflange(15)tothecover
(20).Originalsentence:Thepilotusedthebrake,whichisonthelandinggear,andpushedittothebiggest
level.Aftermodification:Thepilotappliedthemaximumbrakeonthe
landinggear.EnglishTraining
Part1.2Useprofessionaltermsinsteadofslangor
jargon.R
ul
e1.
7【Example】Originalsentence:Makeasandwichwithtwowashersandthespacer.Aftermodification:Installthespacerbetweenthetwo
washers.EnglishTraining
Part1.2WhenreadingEnglisharticlesorinstructions,alwaysmind
units.R
ul
e1.
8【Example】Reamtheholeuntilithasadiameterof8.00+/-0.003mm.Avalueof2inchesis
permitted.Thebaseofthetriangleis5
cm.Themaximumthrustoftheengineintheworldis134,300
pounds.In1959,theU.S.AirForce,concernedaboutlosingpilotsoverhostileterritory,beganplanningfortheuseofunmannedaircraft.Withindays,ahighlyclassifiedUAVprogramstartedunderthecodenameof“RedWagon”.TheAugust1964clashintheTonkinGulfbetweennavalunitsoftheU.S.andNorthVietnameseNavyinitiatedAmerica’shighlyclassifiedUAVsintotheirfirstcombatmissionsoftheVietnam
War.Duringthe1973YomKippurWar(alsocalledOctoberWarorRamadanWar),Sovietssuppliedsurface-to-airmissilebatteriesinEgyptandSyriacausedheavydamagetoIsraelijetfighters.Asaresult,IsraeldevelopedthefirstUAVwithreal-timesurveillance.TheimagesandradardecoysprovidedbytheseUAVshelpedIsraelcompletelyneutralizetheSyrianairdefensesatthestartofthe1982LebanonWar,resultinginnopilots
downed.1.3HistoryandDevelopmentTrendof
UAVTheHistoryof
UAV1.3.1DevelopmentTrendof
UAV21.3.2Moreintelligent,longerendurancetime,network
clustering.1UAV+AI.3Innovation
bombs.Thanks!无人机专业英语Unit
2Componentsof
UAVCTE2.12.22.5O NExternal
Loadand
OverloadHand-on:TheAssemblyof
UAFixed-wing:Structure
andComponent2.3N TIntroduction
toFuselage2.4Multi-rotor
UAV2.6UnmannedHelicopter2.1ExternalLoadand
OverloadExternalloadon
UAV2.1.1 ExternalLoadofFixed-wing
UAVGenerally,theexternalforceactingontheaircraftduringtakeoff,flight,landingandgroundparkingiscalledtheexternalloadoftheaircraft.Theseexternalloadsincludeaerodynamics,aircraftgravity,enginethrust,inertiaforce,groundreactionforceduringaircraftlanding,groundtaxiingandshutdown,etc.2.1ExternalLoadand
OverloadClassificationofExternal
Load2.1.21Accordingtothe
Formconcentrated
loaddistributed
load2Accordingtothe
Propertiesstatic
loadsdynamic
loads3AccordingtotheStateofAircraftfight
loadgroundloadLoads,exceptforgravity,varieswithtimeduringmaneuverflightorwhentheaircraftisencounteredwithsuddenwind.Theexternalloadcanonlyreflectthemagnitudeanddirectionoftheforceontheaircraft.Inordertofacilitatetheanalysisoftheexternalloadontheaircraftinacertainflightstate,theforceontheaircraftatthattimeisusuallycomparedwiththegravityoftheaircraft.Thisisthedefinitionof
overload.Introductionof
Overload2.1.32.1ExternalLoadand
OverloadThewingstructureisathin-walledstructure,generallycomposedofthefollowingtypicalelements:Longitudinalelementsincludewingbeams,stringers,walls;Transverseelementsincludewingribs(commonribsandreinforcedribs)andskinwrappedoutsidetheframeworkcomposedoflongitudinalandtransversemembers.Componentsof
Fixed-wing2.2.12.2Fixed-wing:Structureand
ComponentsComponentsof
Fixed-wing2.2.12.2Fixed-wing:Structureand
ComponentsStringersRibSparSkinClassificationof
Fixed-wing2.2.22.2Fixed-wing:Structureand
ComponentsClothSkin
WingMetalSkin
Wing2.3IntroductiontoFuselageExternalLoadof
Fuselage2.3.1 ExternalLoadof
FuselageDuringflightandlanding,thefuselagestructureshallbeartheconcentratedloadtransmittedfromthefixedjointsofwing,tail,landinggearandothercomponents,whichisthemainexternalloadofthefuselage.Atthesametime,italsobearsloadsofvariouscomponents,thegravityoffuselageitselfaswellasaerodynamic
forces.2.3IntroductiontoFuselageStructureof
Fuselage2.3.2 Componentsof
FuselageThefuselagestructureofmodernaircraftiscomposedofstringer,spacerframeandskin.Thespacerframeisdividedintoordinaryframeandreinforcedframe.Ordinaryframeisusedtomaintainthesectionalshapeofthefuselage,whiletheroleofreinforcedframeistospreadtheconcentratedforcetothefuselagestructurethroughthejoint,andthentransmitittotheskinintheformofshear
flow.2.3IntroductiontoFuselageFrameworkType
FuselageClassificationof
FuselageWiththeimprovementofaircraftflightperformance,thestructureofthefuselageisalsodeveloping.Accordingtothestressoftheskinoffuselage,thefuselagestructureisdividedintodifferenttypesas
follows:·Framework
type.Monocoque
type.Semi-Monocoque
type.MonocoqueType
FuselageSemi-Monocoque
TypeFuselage2.4Multi-rotor
UAVMulti-rotorUAV(alsocalled
multi-axisUAV)isaspecialhelicopterwiththreeormorerotoraxes.Themotoroneachaxisrotatestodrivetherotortogeneratethrust.Thiskindofaircraftismostlysymmetricaloraxial
symmetrical.StructureofMulti-rotor
UAV2.4.1 Introduction2.4Multi-rotor
UAVPowerdevicesusedbyUAVmainlyincludepistonengine,turbojetengine,turbofanengine,turbopropengine,turboshaftengine,ramjetengine,rocketengine,motor,
etc.Propellerof
UAV2.4.2 Componentsand
FunctionsMotorElectronicSpeed
ControllerBattery2.4Multi-rotor
UAVthan 160 differentproducts across 11aerospacecategories.products are asSome famousfollows:2.4.3 TheDevelopmentof
AVICAVIChasplayedamajorroleindevelopingChineseaviationfor
two
decades,
and
it
has
more1Fighter
Aircraft·J-10·J-20·J-312FighterBomber
Aircraft·JH-73Trainer
Aircraft·JL-8·JL-9·L-154Transport
AircraftY-8Y-9Y-205Bomber
Aircraft·H-6·H-206Helicopter·Z-8·Z-9·HC-120/EC1207UnmannedAerial
VehicleAVICCloudShadow·WingLoongUAV2.5Hand-on:TheAssemblyof
UAV2.5.1 IntroductionUAVassemblyisanimportantskillforUAVapplicationtechnology.HerewetakeacertainUAVdeviceforexample.Seethe
followingtable forthelistof
accessories.NameAmountNameAmountFrame1
setFoot
stand1
setPropeller2
pairsFCS1
setMotor4Damping
plate1Electric
regulation4GPS
module1Battery1
groupGPS
bracket1Remotecontroller1DuPont
line4Receiver1…2.5Hand-on:TheAssemblyof
UAV2.5.2 Processof
AssemblyWeldingof
LinesInstallthe
MotorInstallthe
Lower
Center
Plate Which
includes:Weldingofmotorwireandbanana
head.Weldingofelectricadjustingwireandbanana
head.Weldtheelectricregulatorandpowercordtothelowercenter
plate.Weldingof
T-head.InstallFlight
Control and
Receiver Fixthemotoronthebaseofthe
boom.When installing the lower center plate, tighten the screwsmoderatelytoavoidscrew
damage.Use3Mgluetopastetheflightcontrolonthetop(front)ofthelowercenterplate,andtrytoinstalltheflightcontrolonthecenterofthelowercenterplate.Usefoamdouble-sidedadhesivetapetoinstallthereceiveronthelowercenter
plate.2.5Hand-on:TheAssemblyof
UAV2.5.2 Processof
AssemblyInstallUpperCenterPlateInstall
Electric
Regulator InstallGPSand
LEDPlacetheuppercenterplateatthecorrectpositionandfixitwith
screws.Install
PropellerInordertoinstalltheelectricregulatorfirmly,installtheflatsideonthearm,fixitwithself-lockingties,andtheninstalltheelectricregulatortothe
arm.First,assembletheGPScarbonrodbracketwithglue,theninstalltheGPSbaseontheM4armscrewholeoftheuppercenterplate,andthenfixtheGPSonthetopplateofthebracketwithadhesive
tape.Thefixingmodeofbladeisrelatedtothetypeofmotorandblade.TaketheinstallationofDJIF450propellerforexample,thesideprintedwithDJILOGOisupward,andthesectionwithbiggerthicknessiswindward.Theinstallationpositioncanbedeterminedbyclockwiserotation.2.5Hand-on:TheAssemblyof
UAV“6S”
Regulations2.5.3Shine
(Seiso)Setin
order(Seiton)Standardize(Seiketsu)Sustain(Shitsuke)Safety“6S”Sort
(Seiri)2.6Unmanned
Helicopter2.6.1 IntroductionUnmannedhelicopterreferstotheUAVthatcanrealizeVTOL(verticaltakeoffandlanding)andhasthemostflexibility.ItbelongstorotarywingUAVinconfigurationandgeneralaircraftin
function.2.6Unmanned
HelicopterATypical
UnmannedHelicopter2.6.2 ComponentsofUnmanned
HelicopterTheliftofunmannedhelicoptersisgeneratedbyrotors.Thebasicstructureofunmannedhelicopterisgenerallycomposedofmainrotor,fuselage,tailrotor,landinggear,controlsystem,transmissionsystem,motororengine,
etc.Rule2
.1
Rule2
.2
Useconnectingwordsandphrasestoconnectsentencesthatcontainrelated
topics.Hedging.Rule2
.3
Rule2
.4
Takecareofsafety
instructions.To
p
i
c sen
t
e
n
ce an
d k
eywords.Rule2
.5
Rule2
.6
Unit
2 EnglishTraining
Partto makeDo not omit wordsyoursentences
shorter.Use a vertical list for complextext.Donotomitwordstomakeyoursentences
shorter.R
ul
e2.
1Donotomitnounstomakesentencesshorter.Itwillbedifficultforthereadertoknowwhatyou
mean.Non-STE:Canbeamaximumoffiveinches
long.STE:Crackscanhaveamaximumlengthoffive
inches.Donotomitverbs,becausethereaderwillnotunderstandwhattheactionis.Non-STE:Rotaryswitchto
INPUT.STE:Settherotaryswitchto
INPUT.Donotomitthesubject,becausethereaderwillnotknowwhatyouarereferringto.Non-STE:Ifinstalled,removethe
shims.STE:Ifshimsareinstalled,remove
them.Useaverticallistforcomplex
text.R
ul
e2.
2Whenthesentenceislongandyoumustincludemanydifferentitems(forexample,alistofcomponents,parts,ordocuments)oractionsinasentence,youcanputtheminaverticallist.Verticallistsmakelongcomplexsentencesmucheasiertoread
andunderstand.Non-STE:Thewheelassemblycomprisesthetire,thetube,thespokes,thespokefittings,thevalve,andthe
hub.STE:Thewheelassemblyhasthese
parts:The
tireThe
tubeThe
spokesThespoke
fittingsThe
valveThe
hubUseconnectingwordsandphrasestoconnectsentencesthatcontainrelated
topics.R
ul
e2.
3【Examples】)Thesesafetyprecautionsaretheminimumnecessaryforworkinthepitlane.Butthelocalregulationscangiveothernecessarysafety
precautions.)Ifthepressureincreases,itchangestheelectricalcurrentsinthetransmitter.Thus,thepowerunitsuppliescurrentstotheindicatorontherelated
panel.)Whenthehydraulicpressureisreleased,thesequencevalvemovestotheopenposition.Asaresult,theactuatorsareconnectedtothehydraulic
return.Hedging.R
ul
e2.
4Hedging,alsocalledcautionorcautiouslanguageortentativelanguageorvaguelanguage,isawayofsofteningthelanguagebymakingtheclaimsorconclusionslessabsolute.Itisespeciallycommoninscienceandengineering,forexample,whengivingahypothesisorpresenting
results.Hedgescanbecontrastedwithboosters(suchas“will”or“definitely”or“always”),whichallowwriterstoexpresstheircertainty.Thesearelesscommonlyusedinacademicwriting,thoughtendtobeoverusedbylearnersofacademicEnglishinplaceofmorecautiouslanguage.Takecareofsafety
instructions.R
ul
e2.
5)WARNING:Beforeyoufilltheliquidoxygensystem,putonafacemaskandprotectiveclothing.Liquidoxygencancauseirritationoftherespiratorytractandeyeirritation.)
WARNING: Always keep your hands and feet away from the blade. When the motoroperates,thebladeturnsandcan
causeinjury.(
3
)
CAUTION: Before you operate the ground test unit, make sure that the pressureregulatorissettozero.Thiswillpreventdamagetothe
unit.(4)CAUTION:Donotusebleachorcleansersthatcontainchlorinetocleantheunit.Thesecleaningagentscancause
corrosion.Topicsentenceandkey
words.R
ul
e2.
6【Example】Theinstrumentlandingsystemontheaircraftshowsdatathathelpsthepilotduringtheapproachtotherunway.Thissystemshowsthepilotthedeviationsfromthelocalizercourseandtheglideslopepath.Thelocalizercoursealignswiththecenterlineoftherunway.Andtheglideslopepathisataconstantangletothethresholdoftherunway.Duringtheapproachtotherunway,deviationpointersinthecourseindicatorsshowthepilotinwhichdirectiontheaircraftmust
go:—Leftorright(forthe
localizer).—Upordown(forthe
glideslope).Thanks!无人机专业英语Unit
3FlightDynamicsof
UAV1FlightDynamicsof
UAVControl
Surfaces23.13.2CONTENT3.1FlightDynamicsof
UAVNormalAxisof
Aircraft3.1.1 Axisand
RotationThethreecriticalflightdynamicsparametersoffixed-wingdronearetheanglesofrotationinthreedimensions.Thecenterpointiscalledcenterofgravity(COG),beingtheoriginofthreeaxesinthemeantime.Threeaxesarenormalaxis,longitudinalaxis,andlateralaxis.Rotationsinthreedimensionsareyaw,roll,andpitch,
respectively.Movementof
Yaw3.1FlightDynamicsof
UAVLongitudinalAxis
ofAircraft3.1.1 Axisand
RotationRollistherotationaboutthelongitudinalaxis,positivewiththestarboardwingdown.Movementof
Roll3.1FlightDynamicsof
UAVLateralAxisof
Aircraft3.1.1 Axisand
RotationPitchistherotationaboutthelateralaxis,positivewithnose
up.Movementof
Pitch3.1FlightDynamicsof
UAVAerodynamicForcesonan
Aircraft3.1.2 Aerodynamic
ForcesAerodynamicforcesarehighlydependentontheinteractionoftheatmospheremoleculeswiththeaircraftsurface,andspecificallyonthemolecules’densityandvelocity.Herethevelocityreferstotherelativevelocitybetweenatmosphereand
aircraft.3.1FlightDynamicsof
UAVAirfoil3.1.3 AirfoilA
cross section of a typical airplane wing shows the top
surface tobemorecurvedthanthebottomsurface.Thisshapedprofileiscalledan“airfoil”andtheshapeexistsbecauseithaslongbeenproven(sincethedawnofflight)thatanairfoilgeneratessignificantlymoreliftthanopposing
drag.3.1FlightDynamicsof
UAVTheGenerationof
Lift3.1.3 TheGenerationof
LiftThe
faster
a
wing
moves
through
the
air,
the
more
the
actions
are
exaggerated
andthemoreliftisgenerated.Conversely,aslowermovingwinggenerallycreatesless
lift.Theliftequalstohalfofthedensitytimesthesquareofvelocitytimeswingareatimeslift
index.3.2Control
SurfacesFor
a
airplane
to
fly
in
a
controlled
manner,
control
surface
are
necessary.Thefourmainsurfacesareaileron,elevator,rudderand
flap.Whentheairplaneisinforwardflight,itwill
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 《2024年 儿童血清25-羟维生素D水平与脓毒症的相关性》范文
- 函数的单调性与导数第二课时正式
- 三相电路功率的计算概念
- 制药行业智能化制药工艺与质量控制方案
- 农资产品电商销售模式创新与市场拓展策略
- 农产品供应链金融创新与风险控制方案
- 全国一等奖湘教版高中地理必修二《城市化过程对地理环境的影响》课件
- 稀土精矿化学分析方法 第9部分:五氧化二磷含量的测定 征求意见稿
- 上海汽车财务分析毕业论文
- 中国粉末高速钢(PMHSS)市场运营态势与投资前景分析报告2024-2030年
- 郑州马戏嘉年华规划方案
- 医疗废物管理与传染病控制
- 软件系统可行性方案
- 《吴维库领导力打造》课件
- 林下经济与生态种植模式
- 牛津高中英语新教材必修一-Unit-4单元-复习课件
- 反歧视培训课件
- 管道施工应急预案
- 《金融基础》教学教案
- 基于数字孪生的设备故障预测模型优化
- 小学学校信息化管理章程
评论
0/150
提交评论