機(jī)械原理上機(jī)指導(dǎo)書

機(jī)械原理

上機(jī)指導(dǎo)書

(TutorialofUsingADAMS)

1.Crankrockermechanism

1.1ProblemDescription

Inthecrank-rockerlinkageshown,driving

linkABhasacounterclockwiseangular

velocityco\=1rad/s.thelengthsoffourlinks

arc/|=120mm,，2=250mm,/3=260mm,

，4=300mm.

Thisproblemasksforthemotionanalysisof

rockerCD,todetermineitsangulartranslation,

angularvelocity.

1.2StartingMSC.ADAMSfromWindow

o

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AView與AOAMS-V^ew

AWMS-Arcraft2005r2

ADAMSCv2005r2

ADAMS?6RcalTrre2005r2

AWMSCh?952005r2

EAcce$$ori??ADAMS-Conmand

QAutodesk?ADAMS-Okelrw2005r2

QCATIA?ADAMSEngrw2005r2

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Thewelcomedialogboxappears.

1.3CreatingaNewModelName

O.ReplacethecontentsoftheModelnametextboxwithcrank_rocker_mechanism.

0.SelectOK.

Howwouldyouliketoproceed?

(?Createanewmodel

「Openanexistingdatabase

「Importafile

rExit

Startin|C'DocumentsandSettings\DEC\D_||

Modelnamecrank_rocker_mechamsm?a

GravityEarthNormal(-GlobalY)▼

UnitsMMKS-mm.kg.N.s.deg▼

IOK>1

Note!MSC.ADAMSdefaultstartworkingdirectiontoC:\Documen:sandSettings\Owner\desktop.Youcanselect

orcreateanewdirectionbyclick-1button.

ADAMSWorkingInterfaceisshownasfollow.

G個(gè)□

息口

Ao9

宣4Q

in??Rar?111

0.回

1.4SettingUpWorkEnvironment

1.5.1CreatingCrank

1.5.1.1CreatingaLink

G).Clickworkingarea.

(h).PressF4key.

TheCoordinateswindowappears.

Q.SelectLinktoolinMainToolbox.

DD..00..00((mmmm))||

(d).CheckLength.

O.inLengthtextfield,enter120.

0.Click(0,0,0)posidon.

O.Movethecursorhorizontally.Whenyouseealink

appears,click.

ThelinkiscreatedandnamedasPART_2

automatically.

1.5.1.2RenamingtheLink

O.Right-clickthelink(PART_2).(G).SelectPart:PART_2/Rename.

0.InNewNametextfieldenterCrank.SelectOK.

1.5.1.3ModifyingGeometryoftheCrank

G).Right-clickthecrankagain.

?.Select-Link:LINK_l/Modify.

0.inWidthtextfieldenter12,andDepthtextfieldenter6.

Note!YoudonotneedtoenterunitsbecauseADAMS/Viewusesthedefaultunitsifyoudonotspecifythem.

0.SelectOK.

1.5.2CreatingRocker

1.5.2.1CreatingRocker

G).SelectLinktoolinMainToolbox.

(h),CheckLength,inLengthtextfieldenter260.CheckWidth,inWidth

textfieldenter12.CheckDepth,inDepthtextfieldenter6.

?,Click(300,0,0)position.

Note!300isthelengthofthebaselink(i.e./4=300mm).

0.Movethecursorhorizontallyandthenclick.

TherockeriscreatedandnamedasPART_3automatically.

RenamePART_3asRocker.

????J

????T?????.fx

????■?????

—d—?~lxI)

⑥

1.5.2.2ModifyingRocker'sOrientation

Whentherankisinhorizontalposition(i.e.AB

positionshowninfigure),therockershouldbein

theDCpositionandnotinhorizontalposition.So

therockershouldberotatedaboutpointD(300,0,0)

fromhorizontalpositiontoDCposition(Being

counterclockwiserotated114°).

O.SelectE,toolinMain

Toolbox.

0.ClickViewCenterbutton.

0.Clicktherightendoftherocker.

(3).InAngletextfieldenter114.

O.Selecttherockerbyclickingit.

Note!Thepartmustbeselected

beforeitisrotatedandtranslated.

(D.Clickcounterclockwiserotation/lainToolbexX

N匈

button.

M圖

O.Therockershouldbeinths

一

positionshowninthefigure.a

國(guó)a3l

1.5.3CreatingLink

Q.SelectLinktoolinMainToolbox.

⑥.UncheckLength.CheckWidth,

inWidthtextfieldenter12;Checkjockerj

Depth,inDepthtextfieldenter6.

O.Clicktherightendofthecrank.

(d).Clickthetopendoftherocker.

Thelinkiscreated.

Renameit(PART_4)toLink.

1.5.4CreatingJOINT.ANwH

O.ClickRevoluteJointtoolinMainToolbox.ql

0.InConstructionfield,select1Locationand

NormalToGrid.匈alMg

Q.Clicktheleftendofthecrank.圓

凰M

TheJOINT_1betweencrankandfixedbase(ground)is.

created.

Q.RenameJOINT_1toJOINT_A.

PartCraw

5LMk1

-5bMkXR1

1.5.5CreatingJOINT_D

QSelectRevoluteJointtoolinMainToolbox.

0.InConstructionfield,select1Locationand

NormalToGrid.

0.Clickbottomendoftherocker.

TheJOINT_2betweenrockerandfixedbase

(ground)iscreated.

0.RenameJOINT_2toJOINT_I).

1.5.6CreatingJOINT.B

Q.SelectRevoluteJointtool.

(h).InConstructionfield,select2Bod-1Locand

NormalToGrid.

Q.Clickthecrank.

Clickthelink.

O.Clicktheconnectionpointbetweencrankand

link.TheJOINT_3betweencrankandlinkis

created.

RenameJOINT_3toJOINT_B.

1.5.7CreatingJOINT_C)lainToolbox區(qū)I

G),SelectRevoluteJointtool.A

⑥,InConstructionfield,select2Bod-1Loc2

1

andNormalToGrid.送

OH

0.Clickthelink.皂H

0.Clicktherocker.

O.Clicktheconnectionpointbetweenlinkand星A坦

rocker.TheJOINT_4betweenlinkandrockerisHevoluteJoint

created.Construction:

0.RenameJOINT_4toJOINT_C.2Bod-1Loc

NormaiTo

FirstBody

|Pick2]

SecondBody

IPickBodj>2]

1.5.8RenderingModel

0.ClickSelecttool.

Note!TheSelecttoolisalsohelpfulin

manyothersituations.Forexample,by

selectingtheSelecttool,youcancancel

anoperation,suchascreatinganobject.

Youcanalsocleartheselectionofany

objects.

(￡).ClickRenderbuttontorenderthe

model.

0.ClickSetthevieworientationto

F'rontbutton.

ThemodelcanbeseenasFig.a.

⑥,ClickSettheViewtoisometric

button.

ThemodelcanbeseenasFig.b.

1.5.9AddingMotion

>BainTeolWos區(qū)

Q.SelectRotationalJointMotiony

tool.9

⑥,InSpeedtextfieldenter180/PI泣

(=1rad/s).

0.Click.JOINT_AtoapplymoiionIt

toJOINTA.RotJointMobon

Constucbon

AppliedtodJoint

Characiemte

Speed|(180/R)lb

1.6SavingModelBrowseForFolder-ZJxJ

SelectDrectory

O.SelectF,ile/SelectDirectoryfromthe

dropdownmenu.Desliop

flI」MyDocumerts

0.SelectanexistingfolderorMake9WMyCcwputer3

?◎3URcopy<A:>

NewFoldertosavethemodel.(Herea0W$y^em(C:)

LJADAMSModdb

newfolder*ADAMSModePiscreated.)囹已6

oCon6g.Ma

?,SelectOK.⑷口DoojnenUandSettings

(d),SelectFile/SaveDatabasefromtheCtrl+Q

ADAMS/V>ew200520tJateHewFolder

dropdownmenu.C4rcei

fileEditguild

ThefileissavedasNewDaUbaseCtrl*N

OpenDatabaseCtrl?O

rank_rocker_mechanism.bin

SaveDatabase

infolder'ADAMSModel\SaveDatabaseAs

Import

1.7SimulatingModel

(a),ClickInteractiveSimulation

Controlsbutton.

(5),InEndTimetextfieldenter

6.283.(6.283*180/pi=360°).

O.InStepstextfieldenter100.

(d).ClickStartorcontinue

simulationbuttontostart

simulation.

1.8MeasuringModel

1.5.12.1CreatingMarker

G).SelectMarkertool.

0.Click(350,0,0)point.

MARKER_18iscreated.

Animation

ConsinjciionGeomeltyMarked

1.5.12.2MeasuringAngleofRocker

0SelectBuild/Measure/?\ngle/Newfromthedrop

downmenu.

0.InMeasureNametextfieldinAngleMeasure

dialogbox,enterMEA_ANGLE_3.

?,Right-clickFirstMarkertextfield.Select

Marker/Pickfromthedropdownmenu.

⑥.Clickthetopendofrocker.

FirstMarkertextfieldisfilledwithMARKER_4.

O.FillMiddleMarkertextfieldwithMARKER_3

(thebottomendoftherocker).

(D.PutMARKER_18intoLastMarkertextfield.

?,SelectOK.

XMEA_ANGLE_3

1.5.12.3MeasuringAngleVelocityofRocker

Right-clicktherocker.

⑥.SelectPart:Rocker/Measurefromthe

dropdownmenu.

0.InMeasureNametextfield,enter

MEA_ANGULAR_VELOCITY_3.

(d).InCharacteristictextfield,select

CMangularvelocity.

O.FromComponentlist,selectZ.

0.SelectOK.

Themeasureresultappears.

Saiact

Modly

Appeaiance

IMo

Ow

DeHe

Rename

(De)dc*v^e

2.GearTrain

2.1ProblemDescription

Intheplanetarygeartrainshown,thetooth

numbersoftwogearsareZj=40,Z2=20,andthe

moduleofthegearsism=5mm.Thesungearis

fixedtotheground.Thedrivinglinkisarm,andits

angularvelocityisG)H=30dcg/s.

Thisproblemasksfbrtheangularvelocityof

planetgearrelativetothearm.

2.2CreatingGears

Inthistutorial,wewilluse

Solidworkstocreategears(beginfrom

nextpage).Ifyoudonothavesuchkind八

v?)Cyfcnder

H囚

ofsoftware,youcancreateCylindersto|N0wPart

a區(qū)

simulatethegears.PLength

副

12畫

(a),SelectCylindertool.I

RRA4III?

C劍

0.Createbigcylindertosimulateplanet

gear.同IflMl

0.Createsmallcylindertosimulaiesun

gear.

Rotatetwogears90"aboutyaxial.

Note!Beforerotating(hegears,make

surethegearsareselected.

Note!Youshouldcontinuefrom2.4.8if

youusecylinderstosimulatethegears.

2.2.1CreatingSunGearSpurGe.

StartingSolidworksandcreatinganewpart

file.

(a).ClickDesignLibrarybutton.

0.SelectToolbox/AnsiMetric/Power

Transmission/Gears.

O.Right-checkSpurGearicon.

0.SelectCreatePart

O.InSpurGeardialogbox,enterthe

parametersofthesungear.

?.SelectOK.fOKCancel|Heb|

O.SavethegeartoSunGeanx_t.

Ateoamr

Savesjpe|ParasoWC.xjjjJ

2.2.2CreatingPlanetGearDesignLibrary-W

Creatinganothernewpartfile.

Q.ClickDesignLibrarybutton.-<?De?gnLt?farya蒯

cJamotations

0.SelectToolbox/AnsiMetric/PowerEE)Oassembles

Transmission/Gears.WeToobox—*

S)OAnsiInch

Q.Right-checkSpurGearicon.0J'An$iMetric

g)?二Bearrp

0.SelectCreatePartP?tNumber:

aJBotsandScrews

G山"PartNumbet

aONuts

Q.InSpurGeardialogbox,enterthe「UstbyDescfption

3C-?PowerTransmtssior

parametersoftheplanetgear.I3

De^cfpUon.

?.SelectOK.

Add|Edit

O.SavethegeartoPlanetGear.x_t.

(f)OKCmcd|H+

2.3StartingandMakingSettings

G),StartAdams(Doublc-clicktheshortcutofADAMS-Vicw).

⑥.Createanewmodel.ThemodelnameisGear_Train.

0.SetWorkingGridasalongXto300andYto200,gridspacingforXandYto10.

0.SettheIconsizeas20.

Howwouldyou*?to

GCftrtf?newmoM

「Op?n8emtngMabase

「trnpotatte

rX

2.4CreatingModel

2.4.1ImportingPlanetGear

G).SelectFile/Importfrom(hedrcpdownmenu.

?,SelectFileTypetoParasolid.

?.SelectfilePlanetGear.x_tinFileToReadtextfile.

?,PickorenterGear_TrainforModelName.

?.SelectOK.