most trainningWord格式文档下载.docx

most trainningWord格式文档下载.docx

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•Easytoapply

•Systematic

•Accurate（100%performancelevelat82BSI）

•Reduceapplicationerrors

•Canmeasureworkinalmostallsectors

•Consistenttimestandard

RatingScaleofBasicMOST

•ThebasicMOSTsystemisaratingscaleof82BSI（BritishStandardsInstitute）builtintothePMTS（Pre-determinedmotiontimestandard）value.

•ThisPMTSvalueassumesthataqualifiedoperatorwiththenecessarytrainingandpracticewouldbeabletoachievethetimesetfromproperanalysisofworkmethods

•75BSI~normallevel

•82BSI~qualifiedlevel

•100BSI~motivatedlevel

BasicMOSTMotionSequence

Focusingon……

•Movementofhands

•Movementofbody

•Assemblymethods

•Completecycleofworkactivities

•Materialhandlingtime

•Toolhandlingtime

UnitofMOST

•TMU~TimeMeasurementUnit

1TMU=0.00001hr

=0.0006min

=0.036sec

or

100TMU=3.6sec

MotionofSequence

MOSTbreaksallmanualworksinthreesequences

•GeneralMoveSequence

•ControlledMoveSequence

•ToolUseSequence

GeneralMoveSequence（GMS）

•dealswiththespatialdisplacementofanobject,undermanualcontrol,theobjectfollowsanunrestrictedpaththroughtheair

•theobject/partisfree

•theobject/partisnotattachedtoanotherobject/part

•norestrictionalongpathofmovement

•thesequencedescribesGET/PLACE/RETURN

•sequenceformula

ABGABPA

Ø

AActiondistance

BBodymotion

GGaincontrol

PPlacemotion

•ABGGaincontrolsequence（startthework）

•ABPPlacesequence（completethework）

•AReturntooriginalposition

example:

1.walk3steps

2.bendandrisetopickuptheobject

3.Walk3stepsbackandplacetheobject

A6B6G1A6B0P1A0

sumofindices=20

TMU=20x10

=200

or7.2sec

ActionDistanceParameter-A

•coverallspatialactionsofthefingers,hands,feet（numberofsteps）andloaded/unloaded（withheavyobject）

•A01361016

•A0denotesshortreach-reachof<

2”

•A1denoteswithinreach-objectiswithinhandreach,nowalkingrequired

•A3denotes1–2steps-outofreachobjectwhichrequires1–2stepsofbodydisplacement

•A6denotes3–4steps

•A10denotes5–7steps

•A16denotes8–10steps

•1step~30”

（example:

10’=12’/30”x10’=4steps）

•pleaserefertoMOSTdatacardformoreindex

BodyMotionParameter-B

•B361016

•B3bendandrise（50%）,benddownorriseuponly

•B6bendandrise

•B10sitorstandwithmanipulativemovements

•B16passingthroughdoor

GainControlParameter-G

•coversallmanualmotions（fingers,handsandfeet）requiredtoobtaincompletecontrolofanobject（s）andsubsequentlyrelinquishthatcontrol

•G136

•G1lightobject,gripbyonehandortwohands

•simultaneously

•G3objectisheavyandbulky,blindorobstructed,

disengage,interlockedandcollect

•G6objectisdifficultyheavy

PlacementParameter-P

•coversallmotionsinthefinalstageofanobjectdisplacementforthepurposeofaligning,adjustingorputtingasidebeforecontrolisrelinquished

•P0136+1

•P0objectisbeingholdnotplaced,orobjectistossedattheendofactiondistance

•P1objectislaidasidewithoutadjustmentoralignment,loosefitwithnopressuretoengagetheobjects

•P3lightpressureduetoclosetolerance,adjustmentrequired,doubleplacement

•P6careandprecision,extremevisualandmuscularcontrolisneeded,heavypressure,blindorobstructed

•P+1whentheplacementrequiresaninsertionof

>

2”but<

12”

FinalA

•thelastAcanbeusedfor

–returntooriginalpositionbywalking

–gettingthehandsoutofthewayofanobject

–walkandslidewithoutobstruction

MOSTMotionFrequency

•CycleFrequency（cf）

thesamesetofmotionsarecarriedoutagainandagain

•RepeatFrequency（rf）

oneofthemotionisrepeatedmanytimeswithinthesamecycle

GeneralMoveSequenceApplicationExample

1.Takeahandfulofcoinsfromthepocketandplacethe1dollarand50centscoinintoavendingmachine

A1B0G3A1B0（P6）A0rf.=2

TMU=170

2.Takeapaperclipfromthetrayandattachittodocumentheldintheotherhand

A1B0G1A1B0P3A0

TMU=60

3.With2handstakeaheavypartfromatable,walk5steps,placethepartonatoteboxlocatedonthefloorandreturntothesametable

A1B0G3A10B6P1A10

TMU=310

4.Pickupapieceofwire（10”length）withrighthandandinsertsitintoatinypinholeof2mmdia.

A1B0G1A1B0P6+1A0

TMU=100

5.Anoperatorstandsupwithchairmanipulationandpickupascrewdriver.Hewalks20stepsawaytositdownwithchairmanipulationandputsdownscrewdriverontheworkbench

A1B10G1A32B10P1A0

TMU=550

6.Fromaseatedposition,pickupaheavybasketandplaceittoanotherworkbench8stepsaway

A1B10G3A16B0P1A0

7.Righthandremovethefittingcapfromamarkerpenbeingheldbylefthand,putasidebothcapandmarkeronthetable

A1B0G3A1B0P1A0

8.Anoperatorstandinginfrontofabenchgetsaheavypartfromthefloorandplacesitonthebench.Thebenchtothepartis10stepsaway

A16B6G3A16B0P1A0

TMU=420

9.Using2hands,simultaneouslypickupascrewdriverandspannerlyingonatablewithinreachandplaceinanopentoolbox

A1B0G1A1B0P1A0

TMU=40

10.Whilesitting,collectseveralsheetsofpapertogetherandjogagainstdesktoptostraighten

A1B0G3A1B0P3A0

TMU=80

11.Anoperatorgetaletterfromaboxwithinreach,deliversittoanofficeupstairs.Hemustpassthruadoor,puttheletteronthetable,leavetheofficeandclosethedoorandreturntohisstartingpoint

A1B0G1A67（B16）P1A67rf=2

TMU=1690

ControlledMoveSequence（CMS）

•dealswiththemanualdisplacementofanobjectoveracontrolledpath;

themovementoftheobjectisrestrictedinatleastonedirectionbycontactwith,oranattachmenttoanotherobject

ABGMXIA

BBodymotion

MActuate

XProcessTime

IAlign

ABGGaincontrolsequence（startthework）

MXIMovecontrol（workisbeingmanipulated）

AReturntooriginalposition

•M~

movecontrolled,coversallmanuallyguidedmovementoractionsofanobjectoveracontrolledpath

•X~

processtime,occursatthatportionofworkcontrolledbyprocessesormachineandnotbymanualactions

•I~

align,referstomanualactionsfollowingthecontrolledmovetoachievethealignmentofobjects

•example:

1.reachtheknobonthemachine

2.tightentheknob

A1B0G3M3X0I0A0

sumofindices=7

TMU=7x10

=70

MoveControlParameter-M

•M1361016

•M1button/switch/knob

thedeviceisactivatedbyashortpressing,movingorturningactionofthefingers,handsorfeet

•M1push/pull/pivot

theobjectisdisplacedbymovementofthefingers,handsorfeet<

12”（or30cm）

•M3push/pull/pivot

theobjectisdisplacedbymovementofthefingers,handsorfeet>

shortactionsmaybeincludedtounlatchorunhooktheobjectpriordisplacement

resistance,seat/unseat

noticeablehesitationandmuscularforceisrequiredtoovercomefriction;

itmayrequiredtoseatorunseattheobjectorsimplytosustainmovementoftheobjectagainstresistance

•M3highcontrol

movementisslowedtowithintolerancelimits,preventinjuryordamage,ormaintainaspecificorientationoftheobjectduringacontrolledmove.Theremustbeeyecontact

withtheobjectandits

surroundingseither

duringorattheendofmove

•M32stages<

12”（30cm）

objectdisplacedintwodifferentdirectionsorincrement<

12”（30cm）perstageandwithoutrelinquishingcontrol

•M62stages>

objectdisplacedintwodifferentdirectionsorincrement>

2stagesmovementofvaryingdistance

2stagesmoveinwhichthedistanceofonestageis<

12”andtheotherstageis

>

12”,theactivitymustbeanalyzedwithtwocontrolledmovesequences

•M103to4stages

objectdisplacedin3or4directions

•Mcrankmachine

withtheforearmpivotingattheelbow,theobjectordeviceismovedinacircularpathbythefingers,handandforearm.Indexvaluearebasedonthenumberofcrankingrevolutionsobserved,roundedtothenearestwholenumber.

Diameterorresistanceisnot

considered.

ProcessTimeParameter-X

•Xeexactclocktime

fixedtime,process/machinecontrolledfixedsettingtime

•Xpvaryingprocesstime

estim