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ProductionValidatiom設(shè)

產(chǎn)

認(rèn)DesignVerificationamdWelcomeFcnd

Technical

Education

Program福特技

術(shù)

訓(xùn)

目SystemsEngineeringFundamentals系統(tǒng)工程基本原理FMEA失效模式后果與分析Ex

ental實驗設(shè)計ParameterDesign參數(shù)設(shè)計esignerimFTEP福特技術(shù)培訓(xùn)項目T公差設(shè)計ignnceeseraDolGlobal

8D

全球8DStatisticalReliability可

性AppliedConsumer

Focus應(yīng)用顧客的關(guān)注En

ng計工程學(xué)ineeri設(shè)計驗證&生產(chǎn)確認(rèn)&PVDVCourse

Structure對授計金以課程結(jié)構(gòu)ToolsforDV

&PV設(shè)計驗證及生產(chǎn)確認(rèn)的工具Vehicle

Level

DV整車級別的設(shè)計驗證System/Sub-SystemLevelDV系統(tǒng)/子系統(tǒng)級別的設(shè)計驗證Component

Level

DV零部件級別的設(shè)計驗證System/Sub-System

Level

PV系統(tǒng)/子系統(tǒng)級別的生產(chǎn)確認(rèn)Component

Level

PV零部件級別的生產(chǎn)確認(rèn)SummaryDesignVerification

andProductionValidation設(shè)

和生

產(chǎn)

認(rèn)DesignVerificationand

ProductionValidation生產(chǎn)確認(rèn)N設(shè)計驗證和Benefitto

Ford

MotorCompany對

司的

處DesignVerificationandProductionValidationDesignVerific設(shè)葉

產(chǎn)

認(rèn)設(shè)計驗證

asdesigned,a

productwillfunction

inthemannerthatthe

customerexpects.●

根據(jù)設(shè)計狀態(tài),

一個產(chǎn)品的功能要符合顧客所期望的方

式。ProductionValidation:生產(chǎn)確認(rèn)asmanufactured,aproductfunctions

inthemannerthatvolumes.根據(jù)制造狀態(tài),

一個產(chǎn)品的功能要符合顧客所期望的方

式,而且能以所要求的產(chǎn)量進行生產(chǎn)。thecustomerexpectsandcanbe

manufactured

at

requiredDV&PVWithinSystemsEngineering系統(tǒng)工

程內(nèi)

的DV&PVSystemicThinking系統(tǒng)思想Verificationand驗

和DesignVerification

設(shè)計驗證EngineeringTargets工程目標(biāo)Customer

Wants

顧客的需要RequirementsCascade需

遞·WorkinginaSystems

Engineeringcontextsupports

systemicthinking.●系統(tǒng)工程中的工作支持系統(tǒng)的考慮·

OppositeofTraditionalapproachtoengineering.●

與傳統(tǒng)的工程高潔想

后VehicleSystemSub-SystemComponentSystems“V”Model系統(tǒng)V模

is

a

requirements

driven

process·

DV&PV

isbestconducted

inasystemsengineeringcontext

through

the

systems

V.●·DV&PVDV

和PV是一個需求驅(qū)動的過程Sub-SystemComponent型的系統(tǒng)工程中

最好的VehicleSystemDV

和PV實施。Defining

Requirements定

求·Therequirementscascadedownthe

left

side.●需求的逐級傳遞如左側(cè)●

The

cas該逐級傳,tive

process.過程Sub-SystemComponentSystemVehiclepLaN2-20VerificationBottom-up

驗證自下至上●’Verificationtesting

is

implementedasa

bottom-up

sequentialprocess.·

驗證試驗是按照自下至上的順序過程執(zhí)行的Verification

may

include

a

combination

ofAnalytical

andphysical

Vehicle理試驗的組SystemSub-SystemComponent驗證可能色工

序反

復(fù)

計Cz-2zaLp劃…0125Plan

Do,Study,ActPlan計劃Do,Study,Act做,研究,行動Sub-System子系統(tǒng)Component

零部件Do,Study,ActDo,Study,ActDV

&PV

and

PDSAVehicle

整車System系統(tǒng)PlanPlan低

別的

用LowerLevel

Interactions較SystemsApproachto

Manufacturing進

造的

統(tǒng)

法制

造ManufacturingPlant

廠Assembly

配Operation

操作Machine機器設(shè)計DesignVehicle整車System系統(tǒng)Sub-System子系統(tǒng)Co

mponent零部件FPDS

M25.5VehickSystem

testingcomplete子系統(tǒng)和系統(tǒng)試

.5

a驗完成DVPcompleteDVP完

成T

—-

FSub-sys

level2&ComponentDVPCreated生成子系統(tǒng)級別2

&零部件DVPApprgwal

TralhgFull

DVP

CreatedReqts&Targets

Frozen

生成完整的DVP需求&目標(biāo)凍結(jié)Vehicle

level,System

level&Sub-sys

level1DVPCreated生成整車,系統(tǒng)&

子系統(tǒng)的DVPPrapuct

Change

Launch

FinalReafiness

Cut-Cff

Sign-Oft

StatusC

n,

R

ess

A

v

de1hiocJeadinLatnchtypematioof

irnPoVehicletestingcomplete:Final

EngSign

Off整車試驗完成:最

終工程簽發(fā)StrateginIntents!rateg

icConfirmationPre

portions

&HardpointsFPDS

間Sub-systemandSystemSubsystemComponent

STFPDSTimingComponenttestingcomplete零部件試驗完成Engineering

RalsasePowertrainFinalCompleteFrogramKick-oSuDesign“V”and

FPDSTiming

DV&PV設(shè)計V形圖及FPDS時間的DV&PVSlSCPAPRCPLRJ1High高ActivityLevel活動級別■■

■■■---

-L

間Verification設(shè)計驗證nn□

nn■

■■■■■■=Production

&Process

Validation生產(chǎn)&過程確認(rèn)Designime時低owAd

—(S7)Ad—(&7)?O—(DD)

。:晉學(xué)異多袞羈關(guān):?les?uots?l!u

Jjo

ub!Sk?>。*墨明羈關(guān)晉貿(mào)米學(xué)離組目血毒

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ejoJjou6!slojsqu?w?l!nb?lk?x?le?d8AQ·SOda

pue

Ad8Aduel6oidinputs

Used

intheVerificationandValidation

Processes在驗證和確認(rèn)過程中使用的輸入RealWorld

Usage

Profile真正的顧客使用狀況P-DiagramP圖ConceptandDesign

FMEAs概念和設(shè)計FMEASDSR

ir求nts的需emeSDSequDVPlan設(shè)計驗證

計劃Engineering

Specifications工程技術(shù)規(guī)范LegalRequirements法規(guī)要求Key

LifeTests關(guān)鍵壽命試驗Existing

DVPs現(xiàn)有

的DVPGeneric

DVMs

般DVMHistorical8Ds

歷史上8DDV&PVas

Partofthe

ProductCreationProcessDV

和PV作為產(chǎn)品

創(chuàng)

程的部

分·DVand

PVconfirmthatComponentsandsyste

mrobustly

meetcustomerrequirements●DV和PV確認(rèn)零部件和系統(tǒng)殷實可靠地符合顧客的需求?!V&PVtesting

is

notexploratory●DV和PV

試驗不是探險Testingshouldbeagainstexpectedresultsnot

to

find

out"whathappens

if"試驗應(yīng)該是針對所預(yù)測的結(jié)果而不是去發(fā)現(xiàn)“如果.會怎樣”DV&PVcomesafterthedesignphase

notduring

the

designphaseDV和PV要在設(shè)計以后而不是在設(shè)計階段中進行Introductionofthe

FEADExampleFEAD舉

紹FEAD

Example

FEAD

例·A

single

syster

be

used

to

der

使用

個單獨

DV&PVessoryDrive)will驅(qū)動)來示范The

Front

EndAccessory

Drive

(FEAD)-How

It

WorksFEAD-

它如何工

作·

Thesourceofpowerinthevehicle

isthe

engine.●汽車內(nèi)動力的來源是發(fā)動機Partoftherotationalpower

outputfrom

the

engineneedstobetransmittedtothe

FEAD

accessories.來自發(fā)動機轉(zhuǎn)動動力輸出的一部分需要被傳輸

到FEAD

附件上。The

FEADtransmitsthisenergyFEAD

傳輸該能量DesignVerificationatAll

Levels所有級別上的設(shè)計驗證Design

Verificationshouldoccuratall

levelswiththeemphasis

beingatthe

lowerlevels.設(shè)計驗證應(yīng)該重點放在較低級別的情況下在所有級別上

行。

ProductionValidationitis

important

tover先c驗證設(shè)計是重要的It

isequallyimportanttovalidatethatthe

productioni

i

belt

is

able

to

produce確認(rèn)制造皮帶所使用的生產(chǎn)過程能夠生產(chǎn)出符合設(shè)計

規(guī)范的皮帶同等地重要。Forexample,the

beltasmanufacturedmust

beableto

transmit

therequiredamountof

torque.ontheatrepecificufactusngnmasoetddtheusetosstsceelro·

如,

的#小的扭矩。Confirming

Robustand

Reliable

Design

Robustness確認(rèn)殷

設(shè)

-

性首

明Ad&A0AdA

OSIOO⊥2

NTaa

teseeVeredtion在有效且高數(shù)

效證和霸效迫程命研使角用的重秀法是

·

Robust

Engineering

Design

Philosophy(RED)·

殷實的工程設(shè)計基本定律·

Ford

DesignVerificationSystem(FDVS)●

福特設(shè)計驗證體系·

TestingMethodologies,·

試驗方法學(xué)*

RealWorld

Usage

Profilesand

DutyCycles真正全球顧客使用的概況和工況AcceleratedTests,加速試驗Key

LifeTests(KLT),關(guān)鍵壽命試驗ComputerAided

Engineering(CAE)計算機輔助工程DesignofExperiment(DoE).實驗設(shè)計Robust

Engineering

Design(RED)殷

實的

設(shè)

計RobustTest

PlansRobusttest

phnsipDYRPYingoporae

Nqisefactorsandtheir

effects

inordeoensUle

lhatthe

pkoductwieetitsdesignintent

underallconditions.Noisefactorscanbegrouped

into

fivecategories:為了確保該產(chǎn)品在所有條件下都符合其設(shè)計意圖,

DV

和PV中殷實的試驗計劃合并了干擾因素及其他們的影響。干擾因

素可以分成5類:Piece-to-Piece

Variation件與件間的變差ChangesOverTime隨著時間過去的變化CustomerUsage顧客的使用External

Environment外部環(huán)境SystemInteractions系統(tǒng)間的交互作用2NSe兒S

e

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題isguiseDevice補償裝置hetCompentsaionReduceNoemo

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Design殷

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primarily

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must

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REDwildrivethe

typeofDV&PVteststhat

needtobeundertaken在DV

PV中必須考慮到

RED,

為RED

將決定

需要采取的DV&PV試驗的類型。REDfocuseson

identificationandmanagement

ofnoisefactorsRED著重于干擾因素的識別和管理n

toost

EngudesiRob●RobustEngineering

Design殷

靠的

設(shè)

計REDisinherentinthesystemsVandrunsthrough

allphases

oftheV●

RED

是系統(tǒng)V內(nèi)固有的,并且貫穿系統(tǒng)V的所有階段RED

isateam

based

processRED是以小組為基礎(chǔ)的過程

tu

esign

andRED

應(yīng)用于整個福特(設(shè)計和制造)以及供應(yīng)

商。sDlierdpopFsutoahanouManufacturingREDappliesthApplying

RED

應(yīng)用REDREDallowstesting

atthe

lowestpossiblelevelRED

允許在最低可能性級別進行測試Cautionmust

be

usedd必須使用警示RedAppliedtoVehicle

LevelTestingRed

應(yīng)

別的

試REDAppliedatSub-System

Level

RED

應(yīng)

統(tǒng)

別·Whendeveloping

DesignVerification

MethodsatInteraction

Noisefactorsthatarepresentinthetotalvehicleenvironmentareincluded.當(dāng)開發(fā)系統(tǒng)/子系統(tǒng)或零部件級別的設(shè)計驗證方

法時,重要的是確保要包括整個汽車環(huán)境中出

現(xiàn)的系統(tǒng)交互作用干擾因素的影響。thesystem/sub-systemorcomponent

level,it

isimportanttoensurethattheeffectsofSystemAt

R

eeliedtGonpersnY

interactioR

othcomp的

及s零部件級別的試驗是最有效的,但失去了與其他零件的交互作用·

Testplans

mustcompensateforthis

loss

by

reproducingthekey

stressesfromtheinteractions·

試驗計劃必須通過再制造來自交互作用的關(guān)鍵應(yīng)力彌補這一

損失Muchcomponenttestingmaybedone

at

suppliers.許多零部件試驗可能在供應(yīng)商處進行。Suppliersmustapplythe

sameRED

methodolgies供應(yīng)商必須應(yīng)用相同的RED方法Tosupportthis,Fordengineersneedtocascade

noisefactorstothesupplier為了支持這個,福特工程師需要逐層傳遞干擾因素直到供應(yīng)

商REDin

theDesign

Process

設(shè)

的REDWCR

KLT

DVP&RSignal

號Energy

put

intothe

systems

tomake

itwork(e-g-.Sreeringwheel

angle)能量進人系統(tǒng)使

作例加….方向些轉(zhuǎn)角)System(Steering

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e

Fth

ithat

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理想功能Primary

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Undesirable

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Mode失效模式Test試驗CriticalNoiseFactors關(guān)律干擾因素DemonstratedResult論證的結(jié)果Prevention

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DesignVerificationSystem福

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DV

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需求?!

DVSincludesa

numberofgeneric

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M

s(DVMs)

Program

Teams

整車要求ericodenhGetFord

DesignVerificationSystem-FDVS福

設(shè)

統(tǒng)

-FDVSFDVS

乘計法人的要求技術(shù)規(guī)范設(shè)計驗證方法(項目專有)項目專有的設(shè)計驗證計劃系統(tǒng)要求

(項目專有)R

qouri

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SpRequiremeDVM(項目專有)VehicleRequirements(Program

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ram

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Method

i

Feprviic治at

i

n

Methods(D

using在FDVS內(nèi)

,使用設(shè)計驗證方法(DVM)驗證需

求·DVMs

containallthe

information

requiredtoconducttestingandrecord

resultsDVM

包括所有要求試驗和記錄結(jié)果的信息startingpointtodevelopprogram

DMVs,but

theymustbe

reviewed現(xiàn)有的和一般的DVM能作為一個開始點用以開

發(fā)項目的DMV,但是它們必須進行審核seVMrfiotsignhinetExistingandGeneric

DVMscan

be

usedas

aTesting

Methodologies試驗方

法學(xué)TypesofTest·

p

或for

either

Desig

gic

ncProductionValidation:·有三種可以在設(shè)計驗證或生產(chǎn)確認(rèn)中實施的一般試驗類型·

Testingto

Bogey●標(biāo)準(zhǔn)測試Testingto

Failure測試至失效Testing

Functional

Degradation測試功能退化rnifntrmrebTMinimumAcceptabieFunction

最小可接受功能BogeyTime/Cycles/Miles

時間/循環(huán)/里程PassFailTestto

Bogey失效柱狀圖Failure

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u

n

c

t

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o

n

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u

n

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退化測試CBExample:Functional

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Alternatives范例:三種設(shè)計方案的功能退化Miles-—

Design

B(higherthe

better—

DesignAFunction-

Design

CDegradation退化Failure失效Bogey標(biāo)準(zhǔn)Test

LevelComparison

平比

較InformationQuality信息質(zhì)量Higher

高Cost成本Higher

高Lower

低Lower

低Test

Precision測

度Failureprobability失效概率Life0.10100001000StatisticalConfidence統(tǒng)

度Statisticalconfidenceforagiven

reliabilityestimate

isthe

probabilitythatthetruereliabilityofthe

population

isequaltoorgreaterthantheestimate.對于特定的可靠性預(yù)測,統(tǒng)計可信度是一種總體真實可靠性等于或大于預(yù)測情況的概率EngineeringConfidenceReducesSampleSize

工程可信度減小樣本量Reduced

Sample減少的樣本Min:1sample/failuremode最?。?個樣本/失效模式Test

Level測試水平Bogey參簽o

參心FailureSeverity

&

Occurrence失效嚴(yán)重度&發(fā)生FailureDegradationSample大樣

本Large名②Real

World

Usage

Profiles真

客使

用概

況TypesofCustomerUsage顧

使

用的

型Normal

use一

使

用Misuse誤用Abuse

?濫用?NormalUse一般使

用Misuse

用Abuse

用Existing

Data

現(xiàn)有數(shù)據(jù)DataSourcesInstrumentation

儀器數(shù)

據(jù)

源Observation

觀察Yourself

自身Percentiles

點5%Total】ActualCustomerUsage

真正顧客使用Ggtear?!

oistomaVE

HExample:Cooling

Fan

例E

ro

歐卻洲風(fēng)

扇Southern

EuropeanCities市歐城市Northern

三uropeanCities地Stress受力狀態(tài)U

sa

g

e

P

r

of

i

le

使

況D

u

t

y

C

y

c

le

況How

often

the

customeropens

a

window顧客開啟窗戶的頻次如何Number

of

switch

activations

or

motor

running

times

forthe

window

motor開關(guān)的次數(shù)或窗戶電機運轉(zhuǎn)

次數(shù)Climate

or

outsidetemperature

ranges

in

whichthe

vehicle

operates車輛運轉(zhuǎn)時的氣候或外界溫度的范Air

conditioning

systemfrequency

of

operation

ando

a

d

調(diào)

統(tǒng)

轉(zhuǎn)

負荷Usage

ProfileandCustomerDuty

Cycle

使

況Engine

RPMDutyCycle

Example工況范例同步齒形帶發(fā)動機工況綠線:

一般顧客紅線:苛刻顧客注:皮帶負荷在低轉(zhuǎn)

速時更苛刻Note:Belt

loads

are

more

severe

at

lower

RPM.AcceleratedTesting加

試AcceleratedTesting加

試Purpose:目的:Accumulate

productstress

history

inashortperiodoftime在短時間內(nèi)累積產(chǎn)品應(yīng)力史Shortenverificationtime

&reducedevelopmentcosts縮短驗證時間&

減少開發(fā)成本AcceleratedTestingMethods加

法Load

Frequency

over

a

Specified

Test

Procedure

在指定的試驗規(guī)程上加大加載頻次40030%

60%

100%Percent

Frequency

of

Occurrence發(fā)生頻次的百分比NormalLoad正常負載

■IncreasedLoad加大負載portion

of

procedure

with

increased

loadsDefineAcceleratedTest

basedon

this以加大的載荷在這部分試驗規(guī)程的基礎(chǔ)上定

義加速測試50

mph

Freeway

50

mph高速公路climbing

hilll

in

1st

gear

一檔爬山3002001000L

o

a

d

荷AcceleratedTestingCautions加

示Correlateaccelerationtorealworlddeterioration

使其加速形式與真正顧客使用的退化情況相關(guān)聯(lián)Prevent

unrepresentativefailuremodes預(yù)防不具備代表性的失效模式Notallfailuremodescan

be

accelerated不是所有的失效模式都可以加速的Key

LifeTests關(guān)

鍵壽

驗Key

LifeTests關(guān)

驗Key

LifeTestsfocusonthekeystress(es)whichdrive

loss

offunction

and/or

failure

w

h

associated

with

real關(guān)鍵壽命試驗著重于會促使真正顧客使用相關(guān)的功能損失和/或失效機理的關(guān)鍵應(yīng)力gemsaissnuadcleormKey

LifeTestsA

Key

LifeTest:

關(guān)

驗一

個關(guān)鍵壽命試驗●

Is

basedontheRWUP是以RWUP為基礎(chǔ)的·Provides

atooltoevaluate

product

reliability提供了一個工具以評估產(chǎn)品的可靠性t

o

p

eo

sdigens

g

i

competitive使其與競爭產(chǎn)品進行設(shè)計的比較,從而可以確定最佳設(shè)計

Validatesmodelsandassumptionsinthe

design

process在設(shè)計過程中確認(rèn)模型和設(shè)想Validatesthedesign確認(rèn)設(shè)計be

identifiedenchmarkedcathnwisstebft

thsonarithasomsccsproduAllowKey

LifeTests關(guān)

驗ISNot否IS是Reliabilityand

RobustnessDemonstration

Matrix可

殷實可

靠性

證矩陣

圖DVMErrorStateCriticalNoiseFactorsDemonstratedResultFEAD

Tensioner

DurabilityPremature

wearShock

LoadTemperaturee●·Reliabilityand

Robustness

Demonstration

Matrix可

靠性

矩陣圖Reliabilityand

Robustness

Demonstration

Matrix(RRDM)capturesanddisplavsthekevverificationmethods

andallCritic

Reliability/Robustness

Demonstration

Matrix(RRDM)關(guān)鍵干擾RRDN因素High,LovvSelfAssessment自

我評

估8Aaalp!ya?Adle??7Ad8AQVehicleLevelDV&PV整

的DV&PV●Verification

and

Validation

of

Vehicle

level

requirements●整車級別的驗證和確認(rèn)的要求llustrated

with

an

examplearoundarealworld

problem-Transit

FEAD穿插了一個真實問題的范例—Transit

FEADCustomers

wereexperiencing

problems

after

washing

theirvehiclesordrivingthroughwaterProblem

問題日Global

8D全球8D·

AGlobal8D

wasconductedonthevanjetspray

washingproblemthatwas

lookedatearlierandtherootcausewas

identifiedas

belt

slip.采取了全球8D方式來處理剛才看到的噴霧式洗

車的

問題,確

。Applying

REDHavingdeveloped立

根BE

problemthe●針對問題制定出解決方案,該小組需要驗證

其更改·

Verificationisa

key

partofthe8D

process,just

as

it

isforthe

PDP驗證是8D過程中的一個關(guān)鍵部分,就象其相

于PDP一

。Todothisthey

needtoapply

RED

principlesto

theverification為了進行該工作,他們需要把RED

的原理應(yīng)用

到驗證上。team

neededtoverifythechangeVerifying

Robustness

性Existingverificationmethodsusedas

astarting

point●使用現(xiàn)有的驗證方法作為起點·Fromstudyingthedata,theteam

newthattheexisting

DVM'swere

insufficient通過研究該數(shù)據(jù),小組發(fā)現(xiàn)現(xiàn)有的DVM還不充

分New

DVMsmust

include

REDconsiderations新的DVM必須包括RED需要考慮的事項FEAD

Sub-SystemDesign

Verification

MethodObjectivesToverifytherobustness

of

theperformance

oftheFEAD

system

inpresence

of

waterTestDescriptionDrivevehiclethrougha

25,50,75,and

100mmdeepwater

splash

in5

kph

increments

between

10

kph

and

50

kph.Measurables/ObservationsDifferentialrotationalspeedbetween

crankpulley

and

accessory

pulley(s).AcceptanceCriteriaDifferential

speed

less

than

5%.Resourcesand

Test

Equipment

RequiredNatersplash.Vehicleassessment

ofrotational

speedof

accessory

pulley(s)atknown

crankiengine

speedsRevised

DVM修

的DVMThe

DVMs

were·

PlanningoccursdowntheV-planthevehicle

levelfirst沿著V

形方式向下作計劃—首先計劃整車級別Verificationanc

VerifyandValidatetheve沿著V形方式后

證和確認(rèn)整車PlanningandImplementingVerification

andValidation計劃并實施驗證和確認(rèn)Global8Dand

DV&PV

球8D和DV&PVGlobal8D

studies

on

previous

similar

products

or●

對以前相似產(chǎn)品或過程的全球8D研究幫助識別潛在的

異常狀態(tài)Thisisanimportantinput

to

the

design

of

verification對于一個新產(chǎn)品或制造過程,這是驗證方法設(shè)計中的一個重要的輸入Verificationmethodsmustdemonstratethattheseerror

statesdo

not

recurinthe

new

productor

process.驗證方法必須證明這些異常狀態(tài)不會在新的產(chǎn)品和過

程中再次發(fā)生。methods

for

a

new

product

or

manufacturing

process.processes

help

identify

potential

error

statesSelfAssessment自

評八

醬孩寫

上房醬AQlD??T

u?1sAS

-qns/u?1sAsFEADSub-System

FEAD子

統(tǒng)·

A

FEADsysteprogram為一新車項目ewvehicleSub-System

Level

Design

VerificationForm

a

crossfún和

設(shè)

驗證·Testing

試驗Manufacturing

Supplier供應(yīng)商CAEQuality質(zhì)量Reliability可靠性Aim

to

verify

at

the

lowest

possible

level

on

the

V●·組成一個交叉功能的小組·Design設(shè)計T

Real

World

EngineeringUsage

ProfileSpecifications真實顧客使用概況

工程技術(shù)規(guī)范P-DiagramP

圖Conceptand

Design

FMEAs概念和設(shè)計FMEAReq

entsSDS

要求mSuireSDFEAD

DesignVerification

PlanDVPlan

DV

劃FEAD設(shè)計驗證計劃LegalRequirements法規(guī)要求Key

LifeTests關(guān)鍵壽命試驗Existing

DVPs

現(xiàn)

有DVPGeneric

DVMs一般DVMHistorical8Ds

歷史上的8DFEAD

FunctionandOperationFEAD

行·

Idealfunctionofthe

FEADistotransfertorquetotheaccessories●

FEAD

的理想功能是把扭矩傳遞給附件

·Irregularity

in

rotation

isa

key

noise●

旋轉(zhuǎn)不規(guī)則是一個關(guān)鍵的干擾Thetensionercompensatesforthenoise張緊輪對該干擾進行補償The

correct

functioning

of

the

tensioner

is

a

priorityforthe

FEADteam張緊輪的正確機能對于前端驅(qū)動附件組是最首要

。CustomerRequirements·

FEAD

SDS

Requi

求FEAD

SDS

要求·B

eltspanvibrationdoes

notexceed

10%ofbeltspan相帶寬度振動不超過相帶寬度的10%,要符合與其它零部件間的系統(tǒng)間隙要求。最大張緊輪振幅要與兩端止點留有總行程10%的間隙余量。ADVM

is

required

to

verify

this

requirement需要DVM

來驗證這一要求and

meetssystemclearancerequirementstoothercomponents.Maximumtensioneramplitudeleaves10%of

total

travelcleartoendstopin

bothdirections.·

Thereisanexisting

DVMforthe

requirement●對該要求有一現(xiàn)有的DVMTheteamneedtoassess

ifthis

DVMisappropriate

小組需要評估該DVM

是否合適Existing

DVTest

現(xiàn)

的DV

驗RED

inSub-System

DVSystemands希

統(tǒng)

ustincludeconsiderationofnoises●

系統(tǒng)和子系統(tǒng)級別的DVM

必須包括干擾需要考慮的事項I

ntheFEADexampleexcessivebeltvibrationwasidentifiedasacritical

errorstate.在FEAD的范例中,過多的皮帶振動被認(rèn)為是一

個關(guān)鍵的異常狀態(tài)The

DVMwasassessedtobe

inadequateforthisfailuremode

inthe

presenceof

noise評定該DVM在有干擾存在時對這個失效模式來說是不充分的FEADAcceptanceCriteriaFEAD驗收標(biāo)準(zhǔn)·

The

acceptancecriteriawasassessedbytheteamand小組評估該驗收標(biāo)準(zhǔn),發(fā)現(xiàn)涵蓋了SDS

的要求,但仍

需要小的改進。foundtocoverthe

SDS

requirement,but

needed

minorimprovement.ApplicationofRED·The

teamneedst與只的

ise

factors·小組需要考慮所有關(guān)鍵干擾因素·

Thekey

noisefactorswere

identifiedas:●確認(rèn)關(guān)鍵噪聲為:·Carryovertensionerinanewenvironment·在新的環(huán)境中借用張緊輪裝置·Accessory

loading附加載荷These

Noisefactorswere

nottaken

intoaccount

inthe

previous

DVM.在以前的DVM

中沒有考慮這些干擾因素Previous

RobustnessStudies·prevzs前的殿案用靠性研究。information·

之前的殷實可靠性研究是信息的關(guān)鍵來源·

The

teamcan

usethis

informationfortheirdesignandtesting●小組可以把這一信息用于設(shè)計和測試Thistypeofinformationcancomefrom

similar

or

differentvehicles這種類型的信息可以來自相似或不同的車輛Thesestrategieswere

incorporated

intothe

new

design.這些策略可以并入新的設(shè)計中·

The

design

team

did

not

think

that

the

objective

inthe

existing

DVM

covered

robustness設(shè)計小組不認(rèn)為現(xiàn)有DVM

中的目標(biāo)涵蓋了殷實可靠

性ZNACheckofDVM

ObjectiveDVM目標(biāo)的檢查FEAD

Sub-System

Previous

Design

Verification

MethodObjectivesAssessDynamicVibration

of

the

tensioner

andbelt.Toverifytherobustnessofthedampingperformanceofthe

FEAD

system

to

dynamic

vibration

of

theFEADbelt.FEADSub-System

Revised

DesignVerification

MethodObjectivesDVM

Test

MethodDVM

法·

Theteamthenturned

itsattentiontothe

test

method然后小組把注意力轉(zhuǎn)向試驗方法Thismethod

hadbeenusedon

previous

programs

buttheseprogramshad

experiencedfailures這個方法在原來的項目中曾被使用過,但是這些項目

已經(jīng)出現(xiàn)過失效Applying

RED應(yīng)用RED·AREDapproach,was

usedto

modifythe

DVM.●采用RED的方法修改DVMAG8Dstudy

hadbeenconductedto

resolve

the采用了全球8D

的研究來解決原來車輛上皮帶尖叫的問題TheG8D

iskey

informationfor

RED全球8D對于RED是關(guān)鍵的信息beltsqueal

problemonthepreviousvehicle.Global8DSummary

Report

8

D

總結(jié)

告Concern

Title:FEAD

-Vibration

noise

from

belt

and

tensionersOpen

Date:mrRotNo:aar4FEAD-Vibratlonnolsetromboltand

tenslonersStatus

Da

te:aaar

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