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11 的FMEA第四版參考手冊(cè)。 此手冊(cè)不是規(guī)定的要求,僅用于闡明

FMEA是什 FailureModeand 哪些原因可能行預(yù)計(jì)的產(chǎn)品/過(guò)程分顧客或造成這個(gè)失效模采取可行的對(duì)

可能產(chǎn)生的失效模 工序的影

體系(QMS)的要求,被VDA,ISO/TS16949等體系吸納和采用。ss空間計(jì)劃(NASA)開(kāi) 法將人類(lèi)送上月球并安全帶回地球程序(FMECA)–于 年月日 一種值得信賴(lài)的確定系統(tǒng)和設(shè)備失效的評(píng)估技

系子系

子系 子系

部 部

部 工序

工序 工序設(shè)MFMEA子系部

子系統(tǒng)子系統(tǒng) FMEA在哪里應(yīng)用高風(fēng)險(xiǎn)時(shí) 設(shè)計(jì)變更、技術(shù)變更、制程變應(yīng)用變更(新環(huán)境、新地點(diǎn)FMEA使用范123 設(shè)計(jì)FMEA過(guò) FMEA成功實(shí)施的關(guān)鍵因素是及時(shí)性–它必FMEA FailureModeCounterMeasureFailureModeToomuchCostofdevelo &

&

FailureModeCounterMeasureFailureMode

Costofdevelo &

&

Whencan sbe smustberetainedinaccordancewithGlobalInformationStandardsRecordRetentionDFMEAs:Lastuse+10yearsPFMEAs:Lastuse5years22DFMEA格

制 嚴(yán)級(jí)頻探R重別度測(cè)能功理DO探度N測(cè)求

如何實(shí)施FormerFMEA目質(zhì)量

Functional跨功能團(tuán)RobustnessToolsare穩(wěn)健的工具沒(méi)有被運(yùn)FMEAQualifiesandclarifiestherelationshipsbetween鑒定并說(shuō)明系統(tǒng)之間的關(guān)Identifies 識(shí)別并量化系統(tǒng)之間的相互作P-P-識(shí)別噪音因素,控制因素和誤差狀RobustnessFMEA(withRobustnessFMEA(withFMEA(有穩(wěn)健聯(lián)系的nDesign DesignFMEA–Oncecoreteamis Createaboundary創(chuàng)建界限Identifytheboundary 確定分析界Confirmcompositionofsupport確定支持小組的成

BoundaryDiagram–HeadlampConstructingBoundarycreatewearovertimeGOPGOPtoScrews-*DenotesRelationshipbetweenhardwarethatgoesonInterface

*BodytoScrews *Snapfitto*Snapfitto*ElectSys.

*GOPto&-Road

Housingto locationto

*HoodadjusterdepthtoHousingChangeOver-Material-Material-Material-RoadNote:Onlythehardwarecomponentsappearinboxesonaboundarydiagram.Onceallofthehardwareisidentifiedbyblocks,therelationshipsbetweentheblocks,indicatedbyaboxwithadottedlineandan“Note:BoundaryDiagramitemsnotshowninboxesareP-Diagramnoisefactorsthatcanleadtofailures.Note:GOPistheabbreviationforGrillOpeningConstructingBoundarycreatewearovertimeGOPGOPtoScrews-*DenotesRelationshipbetweenhardwarethatgoesonInterface

*BodytoScrews *Snapfitto*Snapfitto*ElectSys.

*GOPto&-Road

Housingto locationto

*HoodadjusterdepthtoHousingChangeOver-Material-Material-Material-RoadNote:Onlythehardwarecomponentsappearinboxesonaboundarydiagram.Onceallofthehardwareisidentifiedbyblocks,therelationshipsbetweentheblocks,indicatedbyaboxwithadottedlineandan“Note:BoundaryDiagramitemsnotshowninboxesareP-Diagramnoisefactorsthatcanleadtofailures.Note:GOPistheabbreviationforGrillOpening裝配和加 InterfacemendedrobustnesstoolthatactsasaninputtoaDesignIdentifiesand fiesthestrengthofsystemin ShowingwhethertherelationshipisnecessaryorExampleInterfaceHeadlampUpperCrossAdjusterPEP:Physically E:EnergyIMI:Information M:MaterialNumbersineachcornerrepresenttheaboveinterfacetypes,withvaluesdenotingthefollowing:+2 ctionisnecessaryfor+1Inctionisbeneficial,butnotabsoluynecessaryforfunctionality0 ctiondoesnotaffect-1Inctioncausesnegativeeffectsbutdoesnotpreventfunctionality-2 ctionmustbepreventedto -2- Headlamp222 - UpperCross222-1-------Adjuster22-2ctionmustbepreventedto-2ctionmustbepreventedto-2preventHood22UpperCrossMemberPEIMP:Physically E:PEIMI:Information M:Materialctiondoesnotaffectctioncausesnegativeeffectsbutdoes0ctiondoesnotaffectctioncausesnegativeeffectsbutdoes0-1forctionisnecessaryfor ctionisbeneficial,butnot y+2+122HeadlampHousingAdjustersocketAdjustersocket22 DFMEA: mendedstructuredtooltoidentifyintendedinputsandoutputsforafunction Describesnoisefactors,factors,idealfunction,andPotentialCaer

Mod

n

en?

???? 可以調(diào)整這些參數(shù)以對(duì)應(yīng)由于干擾因數(shù)的出現(xiàn)導(dǎo)致的失效模干擾因內(nèi)部干1、零件特性引起的變差擾因數(shù)2、由于耗損、疲勞、化學(xué)外部干3、顧客使用周期的不同擾因數(shù)4、外部環(huán)境因數(shù)5、內(nèi)部環(huán)境及部件之間

原多次使用的老使用條P-

DesignFMEA設(shè)計(jì)FMEA的功FAILUREMODEAND

et

&Target

ActionResults SO

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DetermineFAILUREMODEAND SDOS&TargetDOofFailureCWhatisDesignintentorengineeringWritteninverb-nounmeasurable的,可以測(cè)量的動(dòng)名詞格Representationofallwants,needsandrequirements,bothspokenandunspokenforallcustomersandsystemsDescribeNounNoun名VerbIndicateswhattheactionrelatestoIndicatesaction,occurrence,

SeatExerciseincreativethinkingMethodtogenerate通過(guò)創(chuàng)造性思維找到解決辦法的練Brainstormallfunctions(VERB- individualfunctionsbyasking “HOWisfunctionachieved?”Repeatlefttoright,untilactionableUseworksheettocheckthatactionablelevelisWorkrighttoleftandcheckstructurebyasking“WHYisfunctionincluded?”ConstructingFunctionHOW如何做

Second第二

WHY為為什么FirstFirstThird如何來(lái)實(shí)現(xiàn) 為什么

把燈水平定為1015萬(wàn)英里的行把燈垂直定為1015萬(wàn)英里的行PotentialFailurePOTENTIAFAILUREMODEANDEFFECTSANALYSIte

Failure

CPotentia Effect(s)o

OPotentia Cause(s

CurrenDesignContro

De R

Recommende

&Target

ActionResuAction S

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Failu

Mechanism(s

–Preventio

eP

Action(s

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cN

tN

PotentialFailureNoPartial/OverFunction/DegradedOverIntermittentUnintendedFailureModes--VerticalFunction:AdjustLightBeamY°FailureMode

PotentialFailureNofunctionDegradedOverTimeIntermittentUnintended

NoadjustmentAdjustmentinoneAdjustmentsometimesandnotatothers(notincold)None沒(méi)有功非預(yù)期的功

不知響(顧客—內(nèi)部和外部的)。 EffectsofFailurePOTENTIAFAILUREMODEANDEFFECTSANALYSIte

Failure

CPotentia Effect(s)o

OPotentia Cause(s

DesignContro

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Recommende

&Target

ActionResuAction S

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Mo

Failu

Mechanism(s ofFailu

PreventioDetectio

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eP tNPotentialEffectsofFailure Part/ NextHigher 的裝 ernmentCustomer(InternalandEnd顧客(內(nèi)部的和最終用戶部件/分部件 ; (對(duì)顧客的影響 987654321DFMEASeverityRatingExampleItemFunction

Doesnot

PotentialEffectsof VPart:Maybestrippedduring V零件:可能在調(diào)整過(guò)程中丟NextHigherAssembly:

cannotbe 的裝配:前燈不能調(diào)System:Misaligned系統(tǒng):光束方向偏Vehicle:Impaired 車(chē)輛:夜晚/霧天性能下tRegs:符Customer:Impairednight/顧客:減少夜晚/霧天行

IdentifyPotentialDesignDesign度生度測(cè)PotentialCausePotentialCauseofAnindicationofadesignweakness,theconsequenceofwhichisthefailuremodeWhatMightWhatMightCauseTwoAssumptionsforCauseItemismanufacturedandassembledwithinengineeringDesignmayincludeadeficiencythatmaycauseunacceptablevariation(misbuilds,errors,etc.)Causesof CCsSev

ofFailure

tec

&Target

SODecevct111

Moden

MEPEManufacturingDuetoDesign由設(shè)計(jì)缺陷引起++-+-CausesofUseaFishbone使用魚(yú)刺BrokenInterfacenotUnderstoodBrokentooSmallNoThread MaterialScrewThreadThermostatThread

CausesofFailure--WhyLevel第1

BrokenLevel第2

SupportareatoosmallLevel第3SentencingDueLeads

CouldresultTIME時(shí)SentencingTechniqueDueDue由Leads導(dǎo)可能導(dǎo)TIME時(shí)典型的失效起因可包括,但不局限于下列情況規(guī)定的材料不正確設(shè) 估計(jì)不足壓力過(guò)大潤(rùn)滑能力不足維修

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