FMEA Beijing Jiaotong
Transcript of FMEA Beijing Jiaotong
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FMEA
2014.12.11
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AFS
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AFS
http
linkinside
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AccordingtothecaseofAFS,makinga
Failure
ModeEffectAnalys
is.
Ex
ercise
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Analysistechniquesforsyste
mreliability
Procedureforfailuremode
andeffec
tsanalysis(FMEA)
IEC
60812
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Scope
I.providingtheproceduralsteps
necessaryto
perform
ananalysis
;
II.identifyin
gappropriateterms,a
ssumptions
,
criticality
measures,failuremodes;
III.defining
basicprinc
iples;
IV.providin
gexamples
ofthenecessary
workshe
etsorothertabularforms.
IEC60812(
1)
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Normativereferences
I.IEC60300-3-1:2003,D
ependability
management
Part
3-1:Applicationguide
Analysistechniquesfor
dependab
ility
Guideonmethodolo
gy
II.IEC61025,Faulttreeanalysis(FTA
)
III.IEC61078,Analysiste
chniquesfor
dependability
Reliability
blockdiagrammethod
IEC60812(
2)
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Definitions
IEC60812(
3)
item
failure
mode
failure
failurec
riticality
fault
system
failureeffect
failures
everity
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Definitions
Item
anypart,component,d
evice,subsystem,functionalunit,
equipmen
torsystemthatcanbeindividuallyconsidered
NOTE1A
nitemmayc
onsistofhardware,softwa
reor
both,and
mayalsoinparticularcasesincludepe
ople.
NOTE2A
numberofitems,e.g.ap
opulationofitemsor
asample,mayitselfbe
consideredasanitem.
IEC60812(3
.1)
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Definitions
failure
termina
tionofthe
abilityof
anitemto
perform
arequire
dfunction
IEC60812(3
.2)
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Definitions
fault
stateofanitemcharacteriz
edbytheinabilitytoperformarequired
function,ex
cludingtheinab
ilityduringpreventivemaintena
nceor
otherplann
edactions,orduetolackofext
ernalresources
NOTE1Afaultisoftenthe
resultofafailureoftheitemits
elf,but
mayexistw
ithoutpriorfailu
re.
NOTE2In
thisdocument
faultisusedinterchangeablyw
iththe
termfailureforhistoricalr
easons.
IEC60812(3
.3)
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Definitions
failureeffect
consequenceofa
failurem
odeintermsof
theope
ration,fun
ctionorstatusofth
eitem
IEC60812(3
.4)
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Definitions
failuremode
mannerinwhichanitemfa
ils
IEC60812(3
.5)
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Definitions
failurecriticality
combinationofth
eseverity
ofaneffe
ct
andthe
frequencyofitsoccurrenceo
r
otherattributesofafailure
asameasure
ofthen
eedforad
dressing
andmitiga
tion
IEC60812(3
.6)
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Definitions
system
setofinterr
elatedorinteractingelements
NOTE1In
thecontextofdependability,as
ystemwillhave
a)definedpurposesexpres
sedintermsof
requiredfunctio
ns;
b)statedco
nditionsofoperationuse
c)adefined
boundary.
NOTE2Th
estructureofa
systemishierarchical.
IEC60812(3
.7)
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Definitions
failureseverity
significanceorgradingofth
efailure
modes
effecton
itemoperation,onthe
itemsurrounding,oronthe
itemoperator;
failuremodeeffectseverity
asrelatedto
thedefinedboundariesoftheanalyzed
system
IEC60812(3
.8)
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Overvie
w
Introduction
Purposeandobje
ctivesoftheanalys
is
IEC60812(
4)
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Overvie
w
IntroductionIE
C60812(4
.1)
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Overvie
w
Purposeandobjectivesoftheanalys
is
IEC60812(4
.2)
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Failure
modesan
deffectsanalysis
Genera
lconsider
ations
Preliminarytasks
Failure
mode,effects,andcriticality
analysis(FMECA
)
Report
ofanalysis
IEC60812(
5)
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Failure
modesan
deffectsanalysis
Genera
lconsiderations
IEC60812(5
.1)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Planningforth
eanalysis
Systemstructure
Failuremodedetermination
Failurecauses
Failureeffects
Detectionmethods
Failurecompe
nsatingprovisions
Severityclassification
Frequencyorprobabilityofoccurrence
Analysisproce
dure
IEC60812(5
.2)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Planningforth
eanalysis
IEC60
812(5.2.1)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Systemstructure
Informationon
systemstructure
Definingsyste
mboundaryforthe
analysis
Levelsofanalysis
Representatio
nofsystemstructur
e
Systeminitiation,operation,controlandmaintenance
Systemenviro
nment
IEC60
812(5.2.2)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Systemstructure
Informationon
systemstructure
IEC608
12(5.2
.2.1)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Systemstructure
Definingsyste
mboundaryforthe
analysis
IEC608
12(5.2
.2.2)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Systemstructure
LevelsofanalysisIE
C608
12(5.2
.2.3)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Systemstructure
Representatio
nofsystemstructur
e
IEC608
12(5.2
.2.4)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Systemstructure
Systeminitiation,operation,controlandmaintenance
IEC608
12(5.2
.2.5)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Systemstructure
Systemenviro
nment
IEC608
12(5.2
.2.6)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Failuremodedetermination
IEC60
812(5.2.3)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Failurecauses
IEC60
812(5.2.4)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Failureeffects
Failureeffects
definition
Localfailuree
ffects
Failureeffects
atthesystemlevel
IEC60
812(5.2.5)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Failureeffects
Failureeffects
definition
IEC608
12(5.2
.5.1)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Failureeffects
Localfailuree
ffects
IEC608
12(5.2
.5.2)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Failureeffects
Failureeffects
atthesystemlevel
IEC608
12(5.2
.5.3)
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Failure
modesan
deffectsanalysis
Preliminarytasks
DetectionmethodsIE
C60
812(5.2.6)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Failurecompe
nsatingprovisions
IEC60
812(5.2.7)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Severityclassification
IEC60
812(5.2.8)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Frequencyorprobabilityofoccurrence
IEC60
812(5.2.9)
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Failure
modesan
deffectsanalysis
Preliminarytasks
Analysisproce
dureIE
C60812(5.2.10)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
Purposeof
analysis
Risk,R,andriskprioritynu
mber(RPN)
RelationshipbetweenFME
CAandriskana
lysis
Failuremod
efailurerate,p
robability,andc
riticalitynumber
determination
Riskacceptabilityassessm
ent
FMECAtyp
eswiththerank
ingscales
IEC60812(5
.3)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
Purposeof
analysis
IEC60
812(5.3.1)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
Risk,R,andriskprioritynu
mber(RPN)
IEC60
812(5.3.2)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
RelationshipbetweenFME
CAandriskana
lysis
IEC60
812(5.3.3)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
Failuremod
efailurerate,p
robability,andc
riticalitynumber
determination
Criticalitym
atrixIE
C60
812(5.3.4)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
Failuremod
efailurerate,p
robability,andc
riticalitynumber
determination
Criticalitym
atrix
IEC608
12(5.3
.4.1)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
Riskacceptabilityassessm
ent
IEC60
812(5.3.5)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
FMECAtyp
eswiththerank
ingscales
Alternateseveritydetermination
Alternatedeterminationofoccurrence
Ratingoffa
iluredetectionp
robability
Riskevalua
tionIE
C60
812(5.3.6)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
FMECAtyp
eswiththerank
ingscales
Alternateseveritydetermination
IEC608
12(5.3
.6.1)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
FMECAtyp
eswiththerank
ingscales
Alternatedeterminationofoccurrence
IEC608
12(5.3
.6.2)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
FMECAtyp
eswiththerank
ingscales
Ratingoffa
iluredetectionp
robability
IEC608
12(5.3
.6.3)
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Failure
modesan
deffectsanalysis
Failure
mode,effects,and
criticality
analysis(FMECA
)
FMECAtyp
eswiththerank
ingscales
Riskevalua
tion
IEC608
12(5.3
.6.4)
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Failure
modesan
deffectsanalysis
Report
ofanalysis
Scope
andconte
ntofarep
ort
Effects
summary
IEC60812(5
.4)
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Failure
modesan
deffectsanalysis
Report
ofanalysis
Scopeandcontentofarep
ort
IEC60
812(5.4.1)
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Failure
modesan
deffectsanalysis
Report
ofanalysis
Scopeandcontentofarep
ort
IEC60
812(5.4.2)
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Otherc
onsiderations
Commo
n-causefailures
Human
factors
Softwareerrors
FMEAregarding
conseque
ncesofsy
stem
failure
IEC60812(
6)
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Otherc
onsiderations
Common-causefailures
IEC60812(6
.1)
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Otherc
onsiderations
Human
factors
IEC60812(6
.2)
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Otherc
onsiderations
Softwareerrors
IEC60812(6
.3)
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Otherc
onsiderations
FMEAregarding
conseque
ncesofsy
stem
failure
IEC60812(6
.4)
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Applica
tions
UseofFMEA/FM
ECA
BenefitsofFMEA
Limitationsandd
eficienciesofFMEA
Relationshipswithothermethods
IEC60812(
7)
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Applica
tions
UseofFMEA/FM
ECA
IEC60812(7
.1)
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Applica
tions
BenefitsofFMEA
IEC60812(7
.2)
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Applica
tions
Limitationsandd
eficienciesofFMEA
IEC60812(7
.3)
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Applica
tions
Relationshipswithothermethods
IEC60812(7
.4)
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Annex
AnnexASummaryofproceduresfor
FMEAandFMEC
A
AnnexBExamplesofanalyses
IEC60812(
8)
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Annex
ASummaryofprocedures
forFMEA
and
FMECA
Stepsf
orperform
anceofa
nalysis
FMEAworksheet
IEC60812(8
.1)
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Annex
ASummaryofprocedures
forFMEA
and
FMECA
Stepsforperform
anceofanalysis
IEC60
812(8.1.1)
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Annex
ASummaryofprocedures
forFMEA
and
FMECA
FMEAworksheet
Scopeo
faworkshe
et
Workshe
etheader
Workshe
etentries
Workshe
etremarks
IEC60
812(8.1.2)
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Annex
ASummaryofprocedures
forFMEA
and
FMECA
FMEAworksheet
Scopeo
faworkshe
et
IEC608
12(8.1
.2.1)
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Annex
ASummaryofprocedures
forFMEA
and
FMECA
FMEAworksheet
Workshe
etheader
IEC608
12(8.1
.2.2)
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Annex
ASummaryofprocedures
forFMEA
and
FMECA
FMEAworksheet
Workshe
etentries
IEC608
12(8.1
.2.3)
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Annex
ASummaryofprocedures
forFMEA
and
FMECA
FMEAworksheet
Workshe
etremarks
IEC608
12(8.1
.2.4)
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Annex
BExam
plesofanalyses
Example
1
FMEC
Aforapartofautomotive
electronicswithRPNcalculatio
n
Example
2
FMEA
forsub-subsystemofa
motor-generatorset
Example
3
FMEC
Aforaman
ufacturing
process
IEC60812(8
.2)
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Annex
BExam
plesofanalyses
Example
1
FMEC
Aforapart
ofautomotive
electronicswithRPNcalculatio
n
IEC60
812(8.2.1)
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Annex
BExam
plesofanalyses
Example
2
FMEA
forsub-subsystemofa
motor-generatorset
IEC60
812(8.2.2)
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Annex
BExam
plesofanalyses
Example
3
FMEC
Aforaman
ufacturing
process
IEC60
812(8.2.3)
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Bibliography
[1]BS5760-5:1991,Reliabilityofsystems,equipmentandcomponents
analysis(FMEAandFMECA)
[2]SAEJ1739:2000,
PotentialFailureModeandEffectsAnalysisinDesign(DesignFMEA)andPotentialFailureModeand
EffectsAnalysisinManufacturingandAssemblyPr
ocesses(ProcessFMEA),and
PotentialFailureModeandE
ffectsAnalysisfor
Machinery
[3]SAEARP5580:20
01,
FailureModes,
Effects,an
dCriticalityAnalysisProcedur
es
[4]AIAG,
PotentialFailureModeandEffectsAnalysis,
ThirdEdition,
2001
[5]M.
Krasich,
FaultTreeAnalysisforFailureMode
sIdentificationandProductR
eliabilityImprovement,tutorialpresentedatthe
ReliabilityandMainta
inabilitySymposium;TutorialProceedingsof2002,
2003,and2005.
[6]J.
Bowles,
AnAss
essmentofRPNPrioritization
inaFailureModesEffectsandCriticalityAnalysis,
technicalpaperpresented
attheReliabilityand
MaintainabilitySymposium,20
03.
[7]IEC60050(191):1
990,
InternationalElectrotech
nicalVocabulary(IEV)
Chap
ter191:Dependabilityandqu
alityofservice
[8]IEC60300-1,
Dep
endabilitymanagement
Part1:Dependabilitymanagemen
tsystems
[9]IEC60300-2,
Dep
endabilitymanagement
Part2:Guidelinesfordependabilitymanagement
[10]IEC60300-3-9,D
ependabilitymanagement
Part3:Applicationguide
Section9:Riskanalysisoftechno
logicalsystems
[11]IEC61160,
Form
aldesignreview
[12]IEC61165,
ApplicationofMarkovtechniques
[13]IEC60300-3-11,
Dependabilitymanagement
Part3-11:Applicationguide
Reliabilitycenteredmaintena
nce
[14]ISO9000:2000,Qualitymanagementsystems
Fundamentalsandvocabulary
IEC6
0812(10)
-
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1)Choosingaco
mponentfromthecases,
2)makingaFailu
reModeE
ffectAna
lysis
foryourchoice,
3)then
discussingwhether
youoryo
ur
groups
atisfywith
theresultofFMEA
?And
why?
Dis
cussion
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Seeyounexttime.