PECM299 9
CORONA
WARFARE CENTERS
Reliability Based Reliability Based MaintenanceMaintenance
• Maintenance Due DatesBased on Pedigree
• Allows DynamicHardware “What ifs”
• Optimization Analysis– Maximize Reliability or– Maximize Availability or– Minimize Cost
•Weapon Spec. Reliability•Service Life Limited
Components
PECM299 10
CORONA
WARFARE CENTERS UID BenefitsUID Benefits
•• Dynamic Tactics & DoctrineDynamic Tactics & Doctrine•• Optimized Asset AllocationOptimized Asset Allocation•• Reliability Centered MaintenanceReliability Centered Maintenance
–– Advanced DiagnosticsAdvanced Diagnostics–– PrognosticsPrognostics–– Vehicle Health Management SystemsVehicle Health Management Systems
•• Autonomic LogisticsAutonomic Logistics
PECM299 11
CORONA
WARFARE CENTERS Dynamic Tactics & DoctrineDynamic Tactics & Doctrine
R=.93
R=.93
R=.92
R=.92
R=.91
R=.91
R=.90
R=.90
R=.89
R=.89
R=.88
R=.88
R=.87
R=.87
R=.86
R=.86
R=.85
Shoot,Look
High Slow Threat
Low Fast Threat
R=.85
R=Predicted Reliability
NOTIONALNOTIONAL
[1-(1-.93)(1-.93)(1-.92)]=.9996
Shoot,Shoot,
Shoot
?
Shoot,Look
PECM299 12
CORONA
WARFARE CENTERS
M1A1 Main Battle Tanks
Mission A“Kick Down the Front Door”80 Main Battle Tanks RequiredDistance to Objective 450Km
Mission B“Close the Back Door”10 Main Battle Tanks RequiredDistance to Objective 10 Km
Assets UnavailableFor Mission B
100 AvailableA
vera
ge R
elia
bilit
y of
of
Engi
ne/
Tran
smis
sion
fo
r ea
ch 5
00
Km
dri
ven
= 0
.92
9Required Tanks for Mission A = 80Tanks to Allocate for Mission A = 100
Allocation w/o Allocation w/o Reliability ModelsReliability Models
PECM299 13
CORONA
WARFARE CENTERS
Intelligent Allocation Intelligent Allocation w/ Reliability Modelsw/ Reliability Models
Mission A“Kick Down the Front Door”90 Main Battle Tanks RequiredDistance to Objective 450Km
R= .97
Mission B“Close the Back Door”10 Main Battle Tanks RequiredDistance to Objective 10 Km
R= .97
R= .95
R= .94
R= .93
R= .93
R= .91
R= .90
R= .90
R= .89
R =
Pre
dict
ed R
elia
bilit
y of
En
gin
e/Tr
ansm
issi
on
for
each
50
0K
m d
rive
n.
100 Available Required Tanks for Mission A = 80Tanks to Allocate for Mission A = the 90 with the highest Reliability
Required Tanks for Mission B = 10Tanks to Allocate for Mission B = the remaining 10
M1A1 Main Battle Tanks
PECM299 16
CORONA
WARFARE CENTERS
BENEFITS OF UIDFOR STANDARD Missile
Improvements• Automated Data Entry
–Data Quality–Data Timeliness
• Document Processing• Old Duplication Problems Resolved
PECM299 17
CORONA
WARFARE CENTERS
RELIABILITY CENTERED RELIABILITY CENTERED MAINTENANCE ENABLERMAINTENANCE ENABLER
Check Processes– Verify Criteria is Effective – Feed back into R&D– Failure Finding Interval
(FFI)
Find ProblemsRoot of the problem:
– Hardware
– Test System
– Personnel/Training
PECM299 18
CORONA
WARFARE CENTERS
SM CORROSION/MOISTURE DAMAGE SM CORROSION/MOISTURE DAMAGE STUDYSTUDY
CHECKING PROCESSESCHECKING PROCESSESAction
NSWC Corona Division determined the effect of corrosion/moisture on missile reliability.
Result
Analysis showed corrosion/moisture damage did not significantly affect missile flight reliability. Concluding the current maintenance procedures in place effectively ‘catch’ corrosion/moisture related problems before they affect missile flight reliability. Areas for further improvement and prevention of corrosion and its impact help SM-3.
Issue
Past moisture damage or corrosion to the missile might affect flight reliability or missile performance.
Cor
rosi
on/M
oist
ure
Stud
y
PECM299 19
CORONA
WARFARE CENTERS
NSWC Corona’s experience/expertise in determining Missile Recertification Intervals can be used to determine the FFI needed for RCM.
Failure Finding Interval
Missile Recertification Intervalsare like
Failure Finding Intervals (FFI)
• Based on hardware failing at an unknown time• Trade-offs made between short and long intervals (risk / cost)• Difficult to determine and justify
(often important effects are non-linear)
Check Hardware
Xfailure
Interval
imminent failure detectable
PECM299 20
CORONA
WARFARE CENTERSASSET MAINTENANCE AND LOGISTICS ASSET MAINTENANCE AND LOGISTICS
INFORMATION FLOWINFORMATION FLOW
MAINTENANCE DATA COLLECTION THROUGHOUT LIFE CYCLEMAINTENANCE DATA COLLECTION THROUGHOUT LIFE CYCLE
SHIPMENTSRECEIPTS
ONLOAD
OFFLOAD
•TESTS•CONFIGURATION•REPAIR
FACTORY
MANUFACTURER
•REPAIR•TESTS•CONFIGURATION
DEPOT LEVEL MAINT. FACILITY
ONLOADONLOADONLOAD
DEPLOYMENTFLEET
•FIRING•IN-COUNTRY
Combatant
Storage
Auxiliary
REPAIRED
FAILED SECTIONSEXPENDED
•FLEET RETURN PROCESSING
WEAPON STATION
•MISSILE ASSEMBLY
•TESTS
•FINALACCEPTANCE
•RECONFIG
ALLUP
ROUNDFACILITY
WEAPONSTATION
REJECTEDSECTIONS
WARRANTYFAILED SECTIONS
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