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

QUESTIONS QUESTIONS &&

ANSWERSANSWERS

PECM299 15

CORONA

WARFARE CENTERS

Back Up Slides

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