Slide 1

CBM Optimization – Complex items

An item is a group of components that is convenient to monitor and analyze together

Equipment units, as defined in the CMMS asset register are, in general, well defined items.

A complex item is an item with more than one significant failure mode.

Slide 2

EXAKT data model

Inspections

IdentDateWorkingAgeCovariate1NameCovariate2Name….Comment

Events

IdentDateWorkingAgeEventComment

EventsDescription

EventNamePrecedenceComment

VarDescription

VariableNameMeasureUnitWarnLimit1WarnLimit2…Comment

CovariatesOnEvent

EventStartingDateEndingDateCovariate1NameCovariate2Name…Comment

IdentToModel

ModelNameIdentNameDate

EventToModel

ModelNameInputEventNameOutputEventNameInputPOutputP

VarToModel

ModelNameInputVariableNameOutputVariableNameVariableDataTypeMeasureUnitWarnLimit1WarnLimt2...

These are data mapping tables. They enable the analysis of complex items and are automatically populated by EXAKT in the mapping procedure to be discussed in Slide 5

Slide 3

Attach external database(s) to the analysis

Slide 4

General project data

Slide 5

Data mapping of the first failure mode on Gearbox A

Slide 6

Build the proportional hazard model

Age not significant. So fix shape parameter to one.

Slide 7

Final model – reliability is age independent

Slide 8

Transition and Decision models

Slide 9

Cost function

Slide 10

Decisions

Slide 11

Creating the DMDR database

Slide 12

Attach the DMDR database tables

Slide 13

Store decision model

Slide 14

EXAKT for decisions

Slide 15

Attach DMDR tables

Slide 16

Create a report list and run the models

Slide 17

Graphics

Replacement Decision Failure Risk

Conditional Distribution Function

Conditional Density Function

Slide 18

All Units report