F.M.E.C.A What is it ?

Failure Mode

Effect Analysis

Criticality Analysis

What effect does

the failure have ?

Probability of

the failure

Possible Failures F.M.E.C.A

F.M.E.C.A

F.M.E.C.A

F.M.E.C.A What is it ?

Independent Economies

Desig

n

Costs

applying

F.M.E.C.A

Savings

applying

F.M.E.C.A

<

Op

eratio

nCosts

applying

F.M.E.C.A

Savings

applying

F.M.E.C.A

<

Technical Barrier

Design

Oriented

Disciplines

Operation

Oriented

Disciplines

Technical Barrier

Design

Oriented

Disciplines

Operation

Oriented

Disciplines

F.M.E.C.A Analysis

Linear Graph

Theory

Bond Graph

Theory

Failure

Modes

Effect of

Failure

Reliability of

Components

Criticality

Bull et. Al.1997

Markov Analysis

Hydraulic

CircuitF.M.E.C.A

F.M.E.C.A Process

Dynamic Bond-Graph

Qualitative Bond-Graph

Qualitative Bond-Graph

Markov Process/State Diagram

State 1 Component works

State 0 Component failed

Reliability

Item.no Function Failure mode Local effect System effect Reliability * MTTF (h)

HW09 Ensuring that the motor

is filled with oil

under operation

P35 Bar

Valves does not closed Los of system pressure. Drop of load.

Brake will go on when P35Bar

5*10-5 20000

Valves does not open High system pressure.WH07

will open when

P4180Bar

Lowering stopped.

The load will rest on valve

WH09

5*10-5 20000

HW41 Guard for brake system

when winch is

operating in

“brake off”

mode.

Valve does not open Brake guard system will not

function.

The winch will continue

lowering in “normal”

mode.

7.9*10-5 12660

Valve does not closed No effect in lowering “brake

off” mode.

No effect.

Its normally open in this mode.

7.9*10-5 12660

WH01 Transfer drive torque

to winch drum.

Internal leakage The torque will be reduced. The speed and torque of the

drum will go down.

When PLeakage5P3

Brake will go on.

Lowering stooped.

9.3*10-5 10753

*Possibility for that one of the valves in the system will failure, and the rest will function.

Multi level Analysis

Hierarchy of Faults

New Innovative Technology

Properties

DATABASE

SAP or any other database oriented

system

SAP or any other

database oriented

system

Simple

Calculations

Properties

DATABASE

SAP or any other database oriented

system

SAP or any other

database oriented

system

Simple

Calculations

E

QU

IPMENT

MAIN

COMPONE

NT

SUB

COMPONENT

GENERAL

FAILUREMODES

SPECIFIC

FAILURE MODES

REPORT

- Oreda structure

on each box

E

QU

IPMENT

MAIN

COMPONE

NT

SUB

COMPONENT

GENERAL

FAILUREMODES

SPECIFIC

FAILURE MODES

REPORT

E

QU

IPMENT

MAIN

COMPONE

NT

SUB

COMPONENT

GENERAL

FAILUREMODES

SPECIFIC

FAILURE MODES

REPORT

- Oreda structure

on each box

Report on Faults

A simple tick box

on the appropriate

level is all it takes

BT

BtT

I

Ht

H

GLt

GL Kt

K

(YL)1/p ZT(..)

p

qR qL QNQTQ

PT

q

pR pL

qT QT

QT

qL

PT

pL

pL

p P

PN

PL

I

HL

I

I

KT

VT

V tTFL

F tL

Pro

pertie

s

Connections

The Technical FoundationThe Technical Foundation

BT

BtT

I

Ht

H

GLt

GL Kt

K

(YL)1/p ZT(..)

p

qR qL QNQTQ

PT

q

pR pL

qT QT

QT

qL

PT

pL

pL

p P

PN

PL

I

HL

I

I

KT

VT

V tTFL

F tL

Pro

pertie

s

Connections

The Technical FoundationThe Technical Foundation

A Simple overlay on the existing data

New Innovative Technology

Properties

DATABASE

SAP or any other database oriented

system

SAP or any other

database oriented

system

Simple

Calculations

Properties

DATABASE

SAP or any other database oriented

system

SAP or any other

database oriented

system

Simple

Calculations

E

QU

IPMENT

MAIN

COMPONE

NT

SUB

COMPONENT

GENERAL

FAILUREMODES

SPECIFIC

FAILURE MODES

REPORT

- Oreda structure

on each box

E

QU

IPMENT

MAIN

COMPONE

NT

SUB

COMPONENT

GENERAL

FAILUREMODES

SPECIFIC

FAILURE MODES

REPORT

E

QU

IPMENT

MAIN

COMPONE

NT

SUB

COMPONENT

GENERAL

FAILUREMODES

SPECIFIC

FAILURE MODES

REPORT

- Oreda structure

on each box

Report on Faults

A simple tick box

on the appropriate

level is all it takes

A Simple overlay on the existing data

Technical

Description

Faults

&

Effects

Component

Selection based

“criticality”

Sensor

Selection

Sensor Reading

Condition

MonitoringDiagnostics

Selec

t loca

lly th

e ad

equat

e m

ainte

nance

sch

eme

•Bre

ak d

own m

ainte

nance

•Seq

uentia

l mai

ntenan

ce

•Pre

ventiv

e m

ainte

nance

•Conditi

on bas

ed m

ainte

nance

New Innovative Technology

State 1 Component

works

State 0 Component

failed

107539.3*10-5The speed and torque of the

drum will go down.

When PLeakage

5P3

Brake will go on.

Lowering stooped.

The torque will be reduced.Internal leakageTransfer drive torque

to winch drum.

WH01

126607.9*10-5No effect.

Its normally open in this mode.

No effect in lowering “brake

off” mode.

Valve does not closed

126607.9*10-5The winch will continue

lowering in “normal”

mode.

Brake guard system will not

function.

Valve does not openGuard for brake system

when winch is

operating in

“brake off”

mode.

HW41

200005*10-5Lowering stopped.

The load will rest on valve

WH09

High system pressure.WH07

will open when

P4180Bar

Valves does not open

200005*10-5 Drop of load.

Brake will go on when P35Bar

Los of system pressure.Valves does not closedEnsuring that the motor

is filled with oil

under operation

P35 Bar

HW09

MTTF (h)Reliability *System effectLocal effect Failure modeFunctionItem.no

107539.3*10-5The speed and torque of the

drum will go down.

When PLeakage

5P3

Brake will go on.

Lowering stooped.

The torque will be reduced.Internal leakageTransfer drive torque

to winch drum.

WH01

126607.9*10-5No effect.

Its normally open in this mode.

No effect in lowering “brake

off” mode.

Valve does not closed

126607.9*10-5The winch will continue

lowering in “normal”

mode.

Brake guard system will not

function.

Valve does not openGuard for brake system

when winch is

operating in

“brake off”

mode.

HW41

200005*10-5Lowering stopped.

The load will rest on valve

WH09

High system pressure.WH07

will open when

P4180Bar

Valves does not open

200005*10-5 Drop of load.

Brake will go on when P35Bar

Los of system pressure.Valves does not closedEnsuring that the motor

is filled with oil

under operation

P35 Bar

HW09

MTTF (h)Reliability *System effectLocal effect Failure modeFunctionItem.no

Fault effects

The system gets

better and betterFocus where it matters for

safety, functionality and

economy

New Innovative

Technology

Applied to the control

and hydraulic systems

of an AS 332 Super

Puma helicopter

In cooperation with:

M

19

Qf1

Qrv

Qcv2

Qf2

Qfbp

Qcv1

Qdv

Qp

Qacc

wp

Qp

prv

pp

pf

pacc

ptl

ptlr

prl

Tp

QTSC

QMSC

pres

2

3 4

5 12 6 7

8

10

11

ps

New Innovative Technology

Applied to an autonomous

underwater vehicle in

cooperation with;

FieldCare AS

New Innovative Technology

Applied to an offshore Manrider winch

In cooperation with;

New Innovative Technology

Applied to a Lower Ricer Package

In cooperation with;

Manrider winch

AS 332 Super Puma

Lower Ricer Package

Autonomous

Underwater Vehicle