An AMC apporoach to deal with the influences
of the mission environment on maritime
assets
Dissertation Master of Science in Asset Management Control
D.B. van der Plas
1
INTRO - LITERATURE - FIELD - CASE - C & R
INTRODUCTION
2
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Motivation
• Mission profile is not yet in the scope of
AMC
• Consequences 2 year mission OPV in
Caribbean Sea unknown
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Research question
Main:
‘What are the effects of the deployment of
maritime assets in the Caribbean Sea for a
long period of time
… and how should asset owners use this
information to achieve cost effectiveness
of those maritime assets?’
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Research strategy
• Literature study
• Field survey
• Case study
Literature study
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Failures
Failures
Systematic
Corrosion
Random
Abnormal
proces
conditions
Common
Cause
Wear
and tear
7
INTRO - LITERATURE - FIELD - CASE - C & R
Failures (corrosion)
Variables that influence corrosion rate metals:
• Concentration (salt)
• Temperature
• Catalytic Conversion (pollution)
• Distribution rate (current)
Polymers:
• UV-radiation
INTRO - LITERATURE - FIELD - CASE - C & R
North Sea vs. Caribbean Sea
Variable
Caribbean
Value
North Sea
Value
Temperature
Salinity
Current
27 degrees C
35 ‰
0,3 – 0,7 m/s
11 degrees C
35 ‰
0,2 – 1,3 m/s
UV-radiation
Catalytic
conversion
13 mW/m2
unknown
4 mW/m2
unknown
Factor increase
corrosion rate
Carib
3
Not significant
Not limiting for
corrosion rate
4
unknown
Material
Metals
Metals
Metals
Polymers
All
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Setting up an analysis model
• Maintenance: RCM
• Logistics: ILS (logistic support analysis)
• Management Control: AMCS (asset
management control system)
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Asset Management Control System
Need
OPERATIONAL ENVIRONMENT
Functionality
Key to Symbols:
REQUIREMENTS
ACCOUNTS
LOGISTICS
PROGRAM
LOGISTICS
ENGINEERS &
MANAGERS
LCM-team
DIRECTIVES
CONTROLS
LOGISTICS PROCESS
PRODUCTS
& SERVICES
DIAGNOSES
(feedback)
TECHNICAL SYSTEM
ANALYSIS &
CONTROL TOOLS
COMPUTER
APPLICATIONS
WIDE AREA
NETWORK
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Summary literature study
RCM review
Input Variables:
- Corrosion rate
- UV degradation
- Running hours
- ……
Identify Mission
related failure
modes
ILS review
(LORA, support
elements
Alternative
ILS plan
Updated
AMCS:
- LCM-team
- LCM-model
Field Survey
INTRO - LITERATURE - FIELD - CASE - C & R
Interviews and infra
• Goals: verify variables, define new
variables + (motivation)
• Representatives from DMO, RNLN, RNLN
Carib, customs, RMar
INTRO - LITERATURE - FIELD - CASE - C & R
Interviews and infra - results
Parameter
Temperature
UV-radiation
Biofouling
Factor increase Carib
compared to the North Sea
3
4
3-5
1,5 - 2
Influences
Corrosion of metals
Polymer degradation
Underwater hull / Sea water
systems / propellers
Repair times
Cultural / infra
disadvantages
Seaweed
floating
Humidity
> 1 (not quantified)
Block sea water inlets
> 1 (not quantified)
Growth of fungus / mould
Dry Climate
< 1 (not quantified)
Corrosion of metals
Wear and Tear
< 1 (not quantified)
Pump impellers
Rough Sea in
winter
< 1 (not quantified)
Hull damages
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Interviews and infra - results
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Data analysis case 1
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Data analysis case 1 - results
• Between €350.000,- and
€400.000,- per year CGC
• €300.000,- per year Customs
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Data analysis case 2
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Data analysis case 2 - results
• Bloys higher maintenance load for: deck
equipment, radars, antennas, diesel
generators, chillers, HVAC and canon
• Almo higher maintenance load for:
Replenishment at Sea installation
(differences > +50 %)
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Field survey - conclusions
• Availability of data is poor
• Results literature are validated, installations
with priority further analysis are presented
in field survey.
• Interview results and table with variables
should be used to create alternative ILS
plans
Case Study
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Case study - general
• Conservation system – corrosion related
• Diesel generators – process conditions
• Mission specific managment control
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Conservation
• FMEA: corrosion related failure modes
identified
• RCM: alternative maintenance strategies
defined (intervals)
• LORA: alternative maintainers defined
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Conservation
• AMCS
New product actor combinations:
- Products: periodical inspections on site
- Actors: ILM specialist + local contractor
- Base line data (cost and performance)
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Conservation
• Business Case: €78.000 potential saving
900.000
800.000
700.000
600.000
500.000
Mean
Min
Max
Mean
Min
Max
400.000
300.000
200.000
100.000
€
0
No maintenance plan
With maintenance plan
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Diesel generators
• FMEA / RCM -> use based (running hrs)
Mean hrs per diesel engine
• Den Helder: 5120 hrs / two years
• Willemstad: 7200 hrs / two years
3000 hrs maintenance planning important !
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Diesel generators
• LORA
3000 hrs maintenance by shore support or
local contractor (not crew)
• AMCS
- Products: 3000 hrs maintenance
- Actors: shore support or local contractor
- Base line data (cost and performance)
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Diesel generators
• Business Case: cost vs benefit
COST
• Local contractor
cost
• Spares in stock
• Training
BENEFIT
• Increase of
availability
(better planning)
• Reduce
maintenance
load crew
• Less ad hoc
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Management Control
• Life Cycle Management System (model)
• Life Cycle Management Team
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Management Control
• LCM system (model of AMCS)
- Model of technical system
- Model of product actor combinations
- Model of cost and performance data
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Management Control
• LCM system – mission profiles
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Management Control
• LCM team
 Team building
 Creation of LCM-model
 Mission specific team members?
 Evaluation plan
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Case study - conclusions
• Analysis model works
• Potential in saving cost and increasing
availability
• RCM II not always applicable
• Workload to create alternative ILS plans is
minimal
• Management Control preparations should
start in time
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Case Study - Conclusions
Input Variables:
- Corrosion rate
- UV degradation
- Running hours
- ……
Identify Mission
related failure
modes
Maintenance
review
ILS review
(LORA, support
elements
Alternative
ILS plan
Updated
AMCS:
- LCM-team
- LCM-model
Conclusions and
recommendations
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Answer research question
• Caribbean Sea is more corrosive and use
profile is different
• Input variables can be defined to identify
mission related failures
• Effects on installations summarized in table
(results field survey)
• Asset managers should analyze
installations according to analysis model
• Alternative ILS plans should be processed
in the AMCS
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Recommendations
Research:
• Method for spare part optimization
• Research generic applicability of analysis
model
• Define generic input variables
Projects:
• Involve a corrosion specialist in designs
• Create alternative ILS plans, LCM team
and LCM model !!!!
Questions