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An AMC apporoach to deal with the influences An AMC apporoach to deal with the influences of the mission environment on maritime of the mission environment on maritime
assetsassets
Dissertation Master of Science in Asset Management ControlD.B. van der Plas
Dissertation Master of Science in Asset Management ControlD.B. van der Plas
INTRODUCTION
INTRO - LITERATURE - FIELD - CASE - C & R
2
Motivation
• Mission profile is not yet in the scope of AMC
• Consequences 2 year mission OPV in Caribbean Sea unknown
INTRO - LITERATURE - FIELD - CASE - C & R
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?’
INTRO - LITERATURE - FIELD - CASE - C & R
Research strategy
• Literature study
• Field survey
• Case study
INTRO - LITERATURE - FIELD - CASE - C & R
Literature study
Failures
7
Failures
RandomSystematic Common Cause
Corrosion Abnormal proces conditions
Wear and tear
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
Factor increase corrosion rate Carib
Material
Temperature 27 degrees C 11 degrees C 3 MetalsSalinity 35 ‰ 35 ‰ Not significant MetalsCurrent 0,3 – 0,7 m/s 0,2 – 1,3 m/s Not limiting for
corrosion rateMetals
UV-radiation 13 mW/m2 4 mW/m2 4 Polymers
Catalytic conversion
unknown unknown unknown All
INTRO - LITERATURE - FIELD - CASE - C & R
Setting up an analysis model
• Maintenance: RCM
• Logistics: ILS (logistic support analysis)
• Management Control: AMCS (asset management control system)
INTRO - LITERATURE - FIELD - CASE - C & R
Asset Management Control System
OPERATIONAL ENVIRONMENT
TECHNICAL SYSTEM
LOGISTICS PROCESS
Need Functionality
LCM-team
REQUIREMENTS ACCOUNTS
DIRECTIVES CONTROLS
PRODUCTS & SERVICES
DIAGNOSES(feedback)
Key to Symbols:
LOGISTICS PROGRAM
LOGISTICS ENGINEERS &MANAGERS
ANALYSIS & CONTROL TOOLS
COMPUTER APPLICATIONS
WIDE AREANETWORK
INTRO - LITERATURE - FIELD - CASE - C & R
Summary literature study
Input Variables:- Corrosion rate- UV degradation- Running hours- ……
Identify Mission related failure modes
Updated AMCS:- LCM-team- LCM-model
RCM review ILS review (LORA, support elements
Alternative ILS plan
INTRO - LITERATURE - FIELD - CASE - C & R
Field Survey
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
INTRO - LITERATURE - FIELD - CASE - C & R
Parameter Factor increase Carib compared to the North Sea
Influences
Temperature 3 Corrosion of metals
UV-radiation 4 Polymer degradation
Biofouling 3-5 Underwater hull / Sea water systems / propellers
Cultural / infra disadvantages
1,5 - 2 Repair times
Seaweed floating
> 1 (not quantified) Block sea water inlets
Humidity > 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
Interviews and infra - results
INTRO - LITERATURE - FIELD - CASE - C & R
Data analysis case 1
INTRO - LITERATURE - FIELD - CASE - C & R
Data analysis case 1 - results
• Between €350.000,- and €400.000,- per year CGC
• €300.000,- per year Customs
INTRO - LITERATURE - FIELD - CASE - C & R
Data analysis case 2
INTRO - LITERATURE - FIELD - CASE - C & R
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 %)
INTRO - LITERATURE - FIELD - CASE - C & R
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
INTRO - LITERATURE - FIELD - CASE - C & R
Case Study
Case study - general
• Conservation system – corrosion related• Diesel generators – process conditions
• Mission specific managment control
INTRO - LITERATURE - FIELD - CASE - C & R
Conservation
• FMEA: corrosion related failure modes identified
• RCM: alternative maintenance strategies defined (intervals)
• LORA: alternative maintainers defined
INTRO - LITERATURE - FIELD - CASE - C & R
Conservation
• AMCS
New product actor combinations:
- Products: periodical inspections on site
- Actors: ILM specialist + local contractor
- Base line data (cost and performance)
INTRO - LITERATURE - FIELD - CASE - C & R
Conservation
• Business Case: €78.000 potential saving
0
100.000
200.000
300.000
400.000
500.000
600.000
700.000
800.000
900.000
€No maintenance plan With maintenance plan
Mean Min Max Mean Min Max
INTRO - LITERATURE - FIELD - CASE - C & R
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 !
INTRO - LITERATURE - FIELD - CASE - C & R
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)
INTRO - LITERATURE - FIELD - CASE - C & R
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
INTRO - LITERATURE - FIELD - CASE - C & R
Management Control
• Life Cycle Management System (model)
• Life Cycle Management Team
INTRO - LITERATURE - FIELD - CASE - C & R
Management Control
• LCM system (model of AMCS)
- Model of technical system- Model of product actor combinations - Model of cost and performance data
INTRO - LITERATURE - FIELD - CASE - C & R
Management Control
• LCM system – mission profiles
INTRO - LITERATURE - FIELD - CASE - C & R
Management Control
• LCM team
Team building Creation of LCM-model Mission specific team members? Evaluation plan
INTRO - LITERATURE - FIELD - CASE - C & R
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
INTRO - LITERATURE - FIELD - CASE - C & R
Case Study - Conclusions
Input Variables:- Corrosion rate- UV degradation- Running hours- ……
Identify Mission related failure modes
Updated AMCS:- LCM-team- LCM-model
Maintenance review
ILS review (LORA, support elements
Alternative ILS plan
INTRO - LITERATURE - FIELD - CASE - C & R
Conclusions and recommendations
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
INTRO - LITERATURE - FIELD - CASE - C & R
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 !!!!
INTRO - LITERATURE - FIELD - CASE - C & R
Questions