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An Overviewof

CeSOS 2002-2012by

Torgeir Moan

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Outline- Background

Objective and Scope- Resources(Budget,personnel,laborataries)

- Research Activities - Results

(research training, publications)

- Continued Excellence…….. - Concluding remarks

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Experiments/full-scale obs.

PrincipalResearchAreas

Integration of Disciplines

Research Challenges

Hydro-dynamics

StructuralMechanics

AutomaticControl

TheoryC

CeSOS Objective & Scope

CeSOS BackgroundSafe and sustainable utilisation of the oceans

Develop new, fundamental knowledge about ships and ocean structures behaviour in a chaotic sea

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OceanographyMeteorology

Experimental/In-service obs.

AutomaticControl

Mathematicalmodelling

Material-technology

Electro -Sensor-Instrumentation’technology

Hydro-dynamics

CeSOS’ research strategyBasic research:

- development of disciplinesand

- integration of disciplines in view of- technological visionsin close contact with the industry Structural

mechanics

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• Basic research (new methods or new applications)(identify, describe, develop mathematical models and quantify the model uncertainty):- develop disciplines and not not least- integrate disciplines – creating new disciplines

in view of- technological visions- enabling technologies (ICT, material techn. -…)- utilize comparative advantages (laboratories etc)

in close contact with e.g. - visionary companies (industry) - international research community

• Our research is hence closely linked to innovation

CeSOS’ research strategy, continued

T.Moan CeSOS

6Resources Key economic data (MNOK)

- Basic contribution

: 130- Contributions

and EU, other RCN projects : 248

- Total : 378

Average annual personnel years: -Researchers, incl. PhD cand.: 46.1 -Administration: 2.4

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The CeSOS Board• Torbjørn Digernes, Dean, IVT Faculty/Rector, NTNU,

(chairman 2002-2005, member since 2006-)• Ingvald Strømmen, Dean, IVT Faculty, NTNU,

(chairman 2006-)• Carl A. Carlsen, Director of research, (2002-2006), DNV• Pål G. Bergan, Director of research and innovation

(2007-2008)• Frode Kamsvåg, Head of Department of Hydrodynamics,

Structures and Stability, DNV (2009-2010) • Tommy Bjørnsen, Regional Manager, DNV (2010-2011)• Liv Astri Hovem, Director of operations,

Technical Advisory Ship and Offshore, DNV (2011-)• Trond Singsaas, Director of organization and

development, NTNU, (2002-2005) • Arne Sølvberg, Dean, IME Faculty, NTNU (2002-2008)• Geir Egil Øien, Dean, IME Faculty, NTNU (2009-)• Oddvar Aam, Managing director, MARINTEK,

(2002-2008)• Oddvar I. Eide, Managing director. MARINTEK,

(2009-)

Current Boardand Centre director

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Personnel Key persons

Senior researchers

4 adjunct prof. (DTU; ILS Oy; U. Newcastle, AU); 3 adjunct prof. NTNU9 visiting professors, researchers, postdoctors8 postdoctors/researchers

PhD candidates - 27-60 candidates, making up

60-70% of the person years Cooperation with previous CeSOS employees:

- MARINTEK - SINTEF Fishery and Aquaculture - DNV JIP on whipping/springing - INSEAN, DTU, SJTU, MIT, Osaka university; Keppel Singapore

3 MIT professors; 11 Long-term visiting

professors & researchers,12 postdoctors

Daring, Demanding,Dynamic,

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(deceased)

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T.Moan CeSOS

Personnel in 201210

Research Activities -overview

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A.Wave induced motions and loads

Water entry and exit behaviour

Water entry of free fall life boats

Sloshing in tanks

Nonlinear ship motions withgreen water and slamming

- numerical solution ofNavier Stokes equations

Understand the phenomenaDevelop mathematical modelsAssess the inherent model

uncertainty

Thematic research areas

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B. Structural load effects General- different structures- fluid-structure interaction- stochastic features

1. Frequency and Time domain simulation ofnonlinear, multibody and flexible oceanstructures

2. Stochastic dynamic analysis of extremeload effects for multiplestochastic load effects

3. Fatigue due to nonlinear effects- wave-, High- and Low-frequency

4. Wave load effects in damagedfloating structures

0 50 100 150 200 250 300 350 400-5

0

5

time seconds

load

s

X(t)

Thematic research areas

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5. Effect of weather forecasting andheavy weather avoidance in shipoperations

6. Uncertaintainty & reliability analysis- Uncertainty analysis of

still-water and wave-inducedload effects; and

- structural reliability analysis

0

0

( )

f

g

P P g

f d

xx

x

x x

mTrueX value

Pr edicted

B. Structural load effects in a reliability context (continued)

Thematic research areas

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C. Ship operations General- hydrodynamic: motion in the horizontalplane (foil, rudder, propeller)

- automatic control- reliability/safety

1. Modelling ship- ship interactionin waves at forward speed

2. Sea-keeping and manoeuvringof high speed vessels

3. Station-keeping and manoeuvring ofships in waves

4. Modeling, estimation and controlof parametric roll for ships

TORQUE INPUT

POWER

RPM

CONSTANTPROPELLER

TORQUE

TORQUE INPUT

POWER

RPM

CONSTANTPROPELLER

TORQUE

Thematic research areas

Ship-ship interaction during replenishment

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Automatic Control of Vessels in a Formation

Gunnerus and the USVin the Trondheimsfjord

Trajectories plot of the RV Gunnerus (dark brown) and the Unmanned Surface Vehicle (USV) (light brown). The USV tightly tracks its assigned position 200 m starboard of the leader vessel.

Thematic research areas

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5. Arctic marine operations

6. Underwater operationsand control (AUV, ROV)

- deep water, arctic

7. Reliability and risk analysis ofmanoeuvering

under different ocean and iceconditions

Level ice Ridge Ice berg

modelling of ice forces for- hull strength and- ship resistance- manoeuvering forces

Thematic research areasC. Ship operations (continued)

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General.- motion simulations- automatic control- human factors- reliability/safety assessment

1. Simulation and control of complexmarine operations

Example: Development of a numericalmodel for anchor handling operationsfor assessing

- system design- planning operations- simulator for crew training

2. Risk analysis of positioningsystems for deep-water FPS- Thruster assisted mooring

under sea and ice loads

Thematic research areasD. Stationary marine operations

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Dynamic positioning in severe sea states

• Local thruster control of propellers based on speed, torque and power

• Anti-spin control• Ant-spin thrust allocation

Thematic research areas

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1. Vortex induced vibrations-combined in-line and cross-flowresponse-inverse analysis of forces-time domain methods

2. Riser analysis-Dynamic response of slug flow-Integrated analysis of riser andheave compensator

3. Tension control of risers ………4. Extreme response estimation

E. Slender marine structuresThematic research areas

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1. Modelling and control of mobile, interconnected structures for aquaculture in harsh conditions

- hydrodynamics- structural mechanics- automatic control

- system design- operations

Preventfish escape

Challenges:- interaction between floater,

net cage, mooring and possibly food barge

Thematic research areasF. Aquacultural facilities

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21Thematic research areasG. Renewable Ocean Energy

Wind energy

StrategyCombine offshore technologywith industrial energy echnology

CeSOS research

Wave energyT.Moan CeSOS

Integrated dynamic analysis of systems with - aero-, hydro-dynamic loads,- elastic-, hydaulic-..properties- considering control featuresto estimate the response of- the rotor, structure, mooring system- the drivetrain

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Source: NREL/Wind power today, 2010.

Analysis for design of offshore wind turbines

Mechanical drive train w/gear box

Direct drive

Hydraulic transfer(Chapdrive concept)

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Thematic research areas

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Results PhD candidates

- graduated until 31.12.12 : 57- expected graduates 2013-2016: 40+ ?

Training of other personnel- researchers/postdoctors- MSc students

Generating & disseminating new knowledge- Publications- Software- Other results

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- Share of foreigners among PhD graduates: 55 % Share of foreign PhD candidates that started working in Norway: 75%

- Share of foreign researchers: 2003 (35%) to 2012 (80%)

Employee Category researcherPhD candidates

Postdoctors

Academia 20 % 30 %Research institutes 25 % 15 %Industry 55 % 55 %

First job for researchers after leaving CeSOS

Foreign researchers

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25 Results: Publications

-8 books + 3 translations published in 2005-2012

- 34 book chapters- 51 keynote lectures-ca 380 journal papers - 620 conference papers

Dissemination aimed at special target groups

Dissemination to the general public

Coverage in massmedia

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Results: Some quality measures• Best paper awards

journals/conferences: 10

• Esso award at NTNU for best PhD thesis: 4 (+other prizes)

• Research awards, incl. membership of academies of science; honorary dr./prof.): 16

• Keynote lectures at major international conferences: 51

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International Scientific Conferences - members of organising committees, etc

typically 10 – 12 conferences every year

Editorial board of Journals- editorial board members of 22 journals, of which:- editor of 2 and associate editor of 3 journals

International Networking (Above activities + visits etc)

Results: Dissemination & networking…..

Ida Aglen:Researcher grand prixwinner

Morten Breivik:USV experimentson TVSchrødinger katt

Popular presentations

MIT INSEAN, Rome

Other universities& research institutes

CSSRC, Wuxi

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CeSOS Research HighlightsConference on May 27-29 2013, Trondheim

Further dissemination

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Results: MSc education

• Improving the quality of the MSc education by providing an excellent environment for research and study through

- the additional resources (accessible) for teaching/advicing- provides basis for research based teaching/learning(supervising 20-25 MSc students every year)

- research publications- international textbooks

• Improving, especially international, recruitment of MSc studentsby increased visibility of a large, dynamic research and study environment with a focus on new problems, …

• CeSOS have hosted postdoctors/ researchers that have been employed in academia:- 2 Prof., 2 Prof. II at NTNU - 10 Prof. in foreign universities

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Continued excellence in marine technology

CeSOS continuation – with alternative support with e.g. PhD candidates (40+), involvement in projects:- CRI CREATE (2006-2014)- CEER NOWITECH (2009-2017)- 7th EU FR MARINA platform (2009-2014), Mare-Wint (2012-2016)- other RCN, EU projects

Competence in the Marine Technology Centre- personnel (with employment or new recruitment) MARINTEK, SINTEF Fishery and Aquaculture, NTNU (keypersons and employees)

- publications, textbooks

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Infrastructure

Autonomous Marine Operations and Systems (AMOS) (2013-2022)

Continued excellence in marine technology

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Concluding remarks- Increased ambitions and focus on excellencehas strengthened the marine technology research and qualityas well as organising and managing research

- Increased internationalisation - Increased international visibility (attractiveness in research consortia, recruitment of researchers and MSc candidates)

- attracts national and international research funding! - contributing to the realization of AMOS – and hopefullya continuous sequence of CoE/CRI/… centres in a future Ocean Space Centre

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33Acknowledgement

- CeSOS colleagues for contributing to make CeSOS a CoE

- the Research Council of Norway for initiating and sponsoring CeSOS

- NTNU, MARINTEK, SINTEF Fishery and Aquaculture,Det Norske Veritas, Statoil for financial support and cooperation

- International partners: CSSRC, DTU, INSEAN, MIT, and othersfor cooperation

Thank you!

T.Moan CeSOS