An Overview of CeSOS CeSOS Background Safe and sustainable utilisation of the oceans. Outline

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1 1 2 An Overview of CeSOS by Torgeir Moan Outline - Background Objective and Scope - Resources (Budget, personnel,laborataries) - Research Activities - Results (research training, publications) - Continued Excellence.. - Concluding remarks 3 CeSOS Background Safe and sustainable utilisation of the oceans 4 CeSOS research strategy Basic research: - development of disciplines and - integration of disciplines in view of - technological visions in close contact with the industry Materialtechnology Structural mechanics Principal Research Areas CeSOS Objective & Scope Integration of Disciplines Research Challenges Theory Structural Mechanics HydrodynamicsCControl Automatic Experiments/ full-scale obs. Develop new, fundamental knowledge about ships and ocean structures behaviour in a chaotic sea Oceanography Meteorology Hydrodynamics Mathematical modelling Automatic Control Experimental/ In-service obs. Electro - Sensor- Instrumentation technology 1

2 5 CeSOS research strategy, continued 6 Resources Key economic data (MNOK) 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) - Basic contribution - Contributions : 130 and EU, other RCN projects : 248 in close contact with e.g. - visionary companies (industry) - international research community - Total : 378 Our research is hence closely linked to innovation Average annual personnel years: -Researchers, incl. PhD cand.: Administration: The CeSOS Board 8 Personnel Key persons Current Board and Centre director Torbjørn Digernes, Dean, IVT Faculty/Rector, NTNU, (chairman , member since 2006-) Ingvald Strømmen, Dean, IVT Faculty, NTNU, (chairman 2006-) Carl A. Carlsen, Director of research, ( ), DNV Pål G. Bergan, Director of research and innovation ( ) Frode Kamsvåg, Head of Department of Hydrodynamics, Structures and Stability, DNV ( ) Tommy Bjørnsen, Regional Manager, DNV ( ) Liv Astri Hovem, Director of operations, Technical Advisory Ship and Offshore, DNV (2011-) Trond Singsaas, Director of organization and development, NTNU, ( ) Arne Sølvberg, Dean, IME Faculty, NTNU ( ) Geir Egil Øien, Dean, IME Faculty, NTNU (2009-) Oddvar Aam, Managing director, MARINTEK, ( ) Oddvar I. Eide, Managing director. MARINTEK, (2009-) (deceased) Senior researchers 3 MIT professors; 11 Long-term visiting professors & researchers, 12 postdoctors 4 adjunct prof. (DTU; ILS Oy; U. Newcastle, AU); 3 adjunct prof. NTNU 9 visiting professors, researchers, postdoctors 8 postdoctors/researchers Daring, PhD candidates Demanding, candidates, making up Dynamic, 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 2

3 9 Personnel in Research Activities - overview 11 A.Wave induced motions and loads Understand the phenomena Develop mathematical models Assess the inherent model uncertainty Water entry and exit behaviour Water entry of free fall life boats 12 B. Structural load effects General - different structures - fluid-structure interaction - stochastic features 1. Frequency and Time domain simulation of nonlinear, multibody and flexible ocean structures 2. Stochastic dynamic analysis of extreme load effects for multiple stochastic load effects Sloshing in tanks Nonlinear ship motions with green water and slamming - numerical solution of Navier Stokes equations loads time seconds X(t) 3. Fatigue due to nonlinear effects - wave-, High- and Low-frequency 4. Wave load effects in damaged floating structures 3

4 TORQUE INPUT POWER RPM CONSTANT PROPELLER TORQUE B. Structural load effects in a reliability context (continued) 5. Effect of weather forecasting and heavy weather avoidance in ship operations 14 C. Ship operations General - hydrodynamic: motion in the horizontal plane (foil, rudder, propeller) - automatic control - reliability/safety 6. Uncertaintainty & reliability analysis - Uncertainty analysis of still-water and wave-induced load effects; and Ship-ship interaction during replenishment 1. Modelling ship- ship interaction in waves at forward speed 2. Sea-keeping and manoeuvring of high speed vessels True Xm value Pr edicted - structural reliability analysis 3. Station-keeping and manoeuvring of ships in waves Pf P g x 0 fx x dx ( ) g x 0 4. Modeling, estimation and control of parametric roll for ships 15 Automatic Control of Vessels in a Formation 16 C. Ship operations (continued) 5. Arctic marine operations modelling of ice forces for - hull strength and - ship resistance - manoeuvering forces 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. Gunnerus and the USV in the Trondheimsfjord Level ice Ridge Ice berg 6. Underwater operations and control (AUV, ROV) - deep water, arctic 7. Reliability and risk analysis of manoeuvering under different ocean and ice conditions 4

5 17 D. Stationary marine operations General. - motion simulations - automatic control - human factors - reliability/safety assessment 1. Simulation and control of complex marine operations 18 Dynamic positioning in severe sea states Local thruster control of propellers based on speed, torque and power Anti-spin control Ant-spin thrust allocation Example: Development of a numerical model for anchor handling operations for assessing - system design - planning operations - simulator for crew training 2. Risk analysis of positioning systems for deep-water FPS - Thruster assisted mooring under sea and ice loads 19 E. Slender marine structures 20 F. Aquacultural facilities 1. Modelling and control of mobile, interconnected structures for aquaculture in harsh conditions 1. Vortex induced vibrations -combined in-line and cross-flow response -inverse analysis of forces -time domain methods 2. Riser analysis -Dynamic response of slug flow -Integrated analysis of riser and heave compensator 3. Tension control of risers 4. Extreme response estimation Prevent fish escape - hydrodynamics - structural mechanics - automatic control - system design - operations Challenges: - interaction between floater, net cage, mooring and possibly food barge 5

6 21 G. Renewable Ocean Energy Wind energy Strategy Combine offshore technology with industrial energy echnology CeSOS research Integrated dynamic analysis of systems with - aero-, hydro-dynamic loads, - elastic-, hydaulic-..properties - considering control features to estimate the response of - the rotor, structure, mooring system - the drivetrain 22 Analysis for design of offshore wind turbines Mechanical drive train w/gear box Direct drive Hydraulic transfer (Chapdrive concept) Wave energy Source: NREL/Wind power today, Results PhD candidates - graduated until : 57 - expected graduates : 40+? Training of other personnel - researchers/postdoctors - MSc students 24 Results: Personnel Foreign researchers - Share of foreign researchers: 2003 (35%) to 2012 (80%) - Share of foreigners among PhD graduates: 55 % Share of foreign PhD candidates that started working in Norway: 75% First job for researchers after leaving CeSOS Generating & disseminating new knowledge - Publications -Software - Other results Employee Category researcher PhD Postdoctors candidates Academia 20 % 30 % Research institutes 25 % 15 % Industry 55 % 55 % 6

7 This image cannot currently be displayed. 25 Results: Publications 26 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.): 16-8 books + 3 translations published in book chapters - 51 keynote lectures -ca 380 journal papers conference papers Dissemination aimed at special target groups Dissemination to the general public Coverage in mass media Keynote lectures at major international conferences: Results: Dissemination & networking.. International Scientific Conferences - members of organising committees, etc typically conferences every year 28 Further dissemination 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) MIT INSEAN, Rome CSSRC, Other universities Wuxi & research institutes CeSOS Research Highlights Conference on May , Trondheim Popular presentations Ida Aglen: Researcher grand prix winner Morten Breivik: USV experiments on TV Schrødinger katt 7

8 29 Results: MSc education 30 Continued excellence in marine technology 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 MSc students every year) - research publications - international textbooks Improving, especially international, recruitment of MSc students by 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 CeSOS continuation with alternative support with e.g. PhD candidates (40+), involvement in projects: - CRI CREATE ( ) - CEER NOWITECH ( ) - 7th EU FR MARINA platform ( ), Mare-Wint ( ) - 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 31 Continued excellence in marine technology Autonomous Marine Operations and Systems (AMOS) ( ) Infrastructure 32 Concluding remarks - Increased ambitions and focus on excellence has strengthened the marine technology research and quality as 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 hopefully a continuous sequence of CoE/CRI/ centres in a future Ocean Space Centre 8

9 33 Acknowledgement - 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 others for cooperation - CeSOS colleagues for contributing to make CeSOS a CoE Thank you! 9