This presentation shows the recent work of the CIMNE in the maritime transport field. It was given at the Conference on Computation and Big Data in Transport (CM3-2017) held in November 22 &ndash; 23, 2017

García-Espinosa, Julio

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Challenges on computational models for ship design and navigation:Ongoing projects at CIMNE MARINEJulio García-EspinosaOUTLINE• Some completed projects• On-going projects• Fibreship• Nice-Ship• STM ValidationCIMNE MARINESOME COMPLETED PROJECTSAdvanced numerical simulation and performance evaluation of wave adaptive modular vessels in spray generating conditions (WAM-V). 2012-2014. ONR Global.Evaluating performance of the air cushion and seals of a SES T-Craft in waves (M-SES). 2009-2012. ONR Global.CIMNE MARINE: SOME COMPLETED PROJECTSDevelopment of a software environment fordesign and verification of marine wind turbines. 2010-2012. Iberdrola.CIMNE MARINE: SOME COMPLETED PROJECTSDesign and assessment of wave energy harnesing devices. 2012-2015. Abengoa.Multimodal interoperatibility e-services forLogistics and environmental sustainability(MIELE). 2010-2013. MOS 2010-EU-21105-SCIMNE MARINE: SOME COMPLETED PROJECTSCIMNE MARINEON-GOING PROJECTSCIMNE MARINE: NICE-SHIP PROJECT“Development of new LagrangianPicture retrieved from: https://www.nytimes.com/interactive/2017/05/03/science/earth/arctic-shipping.htmlEuropean routes European routesNorth American routesNorth American routesJapanJapanIce-breaking shipsRegular shipsice thickness>1m      0.5mice thickness>1m  0.5mAtlantic OceanPacific Ocean2017 to 2030 2045 to 2060• Until now, exploitation of the vast stores resources in the far north has largely been confined to the land. But current retreating of sea ice is enabling an expansion northwards of commercial fisheries and, in time, it will facilitate the exploitation of the mineral and hydrocarbon resources in the Arctic Circle. • De-icing of the existing ice masses in the far north region allows Arctic trade routes to remain open for longer periods of time. Sailing by northern routes could reduce by 20-30% the journey times and with similar savings in fuel consumption and greenhouse gas emissions.• While nobody disputes today that the exploitation of those opportunities must be properly managed in order to preserve the delicate Arctic environment, it is undeniable that reality of today is that commercial activity and economic development in the Arctic is increasing rapidly.CIMNE MARINE: NICE-SHIP PROJECT• The potential development of the Arctic and Antarctic regions evidence the need for new procedures for estimating the forces that ice exerts on ice-breakers, polar ships and marine structures, and in general, the need for having advanced computational tools able to help naval architects to design the new generation of vessels to operate in polar regions.• The NICE-SHIP (2016 - 2019) project aims to developing a new generation of computational methods, based on the integration of innovative semi-Lagrangianparticle-based and discrete element models for the analysis of the operation of a vessel in an iced sea.Scenario 2: Navigation of ships in brash ice (and broken ice)Scenario 1: Icebreaking performance in level iceCIMNE MARINE: NICE-SHIP PROJECTMODELLING ICE MECHANICSDiscrete Element Method• Material represented by a collection of spherical (ellipsoidal) particles (not micro, usually cms).• Rigid particles, soft contacts.• Adequate contact laws yield desired macroscopic material behaviour (local contact problem).• Contact surfaces (for forces integration) based on weighted Voronoi diagram.• Contact interaction takes into account friction, cohesion, and the possibility of breakage of cohesive bonds.• Dynamics based on standard equations of motion.CIMNE MARINE: NICE-SHIP PROJECTSCENARIO 1 (PRELIMINARY TESTS)Soft ice. 1 meter thick. 1 element in thickness.Hard ice. 1 meter thick. 6 elementsin thickness.Lagrangian governing equations: ௧ ఒ ఒ ௧ ఒ ఒIntegration along trajectory: ఒ ఒ௡ାଵఒ ఒ௡ఒ ఒ௡ାଵLagrangian splitting:ఒ  ∗ఒ௡ାଵఒ ఒ௡ఒ  ∗ఒ௡ାଵఒ ఒ௡ఒ ఒ௡ାଵఒ  ∗ఒ௡ାଵఒ ఒ௡ାଵProjection onto background FE mesh:ఒ ఒ௡ାଵఒ  ∗ఒ௡ାଵ௡ାଵఒ  ௡ାଵ௡ାଵఒ ఒ௡ାଵ௡ାଵ ∗௡ାଵ ௡ାଵ ௡ାଵLagrangian EulerianCIMNE MARINE: NICE-SHIP PROJECTSEMILAGRANGIAN MODEL FOR INCOMPRESSIBLE NAVIER-STOKESStep 2. Once the translation androtation of the ice block is evaluated,the interface of the solid mesh withthe fluid mesh can be calculated.Step 3. Then, the FE space can beenriched, by creating new DOFs oneach of the interface elements for thepressure field (the original shapefunctions are split in two independentfunctions across the interface) andthen statically condensing the newunknowns.(left) Ice block interface over the mesh, (right) resulting enriched finite elements at the interface of the ice block𝐅௘ = න 𝑝 · 𝐧 𝑑Γ୻+ න 𝐧 · 𝛕 𝑑Γ୻Step 1. The movement of the ice block can then be calculated explicitly usingpressure and fluid stresses acting on the boundary in the Lagrangian transport step.Fluid particles trajectories and velocities are imposed using the ice blockinformation.CIMNE MARINE: NICE-SHIP PROJECTA SEMI-LAGRANGIAN METHOD FOR SOLID TRANSPORT IN FLUIDSProofs of concept• 2D flow around a circular cylinder.• Transport of two solid blocks within an uniform flow. CIMNE MARINE: NICE-SHIP PROJECTA SEMI-LAGRANGIAN METHOD FOR SOLID TRANSPORT IN FLUIDSPatrol ship • Length: 75.5 m / 79.8 m• Draft: 4.0 m• Beam: 12.6 m / 13.2 m• Displacement: 1813 t• Velocity: 8knIce covered waters• Brash ice channel of 25 m wide• Ice blocks of average size 0.5 m• 300 x 25 ice blocksPatrol ship in ice covered waters (brash ice)CIMNE MARINE: NICE-SHIP PROJECTSCENARIO 2 (PRELIMINARY TESTS)Patrol ship in ice covered waters (brash ice)CIMNE MARINE: NICE-SHIP PROJECTSCENARIO 2 (PRELIMINARY TESTS)CIMNE MARINEON-GOING PROJECTSSTM VALIDATION• STM validation project is the second step in a long-term project aimed at developing and deployment of a Sea Traffic Management system connects and updates the maritime world in real time.• STM-services allow personnel on-board and on shore to make decisions based on real-time information. These services enable more just-in-time arrivals, right steaming, reduced administrative burden and decreased risk related to human factors. • Example of services are route optimization services, ship to ship route exchange, enhanced monitoring or port call synchronization.CIMNE has developed different analysis solutions for the PortCDM service. Tasks:• To develop a solution for analysis of the data collected in PortCDM systems in order to validate the concept.• The PortCDM concept has been translated into key performance indicator (KPIs) to enable PortCDM to be measured.• The quantitative data collected on the systems currently deployed at ports has been used to calculate the KPIs.Port Collaborative Decision Making (PortCDM)http://pcdmgot.cimne.comCIMNE has developed the ROS. It evaluates the best route considering: weather forecast/surface currents (speed reduction and IMO safety guidelines), fuel consumption, traffic congestion (statistical prediction), no-go areas (protected, draft restrictions, …), conflicts with other ships routes etc.Route Optimization Service (ROS)• SeaSWIM is a set of open industry standards and best practices,providing an environment where different services can interoperateover organizational boundaries.• CIMNE has worked in the implementation of the SeaSWIM Connector(SSC); an interface to reach STM and its connected actors andservices.• SSC take in account the communication flow between the coreservices of the SeaSWIM (identity registry and identity provider, serviceregistry) and the rest of application services deployed in theinfrastructure.• SSC functionalities help the use of safe communication channels andauthentication standards implementing the general requirements of theSTM infrastructure.Sea System Wide Information Management (SeaSWIM)CIMNE MARINEON-GOING PROJECTSExtra-WeightCARGOExtra-WeightVESSELFIBRESHIPCARGOVESSELA BFuel Reduction (10-15%)Increase cargo capacity (12%) Lower Greenhouse gas emissionsBetter Stability/SafetyImmune to corrosionUnderwater Noise ReductionReduced maintenance & life cycle costs (30%)Aesthetic improvementsContinuous Structural Health Monitoring (safety) 30%Recycling rate (up to 75%) The main objective of the FIBRESHIP project (2017-2020) is to enable the building of the complete hull and superstructure of large-length seagoing and inland ships in FRP materials. In order to achieve this objective, the project will audit innovative FRP materials, elaborate new design and production guidelines, generate efficient inspection methodologies and develop new analysis tools.Project development will focus in three vessel categories that have been targeted as the most promising for the final project market orientationDevelopment of a coupled Seakeeping-FEA analysis tool (structural health monitoring)• Hull girder model: Simple 3D dynamic beam coupled with FEM seakeeping solver. It allows to  analyse quickly long time series of the coupled problem.• 3D detailed model: Complete 3D FEM model (fatigue) uses the information obtained from the hull girder model to generate boundary conditions for the local detailed analysis of the ship structure. Fatigue model evaluates damage by obtaining the quasi-static stiffness at discrete cycle intervals.• IFEM model: Structural Health monitoring + Topology-basedoptimization tool.IFEM model: Structural Health monitoring + Topology-basedoptimization tool: Find the damagepatern that macthes the vibration modes (local and global) monitored in different selected areas of the ship.Development of thermo-mechanical behaviour analysis and collapse assessment tools for laminated composite structuresFire dynamics analysis. Local analysis of a fire scenario will be modelled using a CFD model thus providing detailed information on fire development and local structure degradation (coupling with FEM model + pyrolysis model)Fire propagation analysis. Fire propagation scenarios (involving a number of compartments) will be modelled with a zone fire model to simulate the fire propagation and evaluate the global collapse of the structure (coupling with FEM model + pyrolysis model)Left: preliminary test on intumescent coatings. Right: development of the firedynamics simulation and collapse analysis toolProduction & LifeCycle/DismantlingValidation and demonstrationEngineeringCost-benefit analysis & business planFIBRESHIPMechanical & Fire-Resistance TestsFibre-basedMaterialsManufacturing & Recycling ProcessesSmall & Full-ScaleValidationsWP2WP9WP1WP8WP3 WP4WP7ShippingMarketAnalysisWP10CoordinationDisseminationWP6WP5• Catalogue of applicable materials  and joining techniques by vessels areasMaterials• Adapted  numerical tools for vessels design (structure and fire)• Numerical tools validation (Demo model)• Design report for each vessel category  & Catalogue of admissible structural junctions and details. • Project guidelines for functional design and certification of large-length vessels in FRP materials Engineering• End-users final assessment• European and global business trends• FIBRESHIP Business Canvas and global business plan• Optimum building strategy & techniques• Class Rules & Guidelines for  building process.• Analysis of existing shipyard facilities transformationProduction• Dissemination & Exploitation• Infod ys (workshops) & Open-door industrial days organisation• Regulatory and Standardization of the results• Engineering solutions for aesthetic, on board noise and vibration & underwater noise improvements• Procedures for Sea state & structural stresses measurements and intermediate-scale reaction-to-fire experiments on FRP panels• Inspection and maintenance technologies & procedures• Demonstrator & Production Process Assessment• Guidelines on inspection, repair, monitoring and maintenance applicable to FIBRESHIP concept• Guidelines on waste management in the implementation of FIBRESHIP concept• Structural health monitoring & long-term damage control (as part of the Engineering Guidelines)• Guidelines and Decision Support Tool on life-cycle performance of FIBRESHIP concept)THIS PRESENTATION IS AVAILABLE ATTHANK YOUFOR YOUR ATTENTIONhttps://www.scipedia.com/public/García-Espinosa_2017e

Challenges on computational models for ship design and navigation: Ongoing projects at CIMNE MARINE

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Challenges on computational models for ship design and navigation: Ongoing projects at CIMNE MARINE

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