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| CNAV0014-2 | Ship structures, Structure analysis, ship production and shipyards
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| Duration : | 100h Th, 7d FW |
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| Credits/ECTS : |
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| Holder(s) : | Philippe Rigo |
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| Language : | Langue française |
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| Course contents : | 1) FUNDAMENTALS OF SHIP STRUCTURES
- Description of structure (transversal, longitudinal and mixed system), ship types (tankers, LNG, containers, passenger ships, multi-hulls ...). Components of structure of ship (longitudinal stiffeners, keel, simple hull, double hull, bow and stern, motor zone, ...). - Basic structural calculation (flexion, scissoring and torsion): primary flexion (beam), secondary (frames) and tertiary sector (plates, stiffeners,...).
- Criterions of dimensioning, states of limit, ....
- Rational approaches (direct) of sizing (scantling) versus rules based approaches. Moderns tools for modeling & structural analysis (FEA) & Optimisation, ....
- An important part of the course is constituted of practical training (weekly)
2) ULTIMATE STRENGTH, RELIABILITITY ANALYSYS, FATIGUE, VIBRATION, OPTIMISATION
- Description of states limit (service, ultimate, accident, ) of the structure of the ship (yielding, buckling and tripping of beams, bukling and ultimate strength of plates and stiffened plates, ultimate bending moment of hull girder, fatigue (curves S-N), vibration, collision & grounding, ...). Ultimate strength of hull girder: simplified approach, curve moment-curvature (progressive collapse, Smith method), non-linear analysis, fluid-structure interaction ....
- Vibrations: theory of vibrations (basic notions); technology aspects: Cause of vibrations in ship structures; Techniques of measurement, control and prevention tecniques; practical impact on design.
- Integration of reliability concepts (loads and strength) in calculation of structures (rule based approaches and direct calculations).
- Materials of constructions (steel, alu, composite materials, sandwich panel ...).
- Introduction to optimization of ship structures.
3) SHIPYARDS
- Shipyard layout (Organisation, implantation, functions, shipyard type, etc.). - Economical context.
- Shipyard production processes.
-- Main stages of shipbuilding production (sequences, material flows, etc.).
-- Modular construction (blocks, section, etc.) .
-- Main workshops in shipyards (machining, cutting, bending, forming, panel line, outfitting, straightening, etc.).
-- Welding and cutting processes (welding types, welding processes, welds control, weld calculation).
-- Launching methods (dry dock, slipway, etc.)
- Modern tools for production simulation and cost assessment
- Concurrent Engineering tools such as Design for Production, Lean manufacturing, Quality Management, etc.
- Scheduling notions (Potential and Pert method) |
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| Course objective : | - The main objective is to give a general overview of the structural problems that must be considered at the conceptual design stage, early design stage and detailed design stage.
The lecture presents the first principle design methods and relies on rational approaches. It surveys the various limit states that must be considered for the structural design and scantling assessment.
- Concerning Shipyards: The objective is the understanding of production technologies and manufacturing methods for shipbuilding industry in order to integrate production limits at the design stage (Design for production) |
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| Prerequisites : | Basic knowledge is structure mechanics |
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| Workshops : | The course includes 5 to 6 practical works. Written works are marked. |
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| Organization : | September to January, organized every year. 1/2 day classes a week and 1/2 day a week to realise practical works. |
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| Written notes : | 3 syllabus (available at secretary's office of ANAST) |
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| Assessment : | Practical work (25%)
Written examination (25%)
Oral examination (50%) |
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| Contacts : | Ph RIGO
Ph.rigo@ulg.ac.be
+32 (0) 4 366 93 66 |
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