   Study on alternative approaches to corrosion protection of ballast tanks using an economic model; ; Rigo, Philippe  et alin Marine Structures (2013) One of the most relevant problems in ship construction and maintenance nowadays is corrosion in ballast tanks of modern merchant vessels. On the one hand, there is a general consensus that the economic ... [more ▼] One of the most relevant problems in ship construction and maintenance nowadays is corrosion in ballast tanks of modern merchant vessels. On the one hand, there is a general consensus that the economic lifespan of such a vessel depends, to a large degree, upon the corrosion state of its ballast tanks, while on the other hand these ballast tanks, located between the outer hull and the cargo tanks, makes routine inspection and maintenance a difficult task. Today, ship's ballast tanks are usually constructed in steel and protected with an epoxy coating backed up by sacrificial zinc anodes. Such a construction has been applied without significant alterations for many years. The objective of this economic study is to compare this construction method with some potential alternatives. The considered alternatives are: (1) an increase in structural scantlings, eliminating the necessity to replace corroded at a cost of real cargo carrying capacity of the ship, (2) application of the novel and more durable TSCF25 coating (3), the use of corrosion resistant steel in ship construction and (4) a standard PSPC15 coating combined with lifetime lasting aluminum sacrificial anodes. A cost model was used to evaluate these alternative options together with sensitivity analysis. It is concluded that the durable coating and the use of lifetime lasting aluminum anodes are bound to improve the actual basic tank concept. Corrosion resistant steel becomes attractive when the steel price becomes competitive. [less ▲] Detailed reference viewed: 17 (1 ULg)REDUCING THE COST OF BALLAST TANK CORROSION - A TECHNICAL AND ECONOMIC MODELLING APPROACH; ; Rigo, Philippe et alin Marine Structures (2013) Reducing the Cost of Ballast Tank Corrosion through Innovative Ship Design: an Economic Modeling Approach Detailed reference viewed: 22 (5 ULg) Extension of the Super-Elements Method to the Analysis of Oblique Collision Between Two ShipsBuldgen, Loïc ; ; Rigo, Philippe in Marine Structures (2012) Detailed reference viewed: 23 (8 ULg)Scantling Multi-objective Optimisation of a LNG CarrierCaprace, Jean-David ; Bair, Frédéric ; Rigo, Philippe in Marine Structures (2010), 23(3), 288-302 Numerous real-world problems relating to ship design are characterized by many alternatives. Moreover in the scantling design, minimum production cost, minimum weight and maximum moment of inertia ... [more ▼] Numerous real-world problems relating to ship design are characterized by many alternatives. Moreover in the scantling design, minimum production cost, minimum weight and maximum moment of inertia (stiffness) are conflicting objectives. Ship design is a complex endeavour requiring the successful coordination of many different disciplines, both technical and non-technical. Basic design is the least defined stage of the ship design process and seeks to define the optimal amidships section structure. For that purpose, recent improvements were made to the LBR-5 software to optimise the scantling of ship sections by considering production cost, weight and moment of inertia in the optimisation objective function. A real multi-criterion optimisation of a LNG carrier is conducted in this paper to illustrate the analysis process. Pareto frontiers are obtained and results highlight that LBR-5 is competitive software to optimise scantling of ships at very early design stage with management of critical problems studied normally at a later step of the design. [less ▲] Detailed reference viewed: 107 (11 ULg)Post-buckling behaviour and strength of multi-stiffened aluminium panels under combined axial compression and lateral pressure; ; Rigo, Philippe in Marine Structures (2010), 23 Detailed reference viewed: 70 (8 ULg)Sensitivity analysis on ultimate strength of aluminium stiffened panelsRigo, Philippe ; ; et alin Marine Structures (2003) Detailed reference viewed: 49 (5 ULg)Scantling Optimization Based on Convex Linearizations and a Dual ApproachRigo, Philippe ; Fleury, Claude in Marine Structures (2001) Detailed reference viewed: 56 (16 ULg)A Module-Oriented Tool for Optimum Design of Stiffened StructuresRigo, Philippe in Marine Structures (2001) Detailed reference viewed: 39 (1 ULg)Finite Element Comparative Study of Ship Structural DetailsRigo, Philippe ; in Marine Structures (1998) Detailed reference viewed: 37 (1 ULg)Two-Phase Finite Element Comparative Study of a Side Structure of a Middle Size TankerRigo, Philippe ; in Marine Structures (1996) Detailed reference viewed: 37 (4 ULg)The Computation of the Cylindrical Structures Applied to Naval ArchitectureRigo, Philippe in Marine Structures (1992) Detailed reference viewed: 32 (0 ULg) |
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