Sail-assisted motor vessels weather routing using a fuzzy logic model |
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Authors: | Stéphane Marie Eric Courteille |
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Institution: | 1. Université Européenne de Bretagne, INSA-LGCGM - EA 3913, 20, Avenue des Buttes de Coesmes, 35043, Rennes Cedex, France
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Abstract: | In this study sail-assisted motor vessels weather routing is investigated to establish the most economical route by applying available information of the ship's behavior regarding the encountered sea-conditions. To derive the vessel’s fuel use on a route, a fuzzy logic model is constructed through an automated identification process. Only data collected from actual integrated bridge measurements systems is used. Fuzzy modeling is a framework providing a flexible and transparent mathematical structure to describe the physical relationships in a vessel's behavior. This consumption model is integrated into a determinist weather-routing optimization workflow based on a systematic meshing scheme of the sailing area. Pareto-optimization with a multi-objective genetic algorithm is used to maximize fuel economy in a limited or optimum time. The benefits of the developed decision helping tool in sail-assisted motor vessel routing are highlighted on a westbound north Transatlantic journey. |
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