General Arrangement Drawing is a communication language that uses graphics to represent principally: volumes, spaces, compartments, bulkheads, hull forms, decks and main equipment’s. The general arrangement of a vessel can be defined as the allocation of volumes for all the crucial functions/operations, correctly synchronized for position and access. The well-organized operation of a ship depends upon the proper arrangement of each individual volume/space and the most efficient interrelationships among all compartments. It is vital that the general arrangement of a ship be usefully, practically and cost-effectively developed with respect to key factors that influence construction and operation cost, in particular the manpower required to operate the vessel. It is essential for those who are involved in shipbuilding industry to understand new tools for this kind of vessel drawing and know how to draw them, saving time for the rest of the process of ship design. In this paper it is showed, for first time in a conference, a new module dedicated to definition and management the compartment arrangement of a ship. Compartment arrangement of a vessel is based on the definition of its spaces. Each space is represented by its 3D model. Spaces contain further information than the geometric one, been able to set different user attributes to them or to their limits. 3D model of the spaces is generated taken as reference the surfaces of the ship as well as auxiliary geometry. It is also possible the definition of spaces from 2D drawing in a specific definition environment. Finally, this compartment arrangement is available for hydrostatic and stability calculations.

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