Initial Design Hydrostatics

AVEVA Initial Design Hydrostatics forms an integral part of the AVEVA Initial Design application for ship design. It provides the main tool by which the hydrostatics, stability and other routine naval architectural calculations can be performed. It is intended, therefore, mainly for use by Naval Architects, in the design, assessment and derivation of the hullform characteristics and of the effects of internal arrangements and loading. However, it can also be used in order to provide the results of other analyzes, specifically in support of launching investigations and inclining experiments.

Note:
The AVEVA Initial Design Hydrostatics application is in this manual and in the program user interface referred to as Calc.

Calc is designed for application to mono-hull vessels, however with some limitations it can be applied to a wide range of floating objects. Calc now includes the capability of assessing the hydrodynamics performance of a hull form; this functionality was previously included within by the AVEVA Initial Design Hydrodynamics module. The hydrodynamic functions are documented in the Hydrodynamics chapter in this manual.

Calc is solely an assessment module and it relies implicitly upon input of the ship definition, including the general particulars and compartment names, from a geometry modeller. This definition is to be transferred into Calc in the form of a Initial Design Geometry XML file, or alternatively a facet (FCT) or GDS file, which contains all relevant information for the external hull shape and all of the compartments, inclusive of the upper/weather deck, as well as the various surfaces that establish internal compartmentation. In order to maintain data consistency within the whole Initial Design applications suite of programs, the geometry can only be altered from within the AVEVA Marine geometry modelling programs and there is no facility for redefining the geometry from within Calc, except for renaming compartments and setting permeabilities.

Whilst it is not necessary for you to read large sections of the manual prior to the use of Calc, it is strongly recommended that particular attention is paid to this chapter (the Introduction) even by experienced users of similar software. It contains information about the module which can considerably enhance your understanding and hence performance with the software.