Model Object Types

The Design Model is organized in the Design Structure as described in a separate document Model Structures, including the object types building up the Design Model. Some of this information is duplicated below when considered especially important for a general understanding of Hull.

The block in the Design Model is normally not equal to an assembly (a node in the assembly structure). It should primarily be considered a geographically constrained container of panels, used to establish the Design Structure (for further information, see the document referred to above).

The panel is the central modelling unit when creating the hull structure, especially in the internal structure. Panels may be planar ("plane panels") in the internal structure or with arbitrary shape in sculptured surfaces (called "curved panels" even if they should happen to be planar).

In normal shipbuilding terminology a panel is a big flat structure consisting of several plates with mostly parallel stiffeners, typically in the flat of bottom, flat of side or in big platforms or bulkheads. Such panels may be assembled in panel lines.

The AVEVA Marine concept of a panel is much more general and a panel may range in size and complexity from a small bracket-like structure consisting of a plate only to a complete deck with hundreds of parts (plates, brackets, stiffeners, pillars, ) and attributes of different kinds.

Special types of plane panels are knuckled panels (with their sub-panels) and panels brackets, see.

The Reference Surface Objects (RSOs) represent the main inner structures, normally generated in Initial Design Surface/Compartments, but also to a limited extent possible to generate in Structural Design. The RSOs can be used for two purposes when creating the Design Model:

• To be given steel properties and be used to automatically generate large panels

• To be a stable location and boundary reference for manually generated panels