Ship structures (3D geometric design) (edo218-cad) information use case
This ship structures (3D geometric design) information use case describes the information needed to define the explicit 3D geometric product model for the detailed design of ship structures - including hull, bulkheads, decks and foundations. This use case consists of the items that comprised the structures detailed design product model and the associated 3D solid (Brep) geometric representation. Beyond the items and their geometric representations, this use case entails very little additional design information. See the other edo218 use cases for those design definitions.
This use case is based upon entities and associations defined in ISO10303-218, Ship structures. Note that this standard, also known as Application Protocol (AP) 218 is a superset of the current use case and includes a number of information elements not used in this use case: such as various geometric representations, changes and version history, approvals, engineering analysis definitions and manufacturing definitions.
This information is developed during the following process stage:
- Create structures detailed design
This information supports the following activities:
- Preliminary structural design, including hull form design
- Design transverse bulkheads
- Design transverse frames
- Make hull detail design
- Define plates
- Define profiles
- Define brackets
- Define holes and penetrations
- Define notches for cutouts
This information is used in the following interchanges:
- Detailed design engineer and visualization clients
- Integration of designs from different design engineers
- Shipyard and customer (design deliverable)
This information contains the following kind of entities and associations:
- Characterization and definition of structural parts and systems (plate, profile, built_profile, plate_strake, corrugated_structure, panel_system)
- Structures functional definitions
- Structures design design definitions
- Solid (Brep) explicit geometric representations
The following are out of scope for this use case:
- Associations to moulded surfaces
- Cross sections
- Joint and weld design definitions
Latest Deliverable:
edo218-cad#current.zip
edo218-cad#current-metadata.zip


