Definition of Bracket Concept

To be accepted as a bracket the following conditions must be fulfilled:

• A bracket must not consist of more than one plate part.

• It must not (currently) have any holes

• In the ship model a bracket must always belong to a panel, that means, it can only be accessed in the hull structure via the panel it belongs to.

Brackets are often standardized regarding their general shape, how they are stiffened and not least how they are related to other elements that they connect or support. For this type of standardized brackets the system has an advanced facility that allows a customer to set up his own brackets standards. Moreover, a default standard bracket set-up goes along with an installation of the Hull application. These brackets are called type standard brackets (because they are identified by their type (name)).

Some brackets cannot be described as type standard brackets because they are so special that they cannot easily be controlled by standard parameters. An example of such a bracket can be found in the figure below.

Figure 1:2. A bracket that must be generated as a panel bracket or as a "contour bracket".

For such brackets the option available is to generate the bracket as a panel with a special tag identifying it as a panel bracket. A panel bracket is built up using the same tools that are used when generating a plane panel but it must be tied up to a "mother" panel.

Panel brackets are in most cases generated separately and tied up to its mother panel when this has been activated. If, however, there exists a "standard" of non-standard brackets the system offers an option to integrate the generation of such brackets with the generation of the panel via a Vitesse hook according to a routine that is similar to generation of type standard brackets.

(In addition of brackets mentioned above there are a few very special built-in type standard brackets which a customer cannot change).

AVEVA Marine has a built-in bracket standard and in addition the system is open to let a customer define his own standards.

The rest of this document will give a general description of the conditions for type standard brackets.