General Principles

The handling of knuckled structures has the following characteristics.

• Knuckled plates are supposed to be generated by knuckled panels in a similar way as ordinary plane plate parts are parts of plane panels.

• The handling of knuckled panels is an extension to the handling of plane panels.

• The individual planar parts of a knuckled structure are described in panels of their own (called subpanels) which are supposed to be combined into one main knuckled panel.

• The subpanels have many characteristics common with bracket panels, for example, they do not individually belong to any blocks, the subpanels plate parts cannot be used individually as parts, the symmetry codes for panels are irrelevant for subpanels,

• Knuckled structures where the knuckle is along a seam between plates are preferably divided into ordinary individual panels.

• Knuckled panels need not be restricted to the regular types of knuckled panel you may find for example, in corrugated bulkheads. Thus a knuckled panel may consist of a number of subpanels, more or less arbitrarily connected to each other.

• Each individual subpanel may consist of several plate parts. However, plate parts having knuckle lines as boundaries must be possible to combine with plate parts on adjoining subpanels.