Marks for Assembly (GSD)

One of the major shipyard requirements is to reduce the need for additional fitting during assembly and reduce production time. One way to achieve this is to improve part-level fabrication accuracy by introducing new technology and equipment. Another approach is to improve accuracy throughout the assembly process, preferably at each step, to reduce accumulated errors.

An important way to improve accuracy in both fabrication and assembly is to use assembly marks in the hull application. These marks are known as GSDs (Gütesicherungsdreiecke, or quality assurance triangles). They are used for alignment during assembly and for accuracy checks after assembly.

There are two types of GSDs:

• Symmetric triangle with a 90 deg angle,

• Straight line.

When viewed in isolation, you cannot determine which tip or end of a GSD is significant. For example, this can occur when using a marking line. Therefore, the meaning of a GSD depends on the context in which it appears.For more information see Production Design Configurations Window.

Note: The existing GSD/alignment marking functionality has been extended to support face plates. New configuration options are now available during part generation processing, see Production Design Configurations Window. Plates and profiles are stored in the MANU database as a PPLATE/PPROF attribute.