Feature 2 | CAD/CAM
existing marine technologies, in order to combine their respective strengths. Tere is not the space here to explore all the critical shipyard processes and how they should be represented within the technology, but here are just two examples of capabilities that are a fundamental part of a complete shipbuilding solution: Synchronised design and production –
Te design tasks, the creation of the ship’s build strategy, and the detailed assembly information are all natural bedfellows, but historically they were performed by very different groups of workers with very different priorities. Rather shamefully, shipbuilding technology has all too oſten tended to perpetuate these distinctions, rather than eradicate them! What shipyards require is the ability to select, view and manipulate information from both a designer’s point of view and a production engineer’s point of view, from exactly the same source data. Tis brings enough flexibility to support system- oriented design in the early stage, and the zone-oriented work distribution of later detail design. Production engineering “on the fly” –
Te many different types of production information that are needed for parts manufacture and assembly should, ideally, also be deliverable from one single source
Whether naval or commercial, historically, the technology that supports shipbuilding has only ever been partially integrated. The rest was stitched together by manual effort, leading to errors and rework.
of data, as an integral and automated part of the overall process. Tis enables the production engineering personnel to work in parallel with designers in order to first develop the build strategy and then, later on, to group designed objects into production assemblies. If all elements of hull loſting can be automated in the hull application modules, for example, considerable savings in man-hours and elapsed time will result. In addition the automated routines will give a consistent
output, which will create savings in production. Happily, this complete solution is not
just a vision – it is reality. However, getting there has been an extensive process, involving the combination of different technologies with different
inherent
strengths and shortcomings. Inevitably, this has resulted in some of the component technologies becoming obsolete in their original form. A real-world example can be seen in Aveva’s acquisition of the
3D information can act as the universal ‘binder’ that drives the delivery of all different kinds of shipyard data, including the detailed performance reporting shown here.
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The Naval Architect April 2011
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