Background

The design and production of a ship can be divided into a number of phases. This division into phases can be made in many ways. One possible way, consciously made on a rough level, is shown in the figure:

Figure 1:1. The phases in ship design and production

When applied on the hull information flow, the different phases may include activities as outlined below.

Project calculations

Project calculations is the early phase when the overall characteristics of the ship are defined. The dimensions of the ship are set, hydrostatic and stability calculations are performed Among important results from this activity is a preliminary form.

Design

In the design phase, the predesign (classification) drawings are developed. Strength analysis may be performed to select plate thicknesses, Traditionally, the result of the design phase is documented in the design (classification) drawings.

Detailed design

In the detailed design (engineering) process, the preliminary design is penetrated in detail and adapted to production needs. Production information (drawings, burning tapes, sketches ) is developed.

Production

The production phase includes the manufacturing of parts and the assembly of the ship.

Curved Hull Modelling (Curved Hull) is intended to be used from the early design phase when the ship may be outlined in manually made, rough sketches. Based on such sketches, on preliminary form information, the results of strength calculations , Curved Hull establishes a design model containing the curved hull objects.

In one system Curved Hull covers all the activities from the early design to the production preparation.