A design method of fpso hull shape

Abstract

The invention relates to a design method of FPSO (floating production storage and offloading) hull lines. The design method comprises the following steps: (1) determining a hull outer contour: forming the hull outer contour by adopting a cuboid with chamfers; (2) amending lines of a stern part: taking any height plane, respectively using a point located on the side boundary of a hull stern flat board and a point located on a stern keel rising line as two ends, performing interpolation along the ship length direction by adopting a cubic spline interpolation curve, then changing height, and repeating the interpolation process; (3) amending lines of a bow part: taking any height plane, respectively using a point located on the side boundary of a hull bow flat board, a point located on the facial line of a key station, and a point located on a bow keel rising line as three end points, performing interpolation along the ship length direction by adopting the cubic spline interpolation curve, then changing height, and repeating the interpolation process; and (4) performing line height interpolation according to different half-width positions: performing interpolation in the ship width direction on the hull contour to form a curve of hull length and height under different hull widths, and finishing drawing of a lines plan.

Description

technical field [0001] The invention relates to an FPSO hull profile design method, which belongs to the technical field of offshore oil exploitation. Background technique [0002] FPSO (Floating Production Storage and Offloading Unit) is a ship-shaped offshore floating structure. Since it has various functions such as oil and gas extraction, processing, storage, and export, it can carry out independent full-sea development of oil and gas fields, so it is the first choice for the development of deep-sea oil and gas resources. For the overall design of FPSO, the molded line design technology is an extremely critical part, especially its bow and stern molded lines have an important impact on the floating state of the hull, module layout and local structural strength design, and also determine the hull to a certain extent. Movement and positioning performance of target oil and gas fields. [0003] Unlike shipping ships, FPSO is required to have a large deck area and cabin cap...

AI Technical Summary

Problems solved by technology

In the actual project operation process, since the ship type development is divided into two parts, there are interfaces in many aspects such as heavy control, stability, module layout, etc., often resulting in difficulties in communication and coordination, which affects the progress of the project

Images