Method for centering centerline of subsection hull constructed in two-island mode

Abstract

The invention discloses a method for centering a centerline of a subsection hull constructed in a two-island mode, which comprises the following steps: (1) reasonably dividing subsections; (2) arranging an involution line through subsection modeling; (3) drawing a centerline of a slipway, modifying the centerline after hoisting and positioning the subsections and drawing a high-accuracy centerlineafter a deck of the hull is run through fully; (4) preventing the subsections from sliding downwards and moving; (5) manufacturing and positioning the subsections; and (6) surveying the centerlines of the deck and a benchmark platform. The method ensures the accuracy of the centerline of the hull by controlling key points of each link in the design and construction. The application of the methodgreatly shortens shipbuilding period so as to greatly save manufacturing cost and achieve the aim of improving the speed of ship construction, and simultaneously compared with the centerline accuracyof the prior ships, the centerline accuracy of the hull is improved greatly.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a method for centering the centerline of a hull when a ship adopts a "two-island" construction. Background technique [0002] For some ship types, especially those with multi-layered long decks and platforms, the accuracy of centerline alignment of the hull is quite high. If the hull construction still adopts the previous "one-island" construction, although the difficulty of its construction will be reduced, and the difficulty of segmented centering control will also be reduced, but the construction period will inevitably be greatly extended. [0003] With the advancement of science and technology, the development of new crafts and new technologies in shipbuilding, the "two-island style" is now widely used in shipbuilding. Although this process greatly shortens the construction period, during the construction, the sections are closed in the dock. When the decks ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for centering the centerline of the hull during ship construction, so as to solve the problem of meeting the high precision of centerline alignment for certain ship types when the ship adopts the "two-island" construction. Require

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