Drawing method for deck side line of ship bow

Abstract

The invention discloses a drawing method for a deck side line of a ship bow. The drawing method includes S1 acquiring a cutaway view, along a width direction of a ship body, of a deck of the ship bow, and drawing a plurality of corresponding rib lines on the cutaway view; S2, acquiring a plurality of intersection points through intersection of the rib lines and an outer plate line of the deck of the ship bow; S3, measuring horizontal distances between the intersection points and a central line of the deck of the ship bow; S4, drawing a line segment containing a plurality of nodes; S5, drawing a vertical line on each node with an extension length of one end of each vertical line, equal to corresponding horizontal distance; and S6, acquiring a top view of the deck side line of the ship bow through a linear fitting between end points of the adjacent vertical lines. The horizontal distances between the central line of the deck of the ship bow and the intersection points, acquired through the intersection of the rib lines and the outer plate line of the deck of the ship bow, are measured and projected onto the top view of the deck side line of the ship bow to do linear fitting. Thus the top view with high accuracy of the deck side line of the ship bow is achieved.

Description

technical field [0001] The invention relates to a method for drawing the sideline of the deck on the bow. Background technique [0002] At present, in the stage of structural detailed design, the hull line is not complete. Both the main deck and the forecastle deck have beam arches, and the half-breadth value of the bow gradually tightens with the change of the rib number, resulting in the fact that the actual main deck sideline It is not in any plane, so it is difficult to correctly cut out the vertical projection of the upper deck edge. However, there are many equipment in the bow area of ​​the ship, the structure is complex, and the space is small. The line type with errors will affect the layout of the structure and equipment more, reducing the accuracy of the drawings. For the beam arch on the bow upper deck, the half-width value is gradually decreasing, how to correctly reflect the vertical projection of the upper deck edge in this area, for the accuracy of the subseq...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for drawing the edge line of the bow upper deck with higher drawing precision in order to overcome the defect of the prior art that it is difficult to draw the edge line of the upper bow deck with higher precision

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