Obtaining method of intersecting line of double-beveled plane of hull and cylindrical cylinder body and cylinder body

Abstract

The invention relates to the technical field of ship engineering, and discloses an obtaining method of an intersecting line of a double-beveled plane of a hull and a cylindrical cylinder body. According to the method of the invention, a horizontal cross-sectional view and a longitudinal cross-sectional view of cut intersection of the cylindrical cylinder body and the double-beveled plane on the hull are utilized, and rib lines of the hull are projected onto the double-beveled plane, an auxiliary line intersected with the rib lines on the double-beveled plane are made, the intersecting line ellipse of the cylindrical cylinder body and the double-beveled plane is obtained through utilizing a three-plane projection relationship between the horizontal cross-sectional view and the longitudinal cross-sectional view, and the intersecting line ellipse of the cylindrical cylinder body is obtained. The invention also provides the cylinder body manufactured by adopting the method to obtain the intersecting line. The method provided by the invention is convenient in operation, and improves the speed and the precision of cut intersection of the cylindrical cylinder body and the double-beveled plane and the production efficiency as compared with traditional unfolding methods.

Description

technical field [0001] The invention relates to the technical field of ship engineering, in particular to a method for obtaining an intersecting line between a cylindrical body and a double oblique tangent plane of a ship body, and the body. Background technique [0002] In shipbuilding, the cylindrical structure of the hull often needs to be cut and intersected with the hull in the form of oblique or double oblique cuts. appears in the form of delivery. When the size of the cylinder is too large and needs to be processed by plate rolling, in the process of manufacturing and installing these cylinders, it is necessary to first obtain the cross-section of the cylinder and the hull panel, and then the end section of the cylinder can be obtained of the expansion. [0003] For a long time, when lofting the end intersecting line of the cylindrical body, the traditional method is used to obtain the intersecting line between the cylindrical body and the double oblique plane. The...

AI Technical Summary

Problems solved by technology

This method of calculating the intersecting line between the cylindrical body and the double oblique plane adopts the traditional method, which has many steps and low efficiency, which affects the production efficiency.

Moreover, the error of the cross section between the cylinder body and the hull panel obtained by the traditional method is relatively large, and the deviation of the cross section will cause interference or gaps between the end surface of the cylinder body and the hull panel, which seriously affects the cylinder body. Quality of connection to hull panels

In actual production, in order to leave enough machining allowance to eliminate the interference or gap between the cylindrical shell and the hull panel, during the installation stage, the on-site processing personnel need to perform repeated trimming several times before they can be trimmed in place, which greatly increases the labor costs of the on-site workers. workload, but also reduce work efficiency and assembly errors

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