A Lofting Fabrication Method of Side Push Grille

Abstract

The invention provides a method for setting out a lateral thrust grid and relates to the technical field of ship lateral thrusters. The method for making the stakeout of the lateral thrust grid includes the steps: S1, in the plane coordinate system, make a cross-sectional view of the cylindrical part of the hull to obtain the line segment AB; make a horizontal cross-sectional view of the cylindrical part of the hull to obtain the line segment CD; S2, in the cross-sectional view Among them, the angle between the line segment AB and the vertical center line is the vertical inclination angle; in the horizontal sectional view, the angle between the line segment CD and the longitudinal center line is the longitudinal inclination angle; S3, in the plane coordinate system, make the horizontal projection of the cylinder and Carry out n equal divisions in the circumferential direction; determine that the equal division point corresponds to the position on the line segment AB; then correspond the corresponding position to the horizontal central axis; pass the corresponding position on the horizontal central axis to make a straight line parallel to the line segment CD; parallel to the line segment The straight lines of CD intersect with the horizontal bisector respectively, and the intersection points are connected smoothly in sequence to obtain the horizontal contour line of the side thrust grille; S4, the horizontal contour line is expanded to obtain the unfolded contour line.

Description

technical field [0001] The invention relates to the technical field of ship side thrusters, in particular to a method for setting out a side thruster grid. Background technique [0002] In shipbuilding, in order to improve the maneuverability of the ship, especially for ships with high requirements for hull control, such as engineering ships, ferries, etc., side thrusters are usually installed below the waterline at the bow or stern to achieve precise control. Hull position. The side thruster is generally installed in the cylinder that runs through the hull in the transverse direction, and the ports on both sides of the cylinder are provided with deflectors that are transitionally connected with the shape of the outer plate of the hull. In order to prevent foreign matter from entering the cylinder and affecting the drainage of the side thruster, It is necessary to set up corresponding side thrust grilles to block foreign matter. [0003] For example, the Chinese invention ...

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Problems solved by technology

[0005] In order to solve the above problems, the object of the present invention is to provide a method for making stakeout of the side thrust grid, to solve the problem that the side thrust grid is horizontally inclined and vertically inclined in space, and the method of the prior art cannot be directly staked out. Problems making side pusher grills

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