A positioning control method for the shaft and rudder system segmented loading of a ship with two propellers and two rudders

Abstract

The invention relates to a segmented positioning control method for the rudder system of a ship with two propellers and two rudders. The method associates the dual shaft system and the dual rudder system in segments through the drawing of the "six points and seven lines" grid line, and each The bar shaft rudder system is independently positioned according to the ground sample line, the front and rear positioning lines on the main engine base of the subsection, the shaft system center line on the subsection and the ground, the ground projection point of the shaft hole center at the end of the shaft tube, and the ground projection point of the rudder hole center , the above dots are connected to form a "six point seven line" grid line. The method of the present invention aims at the characteristic that the control accuracy of the shaft and rudder system of a ship with two propellers and two rudders is high, and discloses a "six points and seven lines" control method for the shaft and rudder system, so that the dual shaft and double rudder systems The alignment is more intuitive and faster during segmented loading and positioning, and it is more convenient for continuous tracking and control during the welding process, thereby ensuring the positioning accuracy and efficiency of the shaft and rudder system.

Description

technical field [0001] The method of the invention belongs to the technical field of ship building, and in particular relates to the rapid and accurate positioning of a shaft and rudder system segmented in the hull construction process of a ship with two propellers and two rudders. Background technique [0002] In the process of ship hull loading and construction, the segmented loading of the shaft and rudder system is the most stringent part of the ship's loading accuracy. It is the basis for ensuring the smooth implementation of the shaft and rudder system cable lighting, and it is also the basis for whether the power output of the final ship sailing process can meet the design requirements. An important cornerstone of specification requirements. Especially for ships with double propellers and double rudders, the positioning parameters of the dual-shaft and double-rudder systems are related to each other. normal output. [0003] At present, the high-precision loading req...

AI Technical Summary

Problems solved by technology

[0003] At present, the high-precision loading requirements of the shaft and rudder system for ships with double propellers and double rudders: First, the loading and positioning are all carried out by experienced masters with outstanding personal skills, relying on personal work skills and work experience, skills Inheritance is also "hands-on" on-site demonstration guidance, and it is impossible to form a unified standard system process for on-site intuitive guidance operations

Second, in order to ensure that the positioning parameters carried by the two shaft rudder systems are uniformly correlated, during the actual positioning process on site, the instrument measurement needs to be repeatedly moved to the left and right sides for measurement and monitoring, while in the engine room area, the internal environment is complicated, and the cross-dimensional operation There are many, which pose a great potential hidden danger to the accuracy of measurement, the safety of measurement and positioning personnel, and the safety of instruments and equipment.

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