Calculating method for compensation quantities of hull segments

Abstract

The invention relates to a calculating method for the compensation quantities of hull segments. The calculating method comprises the following steps that the maximum positive value E of the main dimension standard tolerance of a hull is obtained and distributed to all parts of the hull; the maximum positive value of the main dimension standard tolerance of all the parts of the hull is obtained; the maximum positive value of the main dimension standard tolerance of all the parts of the hull is decomposed to the segments of all the parts of the hull, and the standard tolerance maximum positive values of the segments of all the parts of the hull are determined; difference values of the closure opening welding clearance and welding shrinkage allowance of the segments of all the parts of the hull are calculated; the difference values of the closure opening welding clearance and welding shrinkage allowance of all the parts of the hull are compared with the standard tolerance maximum positivevalues of the segments of all the parts of the hull, and the compensation quantities of the segments of all the parts of the hull are determined according to the comparing result. According to the calculating method for the compensation quantities of the hull segments, through the requirement for combining the main dimension standard tolerance of the hull with the functional clearance set out according to the performance requirements of a ship, the increased compensation quantities during segmented manufacturing are determined by calculation, the hull manufacturing precision is improved, andmaterial waste is avoided.

Description

Technical field [0001] The invention is designed in the field of shipbuilding, and specifically relates to a method for calculating the compensation amount of the hull section. Background technique [0002] In the process of shipbuilding, due to the large volume of the hull, the hull is usually divided into several sections, which are manufactured in units of hull sections, and then the various hull sections are assembled to complete the manufacture of the hull. Since the hull is manufactured in sections, and the sections are usually connected by welding, the welding connection usually results in welding deformation, and each hull section will produce various errors in the manufacturing process. Due to the above reasons, at present, after the completion of the segmented manufacturing and the assembly of the hull, repairing and secondary positioning are often required, resulting in an extension of the manufacturing cycle and waste of materials, and the accuracy of the manufactured...

AI Technical Summary

Problems solved by technology

Since the hull is manufactured in sections, and the sections are usually connected by welding, the welding connection usually leads to welding deformation, and each hull section will produce various errors in the manufacturing process

Due to the above reasons, at present, trimming and secondary positioning are often required when the hull is assembled after the completion of segmented manufacturing, resulting in prolongation of the manufacturing cycle and waste of materials, and the accuracy of the manufactured hull may not meet the standard requirements

[0003] In view of the above technical problems, it is usually necessary to add a certain amount of compensation to the hull section when the hull is manufactured in sections. The current addition of compensation is mainly based on the actual experience method. The first ship is often added according to this method, which is often conservative. As a result, the amount of trimming is large, and subsequent ships need to continuously optimize the value

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