KR20220100286A - Automation of vessel absentee margin design - Google Patents

Abstract

The present invention relates to a method for applying welding shrinkage margins and assembly and mounting margins to main plates, various durable materials, longies, and stiffeners constituting the structure of a ship. The method includes the steps of: inputting prepared margin input data to a predetermined rule format screen; transmitting the design of the welding shrinkage and margin to a related device; driving a CAD program dedicated to the ship design; searching the model panel in which the welding shrinkage value and margin are reflected in the CAD program for the ship design; matching the data extracted from the transcriptional Oracle database with the panel reflecting the welding shrinkage value and margin; generating the matched panel by inserting the matched data into the scheme data file; and finally storing the matched data.

Description

Automation method of vessel absentee margin design

The present invention relates to a method of applying a welding shrinkage margin, assembly, and mounting margin to an abacus and various durable materials, longitudinal parts, and stiffeners constituting the structure of a ship. Among them, when an iron plate is welded as one of the manufacturing processes, the shrinkage caused by the welding heat occurs and the member length becomes shorter than the regular length. When the data file is stored in the data storage according to the rules set one by one for each design model panel with the calculated value calculated in advance and the program applied to the present invention is run, several tens of hundreds of design model panels and It relates to a method for automating member margin design of a ship so that welding shrinkage margin and various margin data are automatically input and stored in a scheme.

The structure of the ship is composed of various members, and these structures are cut and assembled in a designed shape, such as steel plates and sections for ships. In this case, various welding methods are selected in the process of building and assembling a ship to join the structures. When the welding operation of the joint between the member and the member is performed, residual stress is generated according to the structural characteristics of the iron and the length of the steel plate or member is contracted, resulting in a phenomenon that becomes smaller than the normal design length. In particular, the design and manufacturing process of ships There are a number of work processes, and among them, when a steel plate is welded as a process of manufacturing, the shrinkage caused by the heat of welding occurs and the member length becomes shorter than the normal length. Also, in the ship assembly process, for the purpose of quality control and quality maintenance, there is a procedure to give an allowance for quality control or a negative margin to the abacus and various durable materials. It is to design the member to be large or small in advance at the design stage by such an excess or deficiency value. In the prior art, without any special technology related thereto, the data is manually created by keying in data for each design model panel while looking at the hard-copy welding shrinkage value and margin design drawings. Therefore, the cause of quality deterioration due to the increase in the input of man-hours (M/H (ManHour)) and the designer's manual error is always inherent. It is a situation in need of drastic improvement as there are difficulties.

The present invention has been devised under the above background, and by using computer hardware and software, it automates a method of reflecting various margins through program commands or computer operation for granting welding shrinkage margins and various durable material margins, and using this method If the design reference data given in the program driving function is created and stored in the company-wide Oracle Data Base, and the program is run based on the stored data, the welding shrinkage margin and various margins are displayed on several modeling schemes and panel data at once. It is reflected and automatically entered, the data file is saved in the data storage according to the set rules, and when the designer executes the subsequent work process, the length of the designed member is automatically increased or decreased according to the amount reflected by the margin. It aims to provide a margin design automation system that can automatically calculate output information.

In order to achieve the above object, according to an embodiment of the present invention, the present invention provides welding shrinkage teeth on various durable materials including abacus, lunge, and stiffener constituting the ship structure in the in-house area of the CAD system for ship design and other CAD stems. and automatically reflecting the margin on a design modeling panel and scheme data, comprising: creating design reference margin input data and inputting the created margin input data to a predetermined rule format screen;

storing the created margin input data in a transcription Oracle database server, and transmitting a drawing of the weld shrinkage value and margin to a related device;

driving a CAD program dedicated to ship design so that the welding shrinkage value and margin are automatically reflected;

The data in which the design welding shrinkage value and margin are reflected is extracted from the enterprise Oracle database server, and the model panel (Model Panel) in which the welding shrinkage value and margin are reflected is searched in the ship design-only CAD program;

matching the data extracted from the enterprise Oracle database with the panel reflecting the welding shrinkage value and margin;

inserting the matched data into the scheme data file (INCLUDE) to generate the matched panel; and

* A result verification screen reflecting the welding shrinkage value and margin is displayed, and the matched data is finally stored.

According to the method of the present invention, the design time reduction effect is very large by automating the welding shrinkage value and the margin input design by automating the design area that was previously manually performed by the designer, and the design errors that occurred during the designer's manual process are reduced. The effect of improving the quality of product production is great, and the more accurate design reduces work loss, which can increase the effect of reducing the use of additional raw materials during rework. In the process, a remarkable effect can be obtained to satisfy the field customer.

1 shows a flowchart of a method for automating member margin design of a vessel according to an embodiment of the present invention.
2 is an understanding diagram of welding shrinkage value and margin application to which the contents of the present invention are applied.
3 is a block diagram illustrating a flow of a method for automating member margin design of a ship according to another embodiment of the present invention.
4 is a flowchart illustrating a flow of a method for automating member margin design of a ship according to another embodiment of the present invention.
5 is a quality control welding shrinkage value management system main screen.

Hereinafter, an automated system for designing a member margin of a ship according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same and similar reference numerals are assigned to the same and similar parts throughout the drawings.

Before the detailed description with reference to the drawings, the terms used in the present invention will be first described.

There are several types of welded joints, such as butt joints, fillet joints, lap joints, and the like. In the shipyard, the hull structure is assembled using the welding joint method of members and members. When welding the base material and the base material, the welding heat input (the amount of heat given from the outside of the weld) is the same as the cold temperature in the atmosphere, centering on the area where the welding heat input is applied. As the mixture cools, residual stress is generated. At this time, a phenomenon occurs that the length of the member is contracted due to the residual stress generated at this time. Designing by predicting and considering such deformation in advance and compensating for it is defined in the shipyard as welding shrinkage value or weld shrinkage margin or dispersion increase, and the following specification and the same meaning in the drawings.

In addition, the abacus margin predicts that the member will be shorter than the designed regular length due to the occurrence of various nonconformities occurring during the assembly or block assembly process. It refers to the amount of compensation for the occurrence of minor shrinkage. It is a margin that compensates the welding shrinkage value together and compensates the main plate forming the assembly unit. Among the elements to which this margin is applied, accuracy is measured during block assembly or mounting In some cases, the margin of compensation margin outside the normal length may be cut or fit to the normal length due to the loss of the margin due to the occurrence of shrinkage.

1 shows a flowchart of a method for automating member margin design of a vessel according to an embodiment of the present invention. In the method of the present invention, the Tribone system, which is a CAD system dedicated to ship design, is used, and a company-wide Oracle database system is also used. This embodiment shows the flow from a system or hardware point of view.

First, design reference margin input data is created and the created margin input data is input to a predetermined rule format screen (S10, 20). The created margin input data is stored in the enterprise Oracle database server, and a drawing of the weld shrinkage value and margin is prepared and issued to the relevant department (S30, 40). Then, the tribone is driven to automatically reflect the welding shrinkage value and margin (S50).__ Data reflecting the design welding shrinkage value and margin is extracted from the enterprise Oracle database server (S60), and the welding shrinkage value and A model panel reflecting the margin is searched in the tri-bone (S70). Match the data extracted from the transcription Oracle database with the panel reflecting the welding shrinkage value and margin (S80), insert the matched data into the scheme data file (INCLUDE), and the matched panel (Panel) ) is generated (S90). Subsequently, a result verification screen reflecting the welding shrinkage value and margin is displayed (DISPLAY) (S100), and the matched data is finally stored (S110). According to the above embodiment, the member margin design of the ship can be automatically reflected using hardware and software.

2 is an understanding diagram of welding shrinkage value and margin application to which the contents of the present invention are applied.

In the drawing, 900 is an abacus, and 910 is a Longi/stiffener. As can be seen from the drawing, in the case of the abacus 900, 1.0 mm is applied as a length that lengthens the member more than the normal length in consideration of welding shrinkage, and 1.0 mm is applied as "dispersion increase", and the section to which the increased length compensation amount is applied is opposite to the dispersion increase. to be. In the cross-sectional view taken along line A-A of FIG. 2 , in the case of the longie/stiffener, there is a region 911 where shrinkage occurs due to the generation of welding heat.

3 is a block diagram illustrating a flow of a method for automating member margin design of a ship according to another embodiment of the present invention.

As shown in FIG. 3 , in the method of the present invention, the tribone system 20, which is a CAD system for ship design used in step S430, is used, and the enterprise Oracle database system 10 used in step S360 is used. This embodiment also shows the flow from the hardware point of view.

Then, a method for automating the design of a member margin of a ship according to another embodiment of the present invention will be described with reference to the drawings.

First, as the production technology drawing step, the welding shrinkage value and margin design are made (S310). Then, as in the prior art, the paper is issued to the relevant team (S320), and the hard copy is made in the copy room and distributed to the person in charge of the drawing of the corresponding project execution team (S330).

Then, the drawing person in charge examines the drawing in step S340. Next, the primary operation of creating the margin input source data (S350) and storing it in the Oracle database 10 (S360) is performed. Then, the tribone CAD system is driven for modeling the hull structure (S370). The hull structure modeling is performed (S380) and the interface to the enterprise Oracle database 10 is performed to search and extract the margin input data for each ship block (S390). Then, the hull model panel is matched with the welding shrinkage margin and various durable material margins (S400). Inserting the matched data into the panel and scheme data (S410), and then interfacing to the tribone CAD database system 20 (S420), generating the panel, and then the tribone system 20 ), create a production drawing view (S430), create a drawing (S440), create a member with the margin compensation reflected and end the member creation process (S450), and assemble the on-site assembly block Step S460 is performed. According to the above embodiment, the member margin design of the ship can be automatically reflected using hardware and software.

4 is a flowchart illustrating a flow of a method for automating member margin design of a vessel according to another embodiment of the present invention.

A method for automating member margin design of a ship according to another embodiment of the present invention will be described in detail with reference to FIG. 4 . This embodiment shows the flow from the viewpoint of program driving applied to the method of the present invention.

First, enter the CAD modeling screen (S610), complete the modeling for each hull structure panel (S620), access the enterprise Oracle database interface (S630), check whether there is welding shrinkage value and margin reflection data for each arc block, (S640), the next step, the model panel reflecting the shrinkage value, is searched in the database (S680), the data extracted from the database and the model panel to which the shrinkage value will be reflected are matched (S690), and then the matched reflection result is verified It goes to the display screen (S700).

On the other hand, if there is no margin reflection data in step S640 to check whether there is reflection of welding shrinkage value and durable goods margin for each arc line block, check the input omission of the reference data (S650), and if there is an omission, input the production technology shrinkage value margin source data and Request a correction (S660), and return to step S630 again through the steps of creating and storing the welding shrinkage value input data in the production technology (S670) and proceed with the following steps. If there is a reference data input omission in step S650, the program is terminated.

In the step S700, the reflection result is verified through the reflection result verification display screen (S700), and it is checked whether there is an abnormality in the verification result (S710). If there is an error, the cause of the error is corrected (S720), and the final panel and scheme file data are saved (S730). If the error is not corrected in the step S720, the process returns to the production technology shrinkage margin source data input and correction request step (S660) and performs the following steps. In this way, it is possible to create an easy, fast, and accurate design member by automatically generating various durable material margin input panels and schemes, including compensation design margins for weld shrinkage and abacus.

Hereinafter, computer screens implemented by the method of the present invention will be described as an example.

5 is a screen for creating and managing data in the quality control welding shrinkage value and margin management system I database as the main screen of the quality control welding shrinkage value management system, and by creating the welding shrinkage value and margin data for each arc block, the transcription Oracle database save to

As an example of how to match source data input, modeling panel, and scheme data

DK → DK1A or DK＊

FR1A → FR1A or FR*

LB1A → LB1A or LB＊

TB1A → TB1A or TB*

There is SR2A → SR2A or SR*, which defines and uses the unit of assembly used in the shipyard.

Claims (1)

By using computer hardware such as a CAD system for ship design and software applied to it, the calculated value is calculated to compensate for the welding shrinkage margin reflected in the abacus and various durable materials, longies, and stiffeners constituting the structure of the ship in advance for each design model panel. A method for automating the design of the margin of parts of a vessel by storing data files in a data repository according to established rules, comparing and matching against shrinkage-reflecting panels.

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