KR20120021809A - Ship hull welding shrinkage margin design automatiom method - Google Patents

Abstract

PURPOSE: A ship member margin design automation method is provided to reduce design errors by automatically inputting welding contraction values. CONSTITUTION: A design standard margin input data is inputted to a rule format screen(S20). The margin input data is stored in a database server(S30). A floor plan related to a welding contraction value and a margin is transmitted to a design apparatus(S40). The welding contraction value and the margin are automatically reflected to a CAD(Computer Aided Design) program for a ship design(S50). The data reflected by the welding contraction value and the margin is extracted from the database server(S60). A model panel reflected by the welding contraction value and the margin is searched in the CAD program. The data extracted from an oracle database is matched with the panel reflected by the welding contraction value and the margin(S80).

Description

SHIP HULL WELDING SHRINKAGE MARGIN DESIGN AUTOMATIOM METHOD}

The present invention relates to a method for applying a weld shrinkage margin, assembly, and mounting margin to abacus and various durable materials, longitudinal parts, and stiffeners constituting a ship's structure, and more specifically, a number of operations in the design and manufacturing process of the ship. When the steel plate is welded as a process of manufacturing, shrinkage caused by welding heat occurs and the member length becomes shorter than the normal length. In the present invention, the shortened length change is predicted. If you save the data file in the data store according to the rules set by the design model panels and calculate the pre-compensated design value and run the program applied to the present invention, several dozens of hundreds of design model panels and Weld Shrink margin and various margin data automatically in Scheme Member of vessel capacity and margin for the save operation to occur relates to design automation methods.

The structure of the ship is composed of a variety of members, such structures are designed to cut and assemble the steel sheet, section steel, etc. for the vessel in the designed form. At this time, in the dry assembly process of the vessel to select the welding method of various methods to join the structure. When welding of the joint between the member and the member is performed, residual stress is generated according to the structure characteristics of the iron, and the length of the iron plate or the member is contracted, which causes the phenomenon of becoming smaller than the normal design length. In particular, the design and manufacturing process of the ship goes through a number of work processes, one of the manufacturing process of welding the steel plate occurs a shrinkage phenomenon caused by the heat of welding occurs a phenomenon that the length of the member is shorter than the normal length. In the assembly process of ships, there is a procedure to assign margin or margin for quality control to the abacus and various durable materials for the purpose of quality control and quality maintenance management. In this design step, the members are designed to be large or small in advance in the design stage. Conventionally, there is no situation in which manual copying of data for each design model panel is performed by hand while looking at hard-shrinked weld shrinkage and margin design drawings without any related technology. Therefore, the cause of increase of M / H (Man Hour) input and quality deterioration due to manual error of designer is always inherent, and rework caused by design error causes loss of raw materials and quality control. Difficulties, such as the need for groundbreaking improvement.

That is, in the related art, the designer generates a model using a CAD system exclusively designed for ship design, that is, a tri-bone CAD system-> weld shrinkage margin drawing Dokdo-> input of dispersion increase calculation-> input of calculation of margin amount-> input of X, Y, Z direction designation -> Scheme run-> Panel creation-> Panel and scheme data generation and storage process will go through. The above-described tribone is a shipbuilding design program.

Therefore, the design process is dependent on manual work, which increases design M / H and depends only on the designer's judgment, manual ability, and working method. This has often led to rework, loss of additional inputs and complaints from the owner.

In other words, the internal member structure of the ship has a variety of features such as thickness, material, size, etc., and the assembly of the various members and members to make one assembly. Combination of various members is performed by temporary welding (continuously connecting before welding) and welding. However, due to the characteristics of the iron component, deformation due to heat occurs and in order to prevent this, the margin design for welding shrinkage and quality control is considered in consideration of the thickness of the steel sheet and the number of arrangement of members. The design process is to create data manually and create a file called a scheme and model-specific panels through it.

At this time, human error such as missing data reflection and input error is often generated during the designer's manual process. This leads to poor length and shortage in the block assembly process, causing quality problems, causing field modifications and rework, and causing design productivity degradation.

Looking specifically at the flow of the prior art weld shrinkage value and various margin design reflection procedures, first create the weld shrinkage value and margin design drawing in the production technology, and when you send to the relevant team, hard copy in the copy room, Distribute to drawing manager. In the structural modeling phase, the CAD system for ship design is operated, the modeling of the hull design structure is generated, the panel and scheme data as modeling results are generated, and the weld shrinkage margin and various margins are manually input to the model data panel. Perform Scheme Data Display Run, generate New Panel data with weld shrinkage and margins entered, designer save data using CAD menus, view model views (View) is created to produce the production design drawing, the design process for producing the part with the production design drawing is carried out to create the member, the production of assembly and block assembly is started.

As a result, additional M / H and additional raw materials can be lost when correcting and reworking design errors.

SUMMARY OF THE INVENTION The present invention has been made under the above-mentioned background, and uses a computer hardware and software to automate a method of reflecting various margins through a program command or computer operation for providing welding shrinkage margins and various durable material margins. By creating design reference data given to the program-driven function and storing it in an enterprise-wide Oracle database, and running the program based on this stored data, weld shrinkage margins and various margins can be added to multiple modeling schemes and panel data at once. The data is stored in the data store according to a set rule, and when the designer executes the following work process, the designed part automatically increases or decreases the length of the designed part according to the amount of margin reflected. Out Put Information to provide a margin design automation system that can do it automatically calculated has its purpose.

According to an embodiment of the present invention to achieve the above object, the present invention, weld shrinkage to various durable materials including abacus, longage, stiffeners forming a ship structure in the in-house area of the CAD system and other CAD system for ship design And a method of automating a member margin design of a ship which automatically reflects a margin to a design modeling panel and scheme data.

Creating design reference margin input data and inputting the created margin input data to a predetermined rule format screen;

The created margin input data is stored in an enterprise Oracle database server, and a diagram of the weld shrinkage value and the margin is transmitted to a related device;

Driving a CAD program for a ship design so that the weld shrinkage value and margin are automatically reflected;

Extracting data reflecting the design weld shrinkage value and margin from the enterprise Oracle database server, and searching for a model panel reflecting the weld shrinkage value and margin in the CAD program for ship design;

Matching data extracted from the transcriptional Oracle database with a panel reflecting the weld shrinkage value and margin;

Inserting the matched data into the scheme data file (INCLUDE) to generate the matched panel; And

And a verification screen is displayed that reflects the weld shrinkage value and the margin, and the matched data is finally stored.

According to another embodiment of the present invention, the present invention, the design modeling panel for welding contraction teeth and margins to a variety of durable materials including abacus, longage, stiffeners forming the ship structure in the in-house area of the CAD system and other CAD system for ship design And a method of automating a member margin design of a ship which is automatically reflected in scheme data.

A welding shrinkage value and a margin design are performed by the CAD program dedicated to the ship design as a production technology drawing step;

Transmitting the designed data to an associated device;

Inspecting the data including the drawings by a CAD program dedicated to ship designing;

A margin input source data is created and stored in the enterprise Oracle database server;

A ship design CAD system is driven to model the ship structure and is modeled as the ship structure, and is interfaced to the enterprise Oracle database server to search and extract margin input data for each ship block;

Welding shrinkage margins and various durable margins are matched to the hull model panel, and the matched data is inserted into the panel and scheme data;

Interfacing to a ship design-only CAD database system and generating a panel and then storing the panel in a ship design-only CAD system database and generating a production drawing view; And

After the drawing is created, a member is generated in which the margin compensation is reflected, and the member generating process is terminated, and the on-site assembly block assembly is performed.

According to the method of the present invention, by automating the design area that has been manually made by the design member, the welding shrinkage value and the margin input design are automated, and the design time saving effect is very large, and the design error generated during the manual process of the designer is reduced. The production quality is greatly improved, and the more accurate design reduces the rework loss, thereby increasing the use of additional raw materials used during rework, and also improving the reliability of the ship owner / class by improving the design quality. Significant effects can be obtained to satisfy on-site customers in the post process.

1 shows a flowchart of a method for automating member margin design of a vessel of an embodiment of the invention.
Figure 2 is an understanding of the application of weld shrinkage and margin to which the subject matter of the present invention is applied.
Figure 3 is a block diagram showing the flow of a method of automating member margin design of a ship of another embodiment of the present invention.
4 is a flowchart showing the 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 management system main screen.
6 is a diagram of a main screen in which driving of the present invention is started.
7 is a result screen of bringing out a panel modeled by a designer.
FIG. 8 is a screen illustrating welding and matching weld shrinkage and margin reflecting panels and calculating shrinkage.
FIG. 9 is a diagram for bringing up a modeled panel list to match shrinkage information and provide a preview function.
10 is a screen illustrating an original scheme SCHEME.
11 is a screen illustrating a changed scheme.
12 is a screen showing only a scheme line to be changed in a short mode.
FIG. 13 is a screen for highlighting a corresponding line in a process of confirming a changed scheme content. FIG.
14 is a screen illustrating which direction the actual reflection result is applied to.
15 is a screen showing a combination of margin reflection result values for each hull member number.
16 is a dialog screen showing comparative analysis before and after applying shrinkage values.
17 is a screen of a specific panel selection and scheme modification mode.

Hereinafter, a member margin design automation system 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 parts are designated by the same and similar reference numerals throughout the drawings.

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

There are several types of welded joints, such as butt joints, fillet joints, overlap joints, and the like. In shipyards, the hull structure is assembled by welding the joints between the members and the members.In the case of welding the base metal and the base metal, the welding heat input (heat amount given from the outside of the welding part) is mainly related to the cold temperature in the air. Residual stress is generated as it cools. At this time, the length of the member is contracted due to the residual stress generated, and the design of compensation by predicting and considering such deformation is defined in the shipyard as weld shrinkage value or weld shrinkage margin or dispersion increase. In the drawings and the same meaning will be used.

In addition, the abacus margin is expected to be shorter than the designed length due to various inadequate causes of assembly or block assembly, and the amount of compensation in terms of the quality control in terms of shipyard experience and the welding joint of the BUTT part The amount of compensation for the occurrence of secondary shrinkage, and the margin to compensate for the welding shrinkage value and to compensate the main plate constituting the assembly unit, the degree to which the margin is applied to measure the assembly or block Residual compensation margins beyond the normal length may be cut to fit, or the contraction may be lost due to shrinkage to fit the regular length. Abacus margins include migratory margins.

1 shows a flowchart of a method for automating member margin design of a vessel of an embodiment of the invention. In the method of the present invention, a tribone system, which is a CAD system for ship design, is used, and an enterprise Oracle database system is used. This embodiment shows the flow from a system, i.e., 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 a company-wide Oracle database server, and a drawing about the weld shrinkage value and margin is prepared and released to the corresponding department (S30, 40). Then, the tribone is driven to automatically reflect the weld shrinkage value and the margin (S50).

Extract the data reflecting the design weld shrinkage and margin from the enterprise Oracle database server (S60), and search the model panel (Model) reflecting the weld shrinkage and margin from the tribone (S70). . Match the data extracted from the transcriptional Oracle database and the panel reflecting the weld shrinkage value and margin (S80), insert the matched data into the scheme data file (INCLUDE), and match the panel ) To generate (S90). Subsequently, the result of reflecting the welding shrinkage value and the margin is displayed by displaying a verification screen (S100), and finally storing the matched data (S110). According to the above embodiment, the member margin design of the ship can be automatically reflected using hardware and software.

Figure 2 is an understanding of the application of weld shrinkage and margin to which the present invention is applied.

In the figure, 900 is an abacus and 910 is a Longi / stiffener. As can be seen from the figure, in the case of the main plate 900 is 1.0mm is applied to the length to increase the member than the normal length in consideration of the welding shrinkage is called "dispersed stretch", and the section to which the increased length compensation amount is applied is opposite to the dispersion stretch to be. In the cross section A-A of FIG. 2, in the case of the longage / stiffener, there is a portion 911 in which shrinkage occurs due to welding heat generation.

Figure 3 is a block diagram showing the flow of a method of automating member margin design of a ship of another embodiment of the present invention.

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

Next, a method of designing a member margin of a ship according to another embodiment of the present invention will be described with reference to the drawings.

First, the production contraction drawing and the welding shrinkage and margin design (S310). Then, as shown in the prior art, the relevant team is released (S320), the hard copy in the copy room to distribute to the drawing personnel of the project execution team (S330). In operation S340, the drawing person inspects the drawing. Subsequently, the first operation of step S360 of creating margin input source data and storing the margin input source data in the enterprise Oracle database 10 is performed. Next, the tribone CAD system is driven to model the ship structure (S370). Modeling the hull structure (S380) and interfaces to the enterprise Oracle database 10 performs a step of searching the margin input data (line) for each ship block (S390). Subsequently, the weld shrinkage margin and various durable margins are matched to the hull model panel (S400). Inserting the matched data into the panel and scheme data (S410), and then interfacing to the tribone CAD database system 20 (S420) to generate a panel and then generating the tribone system 20 Save to the database of (S430), create a production drawing view (View), create a drawing (S440) and then create a member reflecting the margin compensation and terminate the part creation process (S450), 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 showing the flow of a method for automating member margin design of a ship according to another embodiment of the present invention.

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

First, enter the CAD modeling screen (S610), complete modeling for each hull structure panel (S620), interface to the enterprise Oracle database (S630), and check whether there is weld shrinkage value and margin reflection data for each line block. In operation S640, the contraction reflection model panel, which is a next step, is searched in the database (S680), and the model panel to which the contraction value is to be reflected from the data extracted from the database is matched (S690). The display proceeds to the display screen (S700).

On the other hand, if there is no margin reflection data in step S640 to check whether there is a weld shrinkage value and durable material margin reflection for each line block (S650), if there is a missing production technology shrinkage margin source data input and Request for correction (S660), after the welding shrinkage input data creation and database storage in the production technology (S670) step back to step S630 and proceeds to the following steps. If there is a missing reference data input in step S650, the program ends.

The reflection result is verified through the reflection result verification display screen in step S700 (S700), and whether the verification result is abnormal is checked (S710). If the error is corrected (S720), the final panel and scheme (Scheme) file data storage (S730). If the error is not corrected in 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, a variety of durable margin input panels and schemes, including compensation design margins and abacus for weld shrinkage, can be automatically executed to create easy, fast and accurate design members.

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

5 is a main screen for the quality control welding shrinkage value management system, which is a screen for creating and inputting data in the quality control welding shrinkage value and margin management system I database. Store in

Examples of how to input source data, modeling panels, and scheme data

DK → DK1A or DK ＊

FR1A → FR1A or FR ＊

LB1A → LB1A or LB ＊

TB1A → TB1A or TB ＊

There are SR2A → SR2A or SR *, and the unit of assembly used in shipyard is defined.

FIG. 6 is a diagram illustrating a main screen in which driving of the present invention is started. When the welding shrinkage reflecting menu configured on the CAD screen is clicked, an initial screen as shown in FIG. 6 appears.

FIG. 7 is a result screen of bringing up a panel modeled by a designer. Click a block number to select a block to be worked on by each designer, and select Import a panel in a block to bring an assembly panel corresponding to a tree as shown in FIG. 7. .

FIG. 8 is a screen showing weld shrinkage and margin reflecting panels searched and matched and calculating shrinkage values. The results are reflected when the designer searches the weld shrinkage margin reflecting panel for a selected block and clicks a shrinkage calculation button. The screen shows the situation reflected as shown on the right. In the figure, the circle mark indicates the direction of the member in which the margin is reflected with respect to the member with margin, and the designer can visually identify whether the direction in which the margin is applied is correct.

FIG. 9 is a diagram for bringing up a modeled panel list to match shrinkage information and provide a preview function.

9 shows a panel list retrieval-shrink information preview function. This simple mode of viewing in the panel tree provides a preview of shrinkage and excess margin values to be applied with a mouse click.

That is, as shown below in the figure

Shrink margin M, panel excess margin 2mm, longage excess margin 4mm can be previewed.

The three modes of identifying the changed scheme after reflecting weld shrinkage and margins in the hull design model data are described below.

10 is a screen showing the original scheme (SCHEME), showing the original scheme content before the weld shrinkage and margin reflection, Figure 11 is a screen showing the changed scheme, the scheme content to be changed after the reflection of the weld shrinkage and margins 12 is a screen showing only a scheme line to be changed in a short mode, and shows only shrink values and margin data to be automatically inserted into the original scheme file as a short mode as the content of the scheme to be changed.

FIG. 13 is a screen for highlighting a corresponding line in a process of confirming changed scheme contents and shows a changed scheme contents confirmation STI list.

Designers can easily check this by highlighting the corresponding line in the scheme file when selecting the STI corresponding to the grid window. Express the change in a different color. The information according to the selected block is STINo. Type, Length, and Exc information are included. Exc extraction according to the end position is indicated by adding new contents in red and existing contents extraction in blue.

FIG. 14 is a screen illustrating which direction the margin reflection result is applied to the actual member, and confirms the changed scheme contents and the STI in the drawing.

All STIs in the drawing. Exc position can be confirmed and displayed by unique part number assigned by member in the modeling stage.

The circled notation in the direction in which the margin is reflected makes it easy for the designer to visually identify identification.

15 is a screen showing a combination of the margin reflection result value for each hull member number,

You can check the contents of the changed scheme, that is, Longi. Check Exc information and list the STI information of the original scheme. That is, it shows the margin amount reflected together with the part number and material size information.

For the selected block, the STI No. Type, Length, and Exc information can be checked. Red color is applied to STI to which Exc margin will be applied. From the lower figure of FIG. 15, the excess value preview to be changed is shown. The excess value of the original scheme and the value to be applied are shown.

FIG. 16 is a dialog screen showing comparative analysis before and after applying a shrinkage value, and selects a panel to be applied from among calculated panels. In FIG. 16, three represent panels to which the shrinkage value is applied, and one represents a panel to which the shrinkage value has already been applied.

In addition, panels with contracted values are excluded from the system by searching.

17 is a screen for selecting a specific panel and a scheme modification mode. When a scheme to be modified is selected, a button for executing a run is activated when a scheme is changed, and a user may directly input and modify contents to be changed and store data.

According to the method of the present invention described so far, by automating the design area that has been manually made by the design member, the welding shrinkage value and the margin input design are automated, and the design time saving effect is very large, and the design error occurred during the manual process of the designer. Reduced rework loss due to greater product quality improvement and more accurate design, which can reduce the use of additional raw materials used during rework, and increase the reliability of the ship owner / classifier through the design quality improvement effect. Along with the improvement, a remarkable effect can be obtained to satisfy the field customer in the post-process.

So far, the member margin design automation system of the ship according to an embodiment of the present invention has been described with reference to the drawings, the present invention is not limited to this and those skilled in the art without departing from the spirit and scope of the appended claims below And various modifications and changes can be made, and such changes and modifications will be construed as being within the scope of the present invention.

10: Oracle database server system
20: TRIBON CAD system
900: Abacus
910: LONGI / STIFFNER

Claims (6)

By using computer hardware such as CAD system exclusively for ship design and software applied to it, each model of design model has a value calculated to compensate for welding shrinkage margin reflected in abacus and various durable materials, longage, and stiffeners that form the structure of ship A method of automating a ship's member margin design by storing data files in a data store in accordance with established rules and comparing and matching with shrinkage reflecting panels. Ship member margins that automatically reflect weld shrinkage and margins to design modeling panels and scheme data in various durable materials including abacus, longage, and stiffeners that form ship structures in the in-house area of CAD systems for ship design and other CAD systems As a design automation method,
Creating design reference margin input data and inputting the created margin input data to a predetermined rule format screen;
The created margin input data is stored in an enterprise Oracle database server, and a diagram of the weld shrinkage value and the margin is transmitted to a related device;
Driving a CAD program for a ship design so that the weld shrinkage value and margin are automatically reflected;
Extracting data reflecting the design weld shrinkage value and margin from the enterprise Oracle database server, and searching for a model panel reflecting the weld shrinkage value and margin in the CAD program for ship design;
Matching data extracted from the transcriptional Oracle database with a panel reflecting the weld shrinkage value and margin;
Inserting the matched data into the scheme data file (INCLUDE) to generate the matched panel; And
And a verification screen displaying the result of reflecting the welding shrinkage value and the margin, and finally storing the matched data. Ship member margins that automatically reflect weld shrinkage and margins to design modeling panels and scheme data in various durable materials including abacus, longage, and stiffeners that form ship structures in the in-house area of CAD systems for ship design and other CAD systems As a design automation method,
A welding shrinkage value and a margin design are performed by the CAD program dedicated to the ship design as a production technology drawing step;
Transmitting the designed data to an associated device;
Inspecting the data including the drawings by a CAD program dedicated to ship designing;
A margin input source data is created and stored in the enterprise Oracle database server;
A ship design CAD system is driven by the ship design model for hull structure modeling, and is interfaced to a company-wide Oracle database server to search and extract margin input data for each ship block;
Welding shrinkage margins and various durable margins are matched to the hull model panel, and the matched data is inserted into the panel and scheme data;
Interfacing to a ship designation CAD database system and generating a panel and storing the panel in the ship designation CAD database and generating a production drawing view; And
A method of automating the member margin design of a ship comprising the steps of generating a member after the drawing is made and reflecting the margin compensation, ending the member generating process, and assembling an on-site assembly block. Ship member margins that automatically reflect weld shrinkage and margins to design modeling panels and scheme data in various durable materials including abacus, longage, and stiffeners that form ship structures in the in-house area of CAD systems for ship design and other CAD systems As a design automation method,
Displaying the CAD system modeling screen for the ship design, and completing modeling for each hull structure panel;
Interface to an enterprise Oracle database to determine whether there is weld shrinkage value and margin reflection data for each line block;
A contraction value reflection model panel being searched in the database to match the data extracted from the database and a model panel to which the contraction value is reflected, and then displaying a verification display screen of the matched reflection result;
Verifying the reflection result through the reflection result verification display screen; And
Method for automatically reflecting the absence margin design of the ship, characterized in that it is confirmed whether there is an abnormality and if there is an error, the cause of the error is corrected, and the final panel and scheme file data storage is performed. The method of claim 4,
In the step of checking whether the welding shrinkage value and the durable material margin are reflected by the line block, if there is no margin reflection data, input missing of the reference data is confirmed, and if there is a missing input of the reference data, input and correction request for production technology shrinkage margin source data is requested. Method for automatically reflecting the member margin design of the ship, characterized in that returning to the step. The method of claim 4,
If the error is not corrected in the error correction step, the method of automatically reflecting the absence margin design of the ship, characterized in that the return to the production technology shrinkage margin source data input and correction request step.

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