JP2012216209A - Cad control device, cad control system, control method for cad control system, and cad control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To encourage a reuse by displaying, intelligibly even for a designer in the future, trial-and-error design data including analysis results of CAD shape data that has been created by a designer in the past.SOLUTION: The CAD control device includes: a history shape storage section 104 for storing a plurality of pieces of CAD design data in a series of design processes and final-shape design data that is the result of the design; an analysis result storage section 101 for storing analytical results of each of the plurality of pieces of CAD design data in the series of the design processes and the final-shape design data; analysis result comparing/storing section 103 for comparing and storing the analyzed respective analysis results; difference shape extraction means 102 for comparing the final-shape design data with each of the plurality of pieces of CAD design data in the series of design processes and extracting difference shapes; a first output section 105 for outputting the plurality of extracted difference shapes in a state different from the final-shape design data; and an analysis result output section 106 for outputting the stored analysis result.

Description

  The present invention relates to a CAD control device, a CAD control system, a CAD control system control method, and a CAD control program.

  In designing using a CAD system, as the designer edits the design data, analysis result information (collision, strength, vibration, fluid, etc.) of the edited design data is calculated, and time history data, etc. Are stored in the sequential storage means. By using this time history data, the analysis data of the analysis result information at an arbitrary time can be accessed, and the design data at the time of the analysis data can be restored.

  In the prior art, there are the following three methods for accessing past analysis data. 1. 1. Access analysis data by referring to time history data (Patent Document 1); 2. Access by entering analysis contents in analysis data name A CAD system is disclosed in which, after describing a number or the like in analysis data, the analysis data is accessed and reconfirmed by transferring and accessing the number and analysis contents on a separate sheet.

JP 2007-299135 A

  However, even if analysis data is saved with such effort, in many cases, analysis data and design data in the middle of design are transient and often cannot be reused. There are two reasons for this. 1. Analysis data during design is often stored in each individual's PC or personal management folder. 2. The design data finally stored is only the final shape of the CAD design data, and it is often unclear why the final shape has been reached.

  Against this background, third-party designers who want to refer to past data are often not in a situation where past design data can be widely reused, and only the shape data that the next developer has completed by the previous developer can be used. If you don't know, there is a possibility that the next developer will go through the same trial and error process in the process of redesigning, and there is a possibility that it will be troublesome twice to go through the same trap without knowing the previous developer's trial and error process There is.

  The present invention has been made to solve the above problems, and an object of the present invention is to display trial and error design data including analysis results of CAD shape data in an easy-to-understand manner for the designer. .

  The present invention includes a history shape storage means for storing design data of a plurality of CADs in a series of design processes, design data of a final shape as a design result, and design data of a plurality of CADs in the series of design processes. Analysis result storage means for storing the results analyzed by the analysis means for analyzing each and the design data of the final shape, and analysis result comparison memory for comparing and storing the respective analysis results analyzed by the analysis result storage means Means, difference shape extraction means for comparing each of the design data of the final shape stored in the history shape storage means and a plurality of CAD design data in the series of design processes, and extracting a difference shape, and the difference shape A first output means for outputting a plurality of differential shapes extracted by the extraction means to the input / output means in a state different from the design data of the final shape; And having a analysis result output means for outputting the analysis result stored in said analysis result comparison storing means.

  According to the present invention, trial and error design data including an analysis result of CAD design data can be displayed in an easy-to-understand manner for a designer, and past design data can be easily reused.

It is a figure which shows the software structure of the CAD control apparatus in embodiment of this invention. It is a figure which shows the hardware constitutions of the various apparatuses in embodiment of this invention. It is a sequence chart which shows an example of the 1st control processing means in the embodiment of the present invention. It is a sequence chart which shows an example of the 2nd control processing means in the embodiment of the present invention. It is an example of the design data in the embodiment of the present invention. It is a figure which shows the version and difference shape of the design data which the user in embodiment of this invention produced. It is an example of the analysis result data of the shape displacement in the embodiment of the present invention. It is an example of the image of the report creation screen in the embodiment of the present invention. It is a figure explaining the extraction method of the difference shape in the embodiment of the present invention. It is an example of the image of the input screen of the report in embodiment of this invention. It is an example of the image of the report in embodiment of this invention. It is an example of the image of the design data search input screen in embodiment of this invention. It is an example of the image of the design data and analysis result display screen in the embodiment of the present invention. It is a figure explaining the memory map of the computer-readable recording medium (storage medium) which recorded the program for functioning a computer as the CAD control apparatus 100 which comprises the CAD control apparatus in embodiment of this invention. It is a sequence chart which shows an example of the 3rd control processing means in the embodiment of the present invention. It is an example of the design data in the embodiment of the present invention. It is an example of the image of the input screen of the change value of the dimension in embodiment of this invention.

<First Embodiment>
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram illustrating a software configuration of a CAD control apparatus according to an embodiment of the present invention.

In FIG. 1, reference numeral 100 denotes a CAD control device that accepts input of CAD design data from the user terminal 110, stores design data, design data analysis results, and the like, and stores the analysis results and stored in the user terminal 110. Send data to display design data.
The analysis device 120 receives design data from the CAD control device 100, calculates analysis result information such as strength and completed shape, and transmits it to the CAD control device 100.

  Note that the software configuration of the CAD control apparatus 100 is an example formed by a single information processing apparatus, and may be configured by a plurality of information processing apparatuses according to applications and purposes. In this embodiment, the analysis device 120 is configured separately from the CAD control device 100, but it goes without saying that the analysis device 120 may be configured from the same information processing device.

  The history shape storage unit 104 of the CAD control device 100 stores design data input at the user terminal 110. The analysis result storage unit 101 transmits the input design data to the analysis device 120, and stores the analysis result of the design data analyzed by the analysis device 120 for each design data. In addition, the analysis result comparison storage unit 103 stores the analysis results stored in the analysis result storage unit 101 by comparing each design data of the same group. In this embodiment, the design data in the same group is design data having a common part in shape data such as shape data created by deriving from one design data.

  The difference shape extraction unit 102 is configured to extract a portion having a different shape (difference shape) from the final shape determined by the user in the design data of the same group. The difference shape extraction unit 102 may create a difference shape every time a difference shape data request is received. The difference shape extraction unit 102 has a storage unit in the difference shape extraction unit, and stores the difference shape once extracted. However, when there is a request for difference shape data, the difference shape data may be read from the storage unit.

  The first output unit 105 is configured to output the final shape determined by the user to the user terminal 110 and simultaneously output the differential shape extracted by the differential shape extraction unit 102. As a method of displaying the difference shape, there are a method of displaying the difference shape by changing the color for each of the plurality of difference shapes, a method of displaying only the difference shapes side by side, and the like.

  The analysis result output unit 106 outputs the comparison information of the analysis results stored in the analysis result comparison storage unit 103 to the user terminal 110 as a table or graph so that the user can determine.

  The shape designation receiving unit 107 designates a difference shape to be noticed based on an operation position received by a user's mouse operation or the like from the user terminal 110. The design data having the designated difference shape is output to the user terminal 110 by the second output unit 108.

The input / output unit 111 of the user terminal 110 displays output data from the first output unit 105, the analysis result output unit 106, and the second output unit 108 of the CAD control apparatus 100 on the display of the user terminal 110. . Further, the input / output unit 111 receives a user input with a mouse, a keyboard, or the like, and designates the design data of the differential shape displayed on the display, whereby the designated differential shape is input to the shape designation reception unit 107. Send.
The analysis unit 121 of the analysis device 120 calculates analysis result information such as the strength and shape of the design data received from the CAD control device, and transmits it to the CAD control device 100.
Next, hardware configurations of various devices such as the CAD control device 100, the user terminal 110, and the analysis device 120 in FIG. 1 will be described with reference to FIG.
FIG. 2 is a diagram illustrating a hardware configuration of various apparatuses according to the embodiment of the present invention.
The CPU 201 comprehensively controls each device and controller connected to the system bus 204.

The ROM 202 or the external memory 211 has a BIOS (Basic) that is a control program for the CPU 201.
(Input / Output System), an operating system program (hereinafter referred to as OS), and various programs (to be described later) necessary for realizing the functions executed by each server or each PC are stored. The RAM 203 functions as a main memory, work area, and the like for the CPU 201.
The CPU 201 implements various operations by loading a program necessary for execution of processing into the RAM 203 and executing the program.
An input controller (input C) 205 controls input from a pointing device such as a keyboard 209 or a mouse (not shown).
A video controller (VC) 206 controls display on a display device such as the display 210. These are used by the user as needed.

  The memory controller (MC) 207 is a hard disk (HD), floppy (registered trademark) disk (FD), or PCMCIA that stores a boot program, browser software, various applications, font data, user files, editing files, various data, and the like. Controls access to an external memory 211 such as a CompactFlash (registered trademark) memory connected to the card slot via an adapter.

  A communication I / F controller (communication I / FC) 208 is connected to and communicates with an external device via a network, and executes communication control processing in the network. For example, Internet communication using TCP / IP is possible.

  Note that the CPU 201 enables display on the CRT 210 by executing outline font rasterization processing on a display information area in the RAM 203, for example. In addition, the CPU 201 enables a user instruction with a mouse cursor (not shown) on the CRT 210.

A CAD control program for realizing the present invention is recorded in the external memory 211 and is executed by the CPU 201 by being loaded into the RAM 203 as necessary. Further, shape data used by the CAD control program according to the present invention is stored in the external memory 211.
Hereinafter, the flow of the CAD control apparatus will be described with reference to the sequence charts of FIGS.

FIG. 3 is an example of a sequence chart showing a flow of design data input and report information input in the embodiment of the present invention, and S301 to S319 indicate steps in each information processing apparatus.
The sequence chart of FIG. 3 is started when a CAD application is activated by a user and design data is input.
In step S301, the user terminal 110 receives design data such as 501 in FIG.
FIG. 5 is an example of design data in the embodiment of the present invention.

  Reference numeral 501 in FIG. 5 denotes a design data shape designed by the user. The design data is a node number numbered at each vertex as in 502, and is surrounded by each vertex (in this case, a rectangular parallelepiped) 503. It is formed by the element number numbered in each region. Attribute information such as material of other design data to be designed is input.

The coordinate data 504 indicates the coordinate data of the node number of the design data designed by the user, and the node number data 505 indicates the node number data of the vertex of the area specified by the element number. Reference numeral 505 denotes a state where an area surrounded by the area between the node numbers 1 to 8 is registered as GROUP (1). Returning to the description of the sequence chart of FIG.
In step S <b> 302 of FIG. 3, the CAD control device 100 stores design data (design data 501) designed by the user in the history shape storage unit 104.
Next, the CAD control apparatus 100 transmits the design data 501 to the analysis apparatus 120 in step S303.

In step S304, the analysis apparatus 120 calculates the strength and shape displacement of the transmitted design data 501, and transmits the calculation result to the CAD control apparatus 100 in step S305. The shape displacement calculation result calculated by the analysis device 120 will be described later.
Next, in step S <b> 306, the CAD control apparatus 100 processes the analyzed result as data such as a graph or a table and transmits the processed data to the user terminal 110.

Next, in step S307, the user terminal 110 displays the analysis result transmitted from the CAD control apparatus 100 on the display 210 or the like and waits for the user's determination result. For example, an example of a shape such as design data 501 as an analysis result of the shape displacement calculation by the analysis device will be described with reference to 705 in FIG.
FIG. 7 is an example of analysis result data of shape displacement in the embodiment of the present invention.

  For example, 705 in FIG. 7 indicates a load on the line 704 when a load of 1 N (Newton) is applied to the position 703 when the position 702 is completely constrained with respect to design data having a shape like 701. It is an example which calculated the displacement of the direction. The horizontal axis 705 is the distance on the line 704 from the starting point, and the vertical axis is the value displaced in the load direction. The obtained analysis result such as 705 in FIG. 7 is displayed on the display 210 of the user terminal 110 and waits for the user's judgment. Returning to the description of the sequence chart of FIG.

  If the analysis result displayed in step S307 is a value within the range of shape displacement that can be accepted by the user, the process proceeds to step S315, but if the analysis result displayed in step S307 is within a range that the user cannot accept. If there is, the design will be restarted. In that case, the process proceeds to step S308.

  In step S308, the user terminal 110 receives design data having a shape such as 506 in FIG. At this time, the user inputs design data from the input / output unit 111 by changing the shape with reference to the design data created in step S301.

  The shape 506 in FIG. 5 is design data in which vertical ribs are set up on one side of a wide surface from the shape 501, and the design data is the node numbered at each vertex such as 507 like 502 and 503. It is formed by a number and an element number numbered in a region such as 508 surrounded by each vertex. Attribute information such as other materials of design data to be designed is also input from the input / output unit 111 of the user terminal 110.

  The node data 509 indicates the coordinate data of the node number of the design data designed by the user, and the element number data 510 indicates the node number data of the vertex of the area specified by the element number. From the node number data 510, the shape of 506 indicates that it is formed from an area specified by three element numbers. That is, the shape of 506 is an area surrounded by 1, 3, 6, 7, 5, 2, 4, 8 of GROUP (1), and 16, 14, 5, 7, 15, 13, 13, 1 of GROUP (2). , 8 and an area surrounded by GROUP (3) 8, 9, 12, 13, 16, 10, 11, 1 are formed. Returning to the description of the sequence chart of FIG.

  Next, in step S309 in FIG. 3, the CAD control device 100 further stores design data (design data 506) designed by the user in the history shape storage unit 104 as design data of the same group.

  Next, in step S310, the CAD control device 100 transmits design data 506 to the analysis device 120 in the same manner as in step S303. After transmitting the design data 506 to the analysis device 120, in steps S311 to S314, the analysis device 120, the CAD control device 100, and the user terminal 110 perform processing in the same manner as in steps S304 to S307, and the processing result is stored in the user terminal 110. This is displayed on the display 210. As the analysis result of the redesigned design data 506, the acquired analysis result such as 711 in FIG. 7 is displayed on the display 210 of the user terminal 110 and waits for the user's judgment.

  If the analysis result displayed in step S314 is within the range of the shape displacement that can be accepted by the user, the design data designed in step S308 is used as the final shape design data, and then the process proceeds to step S315. If the user cannot accept the analysis result displayed in step, the design is performed again. In this case, the process proceeds to step S308, and the redesign process in steps S308 to S314 is performed.

  After the process of steps S301 to S307 and several times of S308 to S314 are executed and the user has made trial and error, and the shape displacement value is such that the user can accept the analysis result, the design data is used to design the final shape. As data, the process proceeds to step S315. An example of data designed as a result of executing the processes of steps S301 to S307 and several times of S308 to S314 will be described with reference to FIG.

  FIG. 7 shows the original design data 706, but is an example in which the design change is repeated like 707 to 709 in consideration of the shape displacement at the time of loading. Each analysis result of 706-709 is shown to 710-713.

  If design data having a shape displacement value within an allowable range is obtained from the analysis results of 710 to 713, the process proceeds to step S315. Returning to the description of the sequence chart of FIG.

In step S315, the user terminal 110 receives an input of a report from the user. With reference to FIG. 8, the image of the report creation screen from the user will be described.
FIG. 8 is an example of an image of a report creation screen in the embodiment of the present invention.

  A graph 801 in FIG. 8 is a graph 714 in which the graphs 710 to 713 in FIG. 7 displayed in step S307 and step S314 are collectively displayed. Data 806 to 809 in the graph correspond to data in 710 to 713, respectively. Reference numeral 810 denotes a report creation screen image.

In the report creation screen 810 of FIG. 8, a word identified by the user is input in 802, a URI of the graph 801 is specified in 803, and a URI where the report itself is stored is specified in 804. Thereafter, when the execute button 805 is pressed, the report data is stored in the report storage destination URI. The image of the report input screen will be described with reference to FIG.
FIG. 10 is an example of an image of a report input screen according to the embodiment of the present invention.

  In FIG. 10, reference numeral 1001 denotes a design data group stored as the same group of design data. When the graph 801 is specified, the design data group 1001 is also specified. Reference numeral 1002 denotes a report input screen image.

In the report input screen 1002 of FIG. 10, a unique symbol (design D in the case of the input example 1002) of the design data finally determined by the user is input to 1003, and the design finally determined to 1004 Enter the conclusion of the data and its effect. Further, a graph 801 designated in FIG. An example of a report created as a result of the input in FIG. 10 will be described with reference to FIG.
FIG. 11 is an example of an image of a report in the embodiment of the present invention.

  Reference numeral 1101 in FIG. 11 is an example of a report of analysis results analyzed by the analysis device 120. These input words and data have an effect that it becomes possible to easily grasp the circumstances that led to the shape D when another developer confirmed this report at a later date. Returning to the description of the sequence chart of FIG.

  When the report information is input as shown in FIGS. 8 and 10 in step S315 in FIG. 3, the CAD control apparatus 100 creates a report as shown in FIG. 11 in step S316, and the analysis result storage unit 101. To remember.

Next, in step S317, the CAD control apparatus 100 extracts the design data of the final shape determined by the user and the differential shape between the design data created in the process of reaching the final shape. With reference to FIG. 5 and FIG. 9, the extraction method of a difference shape is demonstrated.
FIG. 9 is a diagram for explaining a differential shape extraction method according to the embodiment of the present invention.
In FIG. 9, it is assumed that the design data of the final shape is 506 in FIG. 5, and the design data of the shape 501 in FIG. 5 is created in the process of creating 506.

The difference between 501 and 506 in FIG. 5 is a portion corresponding to the element number of GROUP (3) because the difference between the node data 509 and the node data 504 results in a portion 901 corresponding to the rib. Therefore, the difference information data is extracted as in 902. The result of extracting the difference shape in the case of FIG. 7 in this way will be described with reference to FIG.
FIG. 6 is a diagram showing a version and a difference shape of design data created by the user in the embodiment of the present invention.

  In FIG. 6, the initial design data (shape A) was 601 (609), but the design data (shapes B to D) of 602 to 604 (610 to 612) are taken into consideration in consideration of the shape displacement at the time of stress loading. Design. This is an example in which a shape D is created as final shape design data.

  Since the design data of the final shape is the shape D (604, 612), the differential shapes of 601 602, and 603 are the rib portions such as 607 (615), 606 (614), and 605 (613), respectively. Correspond. Returning to the description of the sequence chart of FIG.

When the difference shape between the design data of the final shape and each design data created in the process of reaching the final shape is extracted in step S317 in FIG. 3, the process proceeds to step S318, and the difference shape extracted in step S317 is analyzed in step S318. The results are stored in the result comparison storage unit 103, and the design data version change process, design data storage process, and report creation process are terminated.
Next, with reference to FIG. 4, a flow in which a user searches design data and confirms a past developer's design process will be described.

FIG. 4 is an example of a sequence chart showing a flow of design data confirmation in the embodiment of the present invention, and S401 to S407 indicate steps in each information processing apparatus.
The sequence chart of FIG. 4 is started by a command such as confirmation of design data (not shown) when a CAD application is activated by a user.
In step S401, the user terminal 110 receives an input of a design data search condition screen from the user through an image input screen as shown in FIG.
FIG. 12 is an example of an image of the design data search input screen in the embodiment of the present invention.

  A part number, a part name, a function, a creation date, and the like to be searched are input to a search condition input screen 1201 in FIG. 12 to search a series of groups of design data. Returning to the description of the sequence chart of FIG.

  Subsequently, in step S402, the CAD control apparatus 100 searches for design data from the analysis result storage unit 101, the history shape storage unit 104, the analysis result comparison storage unit 103, and the like based on the search condition input in step S401. In step S403, the search result and output data are transmitted to the user terminal 110.

Next, in step S404, the user terminal 110 displays the shape and analysis result of a series of groups of design data on the display 210. With reference to FIG. 13, the display screen of the shape and analysis result of a series of groups of design data will be described.
FIG. 13 is an example of an image of design data and an analysis result display screen in the embodiment of the present invention.

  Reference numeral 1301 in FIG. 13 denotes a screen image output to the display 210 as a result of the search. In 1313, the text input from the user in step S315 is displayed, and in 1314, the shape of the design data of the same group designed so far and the analysis result are displayed. On the display screen 1314, the analysis result is displayed in the same color as the shape of the design data. That is, 1304 and 1308, 1305 and 1309, 1306 and 1310, and 1307 and 1311 are displayed in the same color, respectively, and the shape of the analysis result and design data can be easily determined. The design data 1304 to 1307 correspond to the design data 706 to 709, respectively.

  1315 of FIG. 13 displays all the shapes of the design data of the same group, and the difference portion of the shape of each design data is displayed in a color specific to each design data as in 1314. Returning to the description of the sequence chart of FIG.

  In step S405 in FIG. 4, the user terminal 110 selects one design data from the same group of design data according to the selection from the user. A method for selecting one design data will be described with reference to FIG.

  When the shape of 1306 is confirmed, the mouse pointer 1302 operable in FIG. 13 is moved to the character “add rib b” 1303 or on the figure 1306 and clicked to change the shape of 1306. Selected. Returning to the description of the sequence chart of FIG.

  In step S406, the CAD control apparatus 100 reads the selected design data from the history shape storage unit 104 and transmits it to the user terminal 110 in order to output the selected design data. The user terminal 110 acquires the transmitted design data, displays the design data shape of the design data 1306 as indicated by 1312 in FIG. 13, and ends the process.

With the configuration described above, the design data of the same group can be displayed multiple times at once, and the analysis results can be displayed at the same time. It has the effect that it can be used.
<Second Embodiment>

In the first embodiment, in order to display trial and error design data including analysis results of CAD design data in an easy-to-understand manner for future designers, a plurality of CAD design data and design data in a series of design processes are displayed. The design data of the final shape as a result is stored, the results of analyzing each of the plurality of CAD design data in the series of design processes, and the design data of the final shape are stored, and each analyzed analysis result is stored. Comparing and storing, comparing the stored final shape design data with a plurality of CAD design data in a series of design processes to extract a differential shape, and extracting the extracted differential shapes and final shape design data Display in different states and output the stored analysis results simultaneously. With this configuration, it is possible to manage the history of design data and analysis results, confirm the results analyzed by the designer, and easily reuse past design data.
However, in the above configuration, the user who creates and analyzes the design data takes a work load for collecting the analysis result and the report. (FIG. 10, FIG. 11).
In the second embodiment, a configuration having an effect of reducing an analysis load on a user who creates and analyzes design data will be described.
Note that the software configuration and hardware configuration of the second embodiment are the same as those of the first embodiment, and thus description thereof is omitted.
Hereinafter, the flow of the CAD control apparatus of the second embodiment will be described with reference to the sequence chart of FIG.

FIG. 15 is an example of a sequence chart showing a flow of design data input and report information input in the embodiment of the present invention, and S1501 to S1515 indicate steps in each information processing apparatus.
The sequence chart of FIG. 15 is started when a CAD application is started by a user and design data is input.
In step S1501, the user terminal 110 receives design data such as 1601 in FIG. 16 in response to an input from the user.
FIG. 16 is an example of input design data in the embodiment of the present invention.

  Reference numeral 1601 in FIG. 16 denotes a design data shape designed by the user. The design data includes an evaluation node 1602 to be evaluated like 1602, a dimension 1603 related to the evaluation node, and a name (L1) 1604 for each dimension. Yes. Other attribute information such as materials of design data to be designed is also input.

  In the second embodiment, the user who creates and analyzes design data by automatically changing and analyzing the name of each dimension: dimension name L1 within a specified range and displaying the analysis result. Is a system that can automatically collect data analysis results due to the difference in dimensions when creating data shapes by trial and error. Returning to the description of the sequence chart of FIG.

  In step S1502 of FIG. 15, the CAD control apparatus 100 stores design data (design data 1601) designed by the user in the history shape storage unit 104.

Next, in step S1503, the CAD control apparatus 100 inputs the dimension name of the place where the dimension is changed, the upper and lower limits of changing the dimension, the step size, etc., in order to change and analyze the dimension of the design data. The screen information is transmitted to the user terminal 110 (size change input unit). An example of the transmitted input screen will be described with reference to FIG.
FIG. 17 is an example of an image of a dimension change value input screen according to the embodiment of the present invention.

  Reference numeral 1700 denotes an input screen for dimension change values displayed on the display 210 of the user terminal 110. In a parameter column 1701 to be changed, a parameter value whose dimension is to be changed is input. In the case of FIG. 17, a parameter “L1”, that is, a dimension name is input. Hereinafter, with respect to 1702 to 1704, values related to the dimension names entered in the parameter column 1701 to be changed are input. In the case of FIG. 17, the dimension name “L1” has a lower limit column 1702 of “1 (mm)”, an upper limit column 1703 of “5 (mm)”, and the step size 1704 between the lower limit value and the upper limit value is “1 (mm)”. Design data is automatically created when L1 is 1 mm, 2 mm, 3 mm, 4 mm, and 5 mm, respectively. FIG. 17 is a diagram in the case where a displacement “Z-direction displacement” is applied as an evaluation method 1706 to an evaluation node 1705 “3” (corresponding to 1602 in FIG. 16) for the created design data. When a calculation execution button 1707 in the figure is pressed, the analysis is started by changing the design data by changing the size of the size name 1701 from the lower limit value 1702 to the upper limit value 1703 with a step size 1704. Returning to the flowchart of FIG.

  In step S1503 of FIG. 15, when the CAD control apparatus 100 receives the dimension name for changing the value of the design data and the change value of the dimension, the dimension of the dimension name 1701 received in step S1503 is changed from the set lower limit 1702. The design data is generated by changing the size with the step size 1704 with respect to the upper limit value 1703 (changed design data generation unit), and stored in the history shape storage unit 104 (step S1505).

Next, in step S1506, the CAD control device 100 transmits the design data information stored in step S1505 to the analysis device 120. The analysis device 120 in step S1507, the strength and shape displacement of the transmitted design data. The calculation result is transmitted to the CAD control apparatus 100 in step S1508.
In step S1509, the CAD control apparatus 100 stores the transmitted calculation result in the analysis result storage unit 101.

  The above-described processing from step S1504 to step S1509 is repeated while changing the size with the step size 1704 from the lower limit value 1702 to the upper limit value 1703 set for the dimension of the dimension name 1701 received in step S1503.

  Next, in step S1510, the CAD control apparatus 100 transmits design data obtained by repeatedly changing the dimension name 1701 and the analysis calculation result to the user terminal 110.

  In step S1511, the user terminal 110 displays the analysis calculation result transmitted in step S1510 to the user. A display example to the user is a graph 801 in FIG.

The merging of analysis results having different dimensions is performed by the user terminal 110, but may be performed by the CAD control device 100 or the analysis device 120.
The processing after step S1512 is the same as the processing after step S315 described above, and a description thereof will be omitted.

With the above configuration, the analysis result of the design change of only the dimensional change in the design data has an effect of reducing the analysis load on the user who creates and analyzes the design data by automatically calculating the analysis result.
It should be noted that the configuration and contents of the various data described above are not limited to this, and it goes without saying that the various data and configurations are configured according to the application and purpose.

  Although one embodiment has been described above, the present invention can take an embodiment as, for example, a system, apparatus, method, program, or recording medium, and specifically includes a plurality of devices. The present invention may be applied to a system including a single device.

  Hereinafter, with reference to the memory map shown in FIG. 14, a computer-readable recording medium (storage medium) recording a program for causing a computer to function as the CAD control apparatus 100 according to the present invention will be described.

  FIG. 14 is a diagram for explaining a memory map of a computer-readable recording medium (storage medium) in which a program for causing a computer to function is recorded as the CAD control apparatus 100 constituting the CAD control apparatus according to the embodiment of the present invention. is there.

  Although not specifically shown, information for managing a program group stored in the recording medium, for example, version information, creator, etc. is also stored, and information depending on the OS on the program reading side, for example, a program is identified and displayed. Icons may also be stored.

  Further, data depending on various programs is also managed in the directory. In addition, when a program or data to be installed is compressed, a program to be decompressed may be stored.

  The functions shown in FIGS. 3, 4, and 15 in this embodiment may be performed by a host computer by a program installed from the outside. In this case, the present invention is applied even when an information group including a program is supplied to the output device from a recording medium such as a CD-ROM, a flash memory, or an FD, or from an external recording medium via a network. Is.

  As described above, a recording medium in which a program code of software for realizing the functions of the above-described embodiments is recorded is supplied to the system or apparatus, and the computer (or CPU or MPU) of the system or apparatus is stored in the recording medium. It goes without saying that the object of the present invention can also be achieved by reading and executing the program code.

  In this case, the program code itself read from the recording medium realizes the novel function of the present invention, and the recording medium storing the program code constitutes the present invention.

  As a recording medium for supplying the program code, for example, a flexible disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, DVD-ROM, magnetic tape, nonvolatile memory card, ROM, EEPROM, A silicon disk or the like can be used.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) or the like running on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.

  Furthermore, after the program code read from the recording medium is written in a memory provided in a function expansion board inserted in the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the case where the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

  Further, the present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Needless to say, the present invention can be applied to a case where the present invention is achieved by supplying a program to a system or apparatus. In this case, by reading a recording medium storing a program represented by software for achieving the present invention into the system or apparatus, the system or apparatus can enjoy the effects of the present invention.

Furthermore, by downloading and reading out a program represented by software for achieving the present invention from a server, database, etc. on a network using a communication program, the system or apparatus can enjoy the effects of the present invention. It becomes.
In addition, all the structures which combined each embodiment mentioned above and its modification are also included in this invention.

DESCRIPTION OF SYMBOLS 100 CAD control apparatus 101 Analysis result memory | storage part 102 Difference shape extraction part 103 Analysis result comparison memory | storage part 104 History shape memory | storage part 105 1st output part 106 Analysis result output part 107 Shape designation | designated reception part 108 2nd output part 110 User Terminal 111 Input / output unit 120 Analysis device 121 Analysis unit

Claims (9)

A history shape storage means for storing design data of a plurality of CADs in a series of design processes and design data of a final shape as a result of the design;
Analysis result storage means for storing results analyzed by analysis means for analyzing each of a plurality of CAD design data in the series of design processes and the design data of the final shape;
Analysis result comparison storage means for comparing and storing each analysis result analyzed by the analysis result storage means;
Difference shape extraction means for comparing the design data of the final shape stored in the history shape storage means with each of a plurality of CAD design data in the series of design processes and extracting a difference shape;
First output means for outputting a plurality of difference shapes extracted by the difference shape extraction means to the input / output means in a state different from the design data of the final shape;
Analysis result output means for outputting the analysis result stored in the analysis result comparison storage means to the input / output means;
A CAD control device comprising: In the input / output means output by the first output means, a shape designation accepting means for accepting one designation of the plurality of differential shapes from a user;
2. The CAD control apparatus according to claim 1, further comprising: a second output unit configured to output CAD design data in a design process related to one differential shape whose designation is received by the shape designation receiving unit to the input / output unit.   3. The CAD control apparatus according to claim 1, wherein the first output unit outputs the difference shape extracted by the difference shape extraction unit in different colors. 4.   The CAD control apparatus according to claim 1, wherein the first output unit outputs the differential shapes extracted by the differential shape extraction unit side by side.   5. The CAD control apparatus according to claim 2, wherein the shape designation receiving means is designated by pressing a portion output by the first output means on the input / output means. A dimension change input means for receiving an input of a dimension change value of the design data;
Design data generating means for adapting the dimension change value received by the dimension change input means to the design data and generating design data having different dimensions;
The said history shape memory | storage means memorize | stores the design data from which the dimension produced | generated by the said design data production | generation means as a design data of several CAD in the said series of design processes, The Claim 1 thru | or 5 characterized by the above-mentioned. CAD control device. A plurality of CAD design data in a series of design processes, a history shape storage means for storing design data of a final shape as a result of the design, a plurality of CAD design data in the series of design processes, and Analysis result storage means for storing results analyzed by analysis means for analyzing final shape design data, and analysis result comparison storage means for comparing and storing the analysis results analyzed by the analysis result storage means In the CAD control method,
A differential shape extraction step of comparing the design data of the final shape stored in the history shape storage means with each of a plurality of CAD design data in the series of design processes to extract a differential shape;
A first output step of outputting a plurality of difference shapes extracted by the difference shape extraction means to the input / output means in a state different from the design data of the final shape;
An analysis result output step of outputting the analysis result stored in the analysis result comparison storage means to the input / output means;
A CAD control method characterized by comprising:   A program for causing a computer to execute the CAD control method according to claim 7.   A computer-readable recording medium on which a program for causing a computer to execute the CAD control method according to claim 7 is recorded.

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