JP4308465B2 - Coupling analysis method, analysis condition setting method thereof, storage medium thereof and program thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coupled analysis method for analyzing an object model using a plurality of types of physical simulation models, an analysis condition setting method thereof, a storage medium, and a program thereof, and more particularly, a series for setting analysis conditions of the object model. The present invention relates to an analysis method, an analysis condition setting method thereof, a storage medium, and a program thereof.
[0002]
[Prior art]
In recent years, for verification of a design model, simulation of the physical operation of the design model has been actively performed by a computer. For example, heat conduction analysis, fluid analysis, structural analysis, electromagnetic field analysis, electromagnetic wave analysis, and the like. In recent years, as the analysis target model becomes more complex, cases where a plurality of types of simulations are applied to the target model are increasing. This is called coupled analysis.
[0003]
FIG. 25 is an explanatory diagram of a conventional analysis method, FIG. 26 is an explanatory diagram of a conventional analysis condition setting procedure, and FIGS. 27A and 27B are explanatory diagrams of target model examples. As shown in FIG. 25, model data is created by a CAD system. For example, the model shown in FIG.
[0004]
The analysis system reads this data (generally the data is in unstructured form). Before the analysis, a physical simulation model (referred to as a physical model) is selected, and subsequently, analysis conditions for each element group of the target model and analysis conditions for the boundary of the element group are set. Thus, after the analysis conditions are set, analysis calculation is performed.
[0005]
This will be specifically described with reference to a model example in FIG. FIG. 27A is a conceptual diagram of a model for thermal-fluid analysis. Group 1, which is a set of model elements, is a fluid region in the housing, group 2 is a heating element, and group 3 is a heat insulator. Air flows in from the left inflow boundary in the figure, and air flows out from the right outflow boundary.
[0006]
FIG. 27B shows an element (mesh) divided for this model. An element group is a set of elements, and a boundary is a set of continuous element boundaries. The boundary may extend over a plurality of element groups, and does not necessarily exist at the boundary of element groups. In FIG. 27B, boundaries 2 and 4 are fluid walls, boundary 5 is a heat insulator wall, boundary 1 is an inflow, boundary 3 is an outflow boundary, boundary 6 is an insulator-fluid boundary, boundary 7 Is the boundary between the heating element and the fluid.
[0007]
Analysis conditions are set for this element group and boundary. The analysis conditions are the analysis type and the nature of the analysis (thermal conductivity, etc.). In the case of FIG. 27B, since group 1 has the properties of heat conduction and fluid, heat conduction and fluid are set in the physical model. Since group 2 is a solid heating element, only heat conduction is set in the physical model. Since group 3 is a heat insulator, nothing needs to be set. Further, group properties such as thermal conductivity are set for each group. Similarly, the physical model and the nature of the boundary are set for each boundary shown in FIG.
[0008]
For this setting, conventionally, as shown in FIG. 26, group and boundary names are displayed in different one-dimensional lists, each group or boundary is selected, and conditions are set separately for the group and boundary. .
[0009]
[Problems to be solved by the invention]
However, when there are two or more physical models, it is necessary to set a plurality of physical variables in the element group. Therefore, when a one-dimensional list is used, the setting work becomes complicated. Also, when setting boundary conditions, it is necessary to set boundary conditions while considering which boundary corresponds to which physical model and setting conditions in the element group, which further complicates the work. To do.
[0010]
In recent years, target models have become more complex, and analysis using a large number of physical models has increased, which requires a large number of groups, boundary condition settings, and a large number of physical model settings, making condition setting work complicated and difficult. The problem of becoming. Further, it is not easy to grasp the setting state between the group and the boundary, and there is a problem that the condition setting work is further complicated.
[0011]
For example, since the relationship between the boundary and the group that originally share the same physical model is not clear, the analysis conditions were set for one group (eg, “solid2”) using the physical model of the electrostatic field, The boundary condition of the same electrostatic field may be given to the boundary belonging to the group (for example, “solid1”).
[0012]
Accordingly, an object of the present invention is to provide a coupled analysis method for easily setting a condition between a target model group and a boundary in a coupled analysis system using a plurality of physical models, an analysis condition setting method thereof, a storage medium, and In providing that program.
[0013]
Another object of the present invention is to provide a coupled analysis method for facilitating the setting of conditions between a group and a boundary by utilizing the common physical model between the group and the boundary of the target model, and setting the analysis conditions thereof. A method, a storage medium, and a program thereof are provided.
[0014]
Furthermore, another object of the present invention is to provide a coupled analysis method, an analysis condition setting method thereof, a storage medium, and a program thereof for linking condition settings and target models on a screen to facilitate condition setting. It is in.
[0015]
[Means for Solving the Problems]
  In order to achieve this object, in the coupled analysis method of the present invention, a computer creates a correspondence list indicating a correspondence relationship between the element group and the boundary from the element group and boundary data of the target model. A step of storing in a device; a step of displaying a two-dimensional list of element groups constituting the target model and a specifiable physical model on a display device by a computer; and the two-dimensional list of the display device,By setting the element group using an input device on the analysis condition setting screen of the element group displayed on the same screen as the analysis condition setting screen of the boundary of the display device,Setting a physical model of the element group, searching a boundary of the target model corresponding to the set element group from a correspondence list of the file device by a computer, and the target model of the display device Displaying the physical model of the set element group at the searched boundary on the boundary analysis condition setting screen, and displaying the display by the input device on the boundary analysis condition setting screen displayed A boundary condition setting screen for the physical model is set, a boundary analysis condition is set on the boundary condition setting screen by the input device, and the set physical model is set by a computer. Analyzing the target model under a model and analysis conditions.
[0016]
  According to the analysis condition setting method in the coupled analysis of the present invention, a computer creates a correspondence list indicating the correspondence between the element group and the boundary from the element group and boundary data of the target model, and a file device Storing a two-dimensional list of element groups constituting the target model and a specifiable physical model on a display device by a computer, and the two-dimensional list of the display device,By setting the element group using an input device on the analysis condition setting screen of the element group displayed on the same screen as the analysis condition setting screen of the boundary of the display device,Setting a physical model of the element group, searching a boundary of the target model corresponding to the set element group from a correspondence list of the file device by a computer, and the target model of the display device Displaying the physical model of the set element group at the searched boundary on the boundary analysis condition setting screen, and displaying the display by the input device on the boundary analysis condition setting screen displayed Setting the physical model, opening a boundary condition setting screen for the physical model, and setting analysis conditions for the boundary on the boundary condition setting screen using the input device.
[0017]
The storage medium for storing the analysis condition setting program in the coupled analysis of the present invention includes a program for setting a physical model of an element group constituting the target model, and the target model corresponding to the set element group. A program for searching for a boundary and an analysis condition setting screen for the boundary of the target model, a program for reflecting the physical model of the element group on the searched boundary, and an analysis condition setting screen for the reflected boundary And a program for setting the analysis condition of the boundary.
[0018]
The analysis condition setting program in the coupled analysis of the present invention searches for a program for setting a physical model of an element group constituting the target model and a boundary of the target model corresponding to the set element group And a program for reflecting the physical model of the element group on the searched boundary in the analysis condition setting screen for the boundary of the target model, and the analysis of the boundary in the analysis condition setting screen for the reflected boundary And a program for setting conditions.
[0019]
In the present invention, the correlation between the group and the boundary is reflected on the boundary condition setting screen by using the principle that a certain group and the boundary between the groups have a common physical model property. For this reason, when a physical model of a group is set, a boundary corresponding to the group is automatically searched, and an analysis condition for the boundary is set on the boundary condition setting screen. Thereby, in the analysis condition setting of the coupled analysis, the association between the element group of the target model and the boundary is automatically performed, and the analysis condition can be easily and accurately set.
[0020]
In the coupled analysis method of the present invention, preferably, in the element group setting step, the element group is set on the element group analysis condition setting screen displayed on the same screen as the boundary analysis condition setting screen. By comprising the steps to be performed, the correspondence is displayed on the same screen, and it is easier to understand and the analysis conditions can be set accurately.
[0021]
In the coupled analysis method of the present invention, it is preferable that the method further includes a step of displaying the shape of the target model on the same screen as the analysis condition setting screen. Analysis conditions can be set.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described based on the drawings in the order of a coupled analysis system, an analysis condition setting method, and other embodiments.
[0023]
[Coupled analysis system]
1 is a configuration diagram of a coupled analysis system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a setting screen of FIG. 1, and FIG. 3 is an explanatory diagram of an analysis condition setting screen of the element group, FIG. 4 is an explanatory diagram of an analysis condition setting screen for the boundary.
[0024]
As shown in FIG. 1, the coupled analysis system includes a CPU (processor) 1, a display 2, an input device 3 such as a mouse, and a file device (storage device) 4. This analysis system can use a well-known personal computer.
[0025]
The CPU 1 includes a CAD model creation process 10, a mesh creation process 11, a list registration process 12, an element group analysis condition setting process 13, an element boundary analysis condition setting process 14, and a physical model simulation calculation process 15. Then, the calculation result display process 16 is performed. Each process is modularized, and a part of general-purpose modules can be used.
[0026]
The CAD model creation process 10 creates a model for performing numerical calculations. The mesh creation process 11 divides a mesh (element) into the created model. At this time, groups and boundaries of each mesh (element) are defined.
[0027]
The list registration processing 12 registers a group in the group list 41, a boundary in the boundary list 42, and registers a correspondence relationship between the group and the boundary in the correspondence list 40. In FIG. 1, the correspondence list 40 is provided in the file device 4 and stores a group number and a corresponding boundary number.
[0028]
The element group analysis condition setting process 13 and the element boundary analysis condition setting process 14 set analysis conditions for groups and boundaries of meshes (elements) divided into meshes. For example, in the heat conduction analysis, the heat conductivity is set for the element group, and the temperature and heat transfer coefficient are set for the boundary. In the structural analysis, conditions such as Young's modulus are set for element groups and loads are set for boundaries. As one feature of the present invention, the two analysis condition setting processes 13 and 14 are linked to each other.
[0029]
The analysis condition setting process will be described with reference to FIGS. FIG. 2 shows an analysis condition setting screen 100 for the display 2. The analysis condition setting screen 100 is provided with three areas 110, 120, and 130. The first area 110 displays a two-dimensional list of physical models and element group names. The second area 120 displays a two-dimensional list of physical models and boundary names. The third area 130 displays the target model shape.
[0030]
The two-dimensional list 110 for element group setting is a table of each element group name and a physical simulation model that can be specified by this system. In the example of FIGS. 2 and 3, three groups 1, 2, 3 of the target model (third region 130 of FIG. 2) and five specifiable physical models (heat conduction, fluid, structural analysis, electrostatic magnetic field) , Electromagnetic field).
[0031]
In selecting a physical model, by clicking (or double-clicking) an area where the physical model and the element group intersect in the two-dimensional list 110, the physical model of the element group is selected, and the physical variable human resource of the corresponding physical model is selected. Screens 112 and 114 are opened and variables can be entered.
[0032]
In the example of FIG. 3, by clicking on the heat conduction in the two-dimensional list 110, a variable setting screen 112 for heat conduction analysis is opened, and it is possible to input heat conductivity, specific heat, and the like. By clicking on the fluid in the two-dimensional list 110, the fluid analysis variable setting screen 114 is opened, and the viscosity coefficient, mass density, and the like can be input. A circle is displayed in the set field of the two-dimensional list 110.
[0033]
The two-dimensional list 120 for setting boundary conditions is a table of each boundary name and a physical simulation model that can be specified by this system. In the example of FIGS. 2 and 4, the boundaries 1, 2, 3, 4 of the target model (third region 130 in FIG. 2) and five specifiable physical models (heat conduction, fluid, structural analysis, electrostatic magnetic field) , Electromagnetic field).
[0034]
In selecting the boundary condition, clicking (or double-clicking) the area where the physical model and the boundary intersect in the two-dimensional list 120 opens the corresponding physical model physical variable screen 122, 124, and inputs the variable. Can do.
[0035]
In the example of FIG. 4, by clicking on the heat conduction in the two-dimensional list 120, a boundary condition setting screen 122 for heat conduction analysis is opened, and heat flux, heat transfer coefficient, and the like can be input. Also, by clicking the fluid in the two-dimensional list 120, the boundary condition setting screen 124 for fluid analysis is opened, and pressure, flow velocity, etc. can be input.
[0036]
One feature of the present invention is that it has a two-dimensional list display function of physical models and boundary names, refers to the correspondence list 40 of the file 4 described above, and shows the physical model assignment status of each element group in the boundary list 120. To display. In the boundary list 120, a boundary (a region where the physical model and the boundary intersect) where condition setting is required is automatically checked. For example, a circle is displayed. By clicking (or double-clicking) the boundary name area that is checked, you can set the boundary conditions of the physical model to which each boundary corresponds.
[0037]
In addition, the two-dimensional list display of the physical model and the element group name, the two-dimensional list display of the physical model and the boundary name, and the display of the model shape are displayed side by side on one screen, so that the analysis setting status can be easily displayed. I can grasp.
[0038]
As described above, the two-dimensional list 110 facilitates the setting of physical variables to element groups in achievement analysis involving a plurality of physical models. In addition, since the setting condition of the physical variable for the element group is discriminated, the boundary condition that needs to be set is automatically checked and set in the boundary list 120, the boundary condition can be easily set. Furthermore, since the element group list, the boundary list, and the model shape can be output at the same time, it is easy to grasp the analysis setting status.
[0039]
Returning to FIG. 1, the calculation process 15 performs a calculation using the mesh-divided model and analysis conditions to obtain a solution. This calculation process 15 can use a general-purpose thermal analysis program, structural analysis program, fluid analysis program, or the like. The result display process 16 outputs the calculation result obtained by the calculation process to the screen.
[0040]
[Analysis condition setting method]
Next, the list registration process 12 and the analysis condition setting processes 13 and 14 will be described with reference to FIGS. 5 is a list registration / analysis condition setting process flow diagram of FIG. 1, FIG. 6 is a relationship diagram of elements and boundaries of FIG. 5, FIG. 7 is a boundary data creation process flow diagram of FIG. FIG. 5 is a flowchart of boundary data correction processing, and FIG. 9 is a link processing flowchart of FIG.
[0041]
Registration and setting processing will be described with reference to FIG.
[0042]
(S1) Create an element group data structure. In the example of FIG. 1, the read element group is registered in the group list 41.
[0043]
(S2) An element boundary data structure is created from the read element group or element group and element boundary data. As shown in FIG. 6, the boundary A may straddle the elements A, B, and C. In such a case, the boundary A is divided into a boundary AB and a boundary AC. In this way, one boundary can be defined as having one element on one side or one element on both sides, and analysis conditions can be set using the correlation between the boundary and the element. In the example of FIG. 1, this boundary is registered in the boundary list 42, and the correlation between the group and the boundary is registered in the correspondence list 40. This process will be described in detail with reference to FIGS.
[0044]
(S3) As shown in FIG. 2, the analysis condition setting screen 100 is displayed, and the physical model of the element group is selected from the two-dimensional list of element groups and physical models in the area 110. As shown in FIG. 2 and FIG. 3, the area of the intersection of the group and the physical model is clicked. In response to this, the element boundary of the selected element group is automatically searched by the correspondence list 40. The physical model of the element boundary in the two-dimensional list of the element boundary of the region 120 and the physical model is determined as the clicked physical model. This process will be described in detail with reference to FIG.
[0045]
(S4) Similarly, as shown in FIG. 2, the physical model of the element boundary is selected from the two-dimensional list of the element boundary and the physical model in the area 120 of the analysis condition setting screen 100. As shown in FIGS. 2 and 4, the region where the element boundary intersects the physical model is clicked. In response to this, an element group having the selected element boundary as a boundary is automatically searched from the correspondence list 40. The physical model of the element group in the two-dimensional list of the element group and the physical model in the area 110 is determined as the clicked physical model.
[0046]
(S5) As shown in FIGS. 3 and 4, the analysis condition setting screens 112, 114, 122, and 124 of each physical model are opened, and analysis conditions are set (input).
[0047]
With reference to FIG. 7, the boundary data creation processing described with reference to FIGS. 5 and 6 will be described. FIG. 7 shows a boundary data creation process when only element groups are read.
[0048]
(S10) After reading the element group data (element group and its elements), the element group pointer N is initialized to “1”.
[0049]
(S11) The element pointer M is initialized to "1".
[0050]
(S12) The adjacent element data is searched for the Mth element belonging to the Nth element group.
[0051]
(S13) If there is an adjacent element in the element group J, the Mth element and the element boundary surface position are registered in the data of the boundary [N, J].
[0052]
(S14) On the other hand, when there is no adjacent element, the Mth element and the position of the element boundary surface are registered in the data of the boundary [N, 0].
[0053]
(S15) The element pointer M is incremented to “M + 1”, and it is determined whether the element pointer M exceeds the maximum value Mmax. If not, the process returns to step S12.
[0054]
(S16) If it exceeds, it is determined whether the element group pointer N exceeds the maximum value Nmax. If not, the process returns to step S11. If it has exceeded, the boundary search for all element groups has ended, and the process ends.
When boundary data is given, the process of FIG. 7 is not necessary.
[0055]
Next, the boundary data correction processing described with reference to FIG. 6 will be described with reference to FIG.
[0056]
(S20) After reading element group data (element group and its elements) and element boundary data, the element boundary pointer N is initialized to "1".
[0057]
(S21) The number of element groups belonging to the Nth element boundary is counted.
[0058]
(S22) If the number of element groups is 3 or more, the Nth element boundary data is divided into a plurality of elements, and element boundary data is newly created.
[0059]
(S23) When the number of element groups is 2 or less, no division is performed. That is, when the number of element groups is 2 or less and when the number of element groups is corrected to 2 or less in step S22, it is determined whether the element boundary pointer N exceeds the maximum value Nmax. If not, the process returns to step S21. If so, the process ends because all element boundaries have been processed.
[0060]
In this way, one boundary can be defined as having one element on one side or one element on both sides, and an analysis condition can be set using the correlation between the boundary and the element.
[0061]
Next, the link process between the element group and the boundary in the condition setting process of FIG. 5 will be described with reference to FIG.
[0062]
(S30) When the physical model of the Nth element group is selected in the two-dimensional list 110 of the boundary groups in FIG. 2, the Nth element group is displayed in a circle on the group list 110.
[0063]
(S31) With reference to the correspondence list 40, a boundary for the selected group is searched. The boundary elements hit by the search are displayed in a circle on the boundary list 120.
[0064]
In this way, as described with reference to FIG. 2, the correspondence between the selected group and the boundary is automatically checked and reflected in the setting of analysis conditions.
[0065]
Next, an analysis condition setting method will be described with reference to FIGS.
[0066]
FIG. 10 is an initial screen diagram for setting analysis conditions. In FIG. 10, an icon 140 is for designating the model creation process of FIG. 1, an icon 150 is for designating the mesh creation process of FIG. 1, and an icon 160 is for designating the analysis condition setting process. The icon 170 is for designating calculation processing, and the icon 180 is for designating result display processing.
[0067]
When the analysis condition setting process icon 160 is clicked, the target model shape is displayed in the screen area 130, the group two-dimensional list 110 is displayed in the screen area 110, and the boundary is displayed in the screen area 120, as shown in FIG. The two-dimensional list 120 is displayed.
[0068]
In this example, the group number is arranged on the vertical axis of the two-dimensional list 110, and the viewing (View), group name, and physical model (heat conduction, electrostatic field, fluid) are arranged on the horizontal axis. Then, it is shown that there are two groups of target models, “solid 1” and “solid 2”.
[0069]
Similarly, a boundary number is arranged on the vertical axis of the two-dimensional list 120, and a view (View), a boundary name, and a physical model (heat conduction, electrostatic field, fluid) are arranged on the horizontal axis. The target model boundaries are the boundaries “slf 1” to “slf 6” of the group “solid 1” and the boundaries “s2f 1” to “s2f 3” of “solid 2”.
[0070]
Next, the group selection process will be described with reference to FIGS. By clicking the group selection mode 190 shown in FIGS. 10 and 13, group selection, that is, the physical properties of each group are selected. When selecting (double-clicking) an area where the group name and the list 110 created by the physical model intersect with the mouse (or double-clicking), a circle (O) is displayed as shown in FIG. 11 and FIG. The physical properties for are determined. At this time, the boundary of the selected group is automatically checked, and the same physical properties as the group are determined as shown in FIGS. Furthermore, a circle (O) is displayed in the boundary list. If the area where the circle mark (◯) is displayed in the group list is clicked (or double-clicked) with the mouse, the circle mark (◯) disappears and the setting is canceled.
[0071]
Specifically, as shown in FIG. 13, when a region A where “group” and “physical model” intersect is clicked (or double-clicked) with the mouse, the boundary B of the group is automatically checked. For example, if the physical property of a group is determined to be “heat conduction”, it is uniquely determined that the boundary property of the group has the property of “heat conduction” (correlation between the group and the boundary). This is automatically reflected on the group list 110 and the boundary list 120.
[0072]
When there are a plurality of boundaries, it is difficult to understand which boundary has what physical properties. However, by using the group / boundary lists 110 and 120, the user can correct and It is possible to easily set analysis conditions.
[0073]
Similarly, as shown in FIG. 12, for the group “solid 2”, if the physical property is determined to be “heat conduction”, the boundary property of the group is uniquely “heat conduction”. It is automatically reflected on the group list 110 and the boundary list 120.
[0074]
Next, the process moves to the setting of analysis conditions, and the setting icon 200 in FIGS. 10 and 13 is clicked. Clicking (or double-clicking) the area where the circle (○) selected in the selection mode and the physical properties are displayed with the mouse (or double-clicking) the analysis condition setting screen corresponding to the physical properties (Figs. 3-4) Is displayed, and analysis conditions can be set. While the analysis condition setting screen is displayed (waiting for setting), the corresponding group or boundary is highlighted as shown in FIGS.
[0075]
Furthermore, after setting the analysis conditions, the circle mark (◯) in the list is changed to a double circle (丸) mark so that the user can grasp the setting progress at a glance. In the case where calculation is performed by changing the analysis conditions of the set location set previously (for example, the thermal conductivity is doubled), it becomes very easy to specify the set location.
[0076]
Furthermore, group and boundary drawing modes are possible. As shown in FIGS. 14 and 15, when a white square (□) in the view (View) column of the list 110 is clicked, the display becomes a black square (■), and the corresponding group is highlighted in a different color or the like on the screen. The Similarly, when a white square (□) in the view (View) column of the list 120 is clicked, the display becomes a black square (■), and the corresponding boundary is displayed on the screen as shown in FIGS. Are highlighted in different colors.
[0077]
When the highlighted area on the model drawing screen is clicked (or double-clicked) with the mouse, an analysis condition setting screen (FIGS. 3 to 4) is displayed, and analysis conditions can be set. That is, both setting using a list and setting using a drawing screen are possible.
[0078]
In the above-described embodiment, the group list 110 and the boundary list 120 are simultaneously displayed on the screen, but one may be displayed and the other may be displayed by switching.
[0079]
[Other embodiments]
19 and 20 are explanatory diagrams of a variable setting screen according to another embodiment of the present invention. In FIG. 19, a variable setting screen for heat conduction analysis and a variable setting screen for fluid analysis are configured by one setting screen 116. On this screen 116, it is possible to input heat conductivity, specific heat, viscosity coefficient, mass density, and the like.
[0080]
In FIG. 20, a boundary condition setting screen for heat conduction analysis and a boundary condition setting screen for fluid analysis are configured by one setting screen 126, and heat flux, heat transfer coefficient, pressure, flow velocity, and the like can be input.
[0081]
FIG. 21 to FIG. 24 are explanatory diagrams exemplifying a vibration or moving model according to another embodiment of the present invention. As shown in FIG. 22, in the model in which the solid (group 2) moves by the fluid (group 1) or in the model in which the solid (group 2) vibrates in the electromagnetic wave region (group 1) as shown in FIG. Further, it is necessary to set a boundary moving method as a condition. For example, point object movement, surface object movement, axial movement, and the like.
[0082]
In this case, as shown in FIG. 21, FIG. 23, FIG. 24, for example, the moving group and the moving boundary are displayed as a double circle so as to be distinguished from the non-moving group and the non-moving boundary. To call. As a result, even in the movement / vibration model, groups and boundaries can be linked with distinction.
[0083]
As mentioned above, although this invention was demonstrated by embodiment, in the range of the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the technical scope of this invention.
[0084]
(Supplementary note 1) In the coupled analysis method for simulating a target model with a plurality of physical models, a step of setting a physical model of an element group constituting the target model, and a step of setting the target model corresponding to the set element group Searching for boundaries;
Reflecting the physical model of the element group to the searched boundary on the boundary analysis condition setting screen of the target model, and setting the boundary analysis condition on the reflected boundary analysis condition setting screen And a step of analyzing the target model with the set physical model and analysis conditions.
[0085]
(Supplementary Note 2) The element group setting step includes a step of setting the element group on an element group analysis condition setting screen displayed on the same screen as the boundary analysis condition setting screen. The coupled analysis method of appendix 1.
[0086]
(Supplementary note 3) The coupled analysis method according to supplementary note 1, further comprising a step of displaying the shape of the target model on the same screen as the analysis condition setting screen.
[0087]
(Appendix 4) The element group setting step includes a step of setting the element group on an analysis condition setting screen including a two-dimensional list of the element group and the physical model. Coupled analysis method.
[0088]
(Additional remark 5) The said reflection step consists of a step which reflects the physical model of the said element group on the analysis condition setting screen of the boundary which consists of a two-dimensional list of the said boundary and the said physical model. Coupled analysis method.
[0089]
(Supplementary note 6) The coupled analysis method according to supplementary note 1, further comprising a step of generating a correspondence list indicating a correlation between the element group and the boundary from the element group and boundary data of the target model.
[0090]
(Supplementary note 7) The coupled analysis method according to supplementary note 1, further comprising the step of generating boundary data belonging to two or less element groups from the element group and boundary data of the target model.
[0091]
(Supplementary note 8) In an analysis condition setting method in a coupled analysis in which a target model is simulated by a plurality of physical models, a step of setting a physical model of an element group constituting the target model, and corresponding to the set element group Searching the boundary of the target model; reflecting the physical model of the element group on the searched boundary on the boundary analysis condition setting screen of the target model; and setting the analysis condition of the reflected boundary An analysis condition setting method for coupled analysis, comprising: setting an analysis condition for the boundary on a screen.
[0092]
(Supplementary note 9) The element group setting step includes a step of setting the element group on an element group analysis condition setting screen displayed on the same screen as the boundary analysis condition setting screen. The analysis condition setting method of the coupled analysis according to appendix 8.
[0093]
(Supplementary note 10) The analysis condition setting method for coupled analysis according to supplementary note 8, further comprising the step of displaying the shape of the target model on the same screen as the analysis condition setting screen.
[0094]
(Supplementary note 11) The element group setting step includes a step of setting the element group on an analysis condition setting screen including a two-dimensional list of the element group and the physical model. Analysis condition setting method for coupled analysis.
[0095]
(Additional remark 12) The said reflection step consists of a step which reflects the physical model of the said element group on the analysis condition setting screen of the boundary which consists of a two-dimensional list of the said boundary and the said physical model. Analysis condition setting method for coupled analysis.
[0096]
(Supplementary note 13) The analysis condition setting method for coupled analysis according to supplementary note 8, further comprising the step of generating a correspondence list indicating a correlation between the element group and the boundary from the element group and boundary data of the target model.
[0097]
(Supplementary note 14) The analysis condition setting method for coupled analysis according to supplementary note 8, further comprising the step of generating boundary data belonging to two or less element groups from the element group and boundary data of the target model.
[0098]
(Supplementary note 15) A program for setting a physical model of an element group constituting the target model in a storage medium for storing an analysis condition setting program in a coupled analysis for simulating the target model with a plurality of physical models, and the setting A program for searching the boundary of the target model corresponding to the element group that has been searched, and a program that reflects the physical model of the element group on the searched boundary in the analysis condition setting screen for the boundary of the target model; A storage medium storing a program for setting the boundary analysis condition on the reflected boundary analysis condition setting screen.
[0099]
(Supplementary Note 16) In an analysis condition setting program in a coupled analysis in which a target model is simulated by a plurality of physical models, a program for setting a physical model of an element group constituting the target model, and the set element group A program for searching for the boundary of the corresponding target model, a program for reflecting the physical model of the element group on the searched boundary on the analysis condition setting screen for the boundary of the target model, and the reflected boundary And a program for setting the boundary analysis condition on the analysis condition setting screen.
[0100]
Based on the principle that a certain group and its boundary have the characteristics of a common physical model, the correlation between the group and the boundary is reflected on the boundary condition setting screen. For this reason, when a physical model of a group is set, a boundary corresponding to the group is automatically searched, and an analysis condition for the boundary is set on the boundary condition setting screen. Thereby, in the analysis condition setting of the coupled analysis, the association between the element group of the target model and the boundary is automatically performed, and the analysis condition can be easily and accurately set.In addition, the physical model is displayed on the boundary condition setting screen, and the boundary condition setting screen can be opened and the analysis conditions for the boundary can be set by setting the physical model. In addition, boundary analysis conditions for the physical model can be easily set.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram of an embodiment of the present invention.
FIG. 2 is an explanatory diagram of an analysis condition setting screen of the system of FIG.
3 is a configuration diagram of an element group list in FIG. 2. FIG.
4 is a configuration diagram of an element boundary list in FIG. 2; FIG.
FIG. 5 is a flowchart of an analysis condition setting process in FIG. 1;
6 is an explanatory diagram of the boundary division processing of FIG. 5;
FIG. 7 is a flowchart of boundary detection processing in FIG. 5;
FIG. 8 is a flowchart of boundary correction processing in FIG. 5;
9 is a flowchart of the link processing in FIG.
10 is an explanatory diagram of an analysis condition setting screen in FIG. 1. FIG.
11 is an explanatory diagram of element group settings on the screen of FIG. 10;
FIG. 12 is an explanatory diagram for setting other element groups on the screen of FIG. 10;
13 is an enlarged view of the group and boundary list of the screen of FIG.
14 is an explanatory drawing of model drawing when setting an element group on the screen of FIG. 10;
15 is a model drawing explanatory diagram for setting other element groups in the screen of FIG. 10;
16 is an explanatory drawing of model drawing at the time of boundary setting on the screen of FIG.
FIG. 17 is an explanatory drawing of model drawing when another boundary is set on the screen of FIG. 10;
FIG. 18 is an explanatory drawing of model drawing at the time of setting another boundary on the screen of FIG. 10;
FIG. 19 is an explanatory diagram of an analysis variable setting screen according to another embodiment of the present invention.
FIG. 20 is an explanatory diagram of a boundary condition setting screen according to another embodiment of the present invention.
FIG. 21 is an explanatory diagram of an analysis condition setting screen according to another embodiment of the present invention.
FIG. 22 is an explanatory diagram of a target model according to another embodiment of the present invention.
FIG. 23 is an explanatory diagram of an analysis condition setting screen according to still another embodiment of the present invention.
FIG. 24 is an explanatory diagram of a target model according to still another embodiment of the present invention.
FIG. 25 is an explanatory diagram of a prior art.
FIG. 26 is an explanatory diagram of a conventional analysis condition setting screen.
FIG. 27 is an explanatory diagram of an analysis target model.
[Explanation of symbols]
1 CPU
2 Display
3 Input devices
4 File devices
10 CAD model creation process
11 Mesh creation process
12 List registration process
13 Element group analysis condition setting process
14 Element boundary analysis condition setting process
15 Calculation execution process
16 Result display processing
40 group-boundary list

Claims (5)

In the coupled analysis method that simulates the target model with multiple physical models,
A computer creates a correspondence list indicating a correspondence relationship between the element group and the boundary from the element group and boundary data of the target model, and stores the correspondence list in a file device;
Displaying, on a display device, a two-dimensional list of element groups constituting the target model and a specifiable physical model by a computer;
In the two-dimensional list of the display device, the element group is set using the input device on the analysis condition setting screen of the element group displayed on the same screen as the analysis condition setting screen of the boundary of the display device. by the steps of setting a physical model of the element group,
Searching a boundary of the target model corresponding to the set element group from a correspondence list of the file device by a computer;
Displaying the physical model of the set element group on the searched boundary on the analysis condition setting screen of the boundary of the target model of the display device;
On the displayed boundary analysis condition setting screen, the input device sets the displayed physical model, opens the physical model boundary condition setting screen, and the input device opens the boundary condition setting screen. Setting analysis conditions for the boundary;
And a step of analyzing the target model with the set physical model and analysis conditions by a computer. The coupled analysis method according to claim 1, further comprising displaying a shape of the target model on an analysis condition setting screen for the boundary of the display device. In the analysis condition setting method in the coupled analysis that simulates the target model with multiple physical models,
A computer creates a correspondence list indicating a correspondence relationship between the element group and the boundary from the element group and boundary data of the target model, and stores the correspondence list in a file device;
Displaying, on a display device, a two-dimensional list of element groups constituting the target model and physical models that can be pointed out by a computer;
In the two-dimensional list of the display device, the element group is set using the input device on the analysis condition setting screen of the element group displayed on the same screen as the analysis condition setting screen of the boundary of the display device. by the steps of setting a physical model of the element group,
Searching a boundary of the target model corresponding to the set element group from a correspondence list of the file device by a computer;
Displaying the physical model of the set element group on the searched boundary on the analysis condition setting screen of the boundary of the target model of the display device;
On the displayed boundary analysis condition setting screen, the input device is used to specify the displayed physical model, the physical model boundary condition setting screen is opened, and the boundary analysis condition is set using the input device. An analysis condition setting method for coupled analysis, comprising: In a storage medium for storing an analysis condition setting program in a coupled analysis for simulating a target model with a plurality of physical models,
Creating a correspondence list indicating a correspondence relationship between the element group and the boundary from the element group and boundary data of the target model, and storing the correspondence list in a file device;
Displaying a two-dimensional list of element groups constituting the target model and a specifiable physical model on a display device;
In the two-dimensional list of the display device, the element group is set using the input device on the analysis condition setting screen of the element group displayed on the same screen as the analysis condition setting screen of the boundary of the display device. by the steps of setting a physical model of the element group,
Retrieving a boundary of the target model corresponding to the set element group from a correspondence list of the file device;
Displaying the physical model of the set element group on the searched boundary on the analysis condition setting screen of the boundary of the target model of the display device;
On the displayed boundary analysis condition setting screen, the input device specifies the displayed physical model, opens the physical model boundary condition setting screen, and the input device opens the boundary condition setting screen. And storing the program for causing a computer to execute the step of setting the boundary analysis condition. In the analysis condition setting program in the coupled analysis that simulates the target model with multiple physical models,
Creating a correspondence list indicating a correspondence relationship between the element group and the boundary from the element group and boundary data of the target model, and storing the correspondence list in a file device;
Displaying a two-dimensional list of element groups constituting the target model and a specifiable physical model on a display device;
In the two-dimensional list of the display device, the element group is set using the input device on the analysis condition setting screen of the element group displayed on the same screen as the analysis condition setting screen of the boundary of the display device. by the steps of setting a physical model of the element group,
Searching a boundary of the target model corresponding to the set element group from a correspondence list of the file device;
Displaying the physical model of the set element group on the searched boundary on the analysis condition setting screen of the boundary of the target model of the display device;
A program causing the computer to execute a step of setting the boundary analysis condition on the boundary condition setting screen by the input device on the displayed boundary analysis condition setting screen.

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