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1、SECTION 12Simulation generatorWHAT IS THE SIMULATION GENERATOR?The Simulation Generator is an interface used to run a specific set of load cases (Senarios) for a given Variant of a product, sub-assembly, or part.For each scenario, the run-ready input deck will be assembled out of a different set of

2、models of the explicit configuration of the variant. In the Simulation Generator the user selects a combination of simulation load cases and model configurations to simulate. For each selected Simulation Def, an Assemble and Simulate procedure will be run, but all are managed under a single interfac

3、e. Any number of analysis runs can be started at once after changing one or more sub models.The analysis of model variations can be optimized independent from discipline/solver.Simulation Generator utilizes a predefined product structure definition and simulation definitions that must be configured

4、ahead of time.Configuration for the Simulation generatorINTRODUCTION TO SIMULATION STUDYA Simulation Study is the key object that must be created in order to use the Simulation GeneratorA Simulation Study represents a collection of simulations conducted to investigate the behavior of a particular de

5、sign variant of an item (product, component, sub-assembly or part)A Simulation Study uses the structure provided by a Simulation Study Def to establish the Simulation Defs and ModelDefs that are used.Certain prerequisite objects must be created in advance before a simulation study can be created. Th

6、ese are the following:Product Structure Definition (ItemDef Hierarchy and corresponding ModelDefs). Discussed in Section 5, Set UpSimulation Study DefStudy VariantSIMULATION STUDYStudy Variantvariant under consideration for the studySimulation Study DefSimulation DefScenarioModelDefResult RequestSim

7、ulation ApplicationsAn overview of the prerequisite objects for a Simulation Study is presented in this section. For complete details on configuring these objects, see course SMM112.SIMULATION STUDY DEFINITIONA “Simulation Study Def” defines the configuration that underlies a Simulation Study for th

8、e simulation generator.A simulation study def will reference one or more simulation defs. It contains a simulation def for each simulation to be conducted in the study. Each SimulationDef defines a load case (scenario), including the ModelDef that defines the model content and the applications to be

9、 used for assembly, solving, and post-processing.Study VariantSimulation Study DefSimulation DefSimulation studyCREATING A SIMULATION STUDY DEF A Simulation Study Definition is created from the Root Item Definition (ItemDef) SOD.To navigate to the appropriate itemDef SOD you can do a search on the I

10、temDef name that you need. In this case “Neon.”From the MOD list that appears select Neon, which will take you to the “Neon Item def” SODCREATING A SIMULATION STUDY DEF (CONT.) Once on the “Neon item def” SOD use the “New SimulationStudyDef” icon to establish a Simulation Study Definition for the Ne

11、on Root Level ItemDef.CREATING A SIMULATION STUDY DEF (CONT.)On the New Simulation Studydef form select a VariantDef, in this case “Neon-V1.” Recall a VariantDef is like a product line, which is different from the design variant. Enter a name and optionally a description of the simulation. CREATING

12、A SIMULATION STUDY DEF (CONT.)Use “Select” to get a list of Simulation DefinitionsFrom the “SM Object Selection” window, select the appropriate SimulationDefs. In this case just “Default,” then click “OK.”Click “Submit” on the “New SimulationStudyDef” form to create the Simulation Study Def. CREATIN

13、G A STUDY VARIANTThe study variant is the variant that will be used in the simulation generator. If an assembly is being studied, then the study variant will be the top level variant of the assembly.If the appropriate variant has not been created yet, then go to the item SOD that the variant is asso

14、ciated with. In this case use the Neon item and select “New Variant.” Study VariantSimulation Study DefSimulation Defcovered in section 5Simulation studyCREATING A STUDY VARIANT (CONT.)On the “New Variant” form, select the Variant Type in this case “Study Variant.”Since there is already a V1 and V2,

15、 the variant name will automatically update to V3.The Project and Item fields should already be populated.Select a Project Phase and Variant Definition.When finished entering the appropriate information, click “Submit” to create the study variant. CREATING A NEW SIMULATION STUDYFrom the toolbar of t

16、he “Study Variant” SOD, just created, select “New Study.”Study VariantSimulation Study DefSimulation DefSimulation studyCREATING A NEW SIMULATION STUDY (CONT.)For the Study Type select “Simulation Study.”Give the new Simulation Study a name and optionally a description.Select a (simulation Study) De

17、finition, this is the previously created Simulation “Crash Car Body.”The Project field is already filled in for you. Select a Baseline Variant (design variant), in this case “Neon-V3”Select as many Scenarios as applicable, in this case just “Euro-NCAP.”When the form is complete, click the “Submit” b

18、utton to create the Simulation Study.NAMING CONVENTIONSType NameNaming ConventionName ExampleLabel ConventionsLabel ExampleSimulationStudyDefType of Simulation GeneratorNVHnameNVHSimulationStudyType of Simulation GeneratorNVHSubject label- nameVehicle-V1-NVHNames should only define the object itself

19、 and should not attempt to include a parent objects name.The Label attribute will describe the object including all parents.Although labels are often unique, they are not guaranteed to be unique.Labels are automatically generated and can be configured on the Type-Config XML.USING THE SIMULATION GENE

20、RATORSIMULATION GENERATOR SUMMARY The Simulation Generator allows for Fast assembling of many loadcasesSolving of one or more loadcases including assembling of input deck Monitoring and controlling of running jobsThe Simulation Generator defines a matrix usingLoadcase definitions in columnsModel com

21、ponents in rows Loadcase definitions Loadcase definitions are defined and provided by administrator, see SMM 112 for more information.Loadcase definitions are car setup specificA loadcase definition defines required and optional modelsA loadcase definition defines input deck parameter, post processi

22、ng, and storyboardComponent Item DefinitionsAre defined and provided by administratorFor each definition the user has to select a model.Component itemsCan be imported by userMust be classified using existing Component item Def categories (defined by administrator)SIMULATION GENERATOR SUMMARY (CONT.)

23、All component items needed for assembly should be imported and accessible. This can be done with component import. Qualified user role with read permission of foreign data, see SMM 101for more information on roles and permissions. A simulation study must have been defined.PREREQUISITESLoad existing

24、simulation study Check the simulation tab to verify that the correct project, phase, and model have been selected for each simulation.If applicable, in the matrix tab add, or remove simulations. If applicable, in the matrix tab add or remove models from simulation.Use the matrix tab to check the sim

25、ulation and design status icons.Use the design tab to check the variant and model status of each component.Go back to the Simulation tab and click “submit” to the run the simulation. STEPS TO RUN SIMULATION STUDY1. LOAD EXISTING SIMULATION STUDY (CONT.)From the “Simulation Study” SOD, use the Tools

26、menu and select “Simulation Generator”2. CHECK THE SIMULATION TABA simulation Generator tab opens automatically to the Simulation tab. In this tab, check to make sure that for each simulation (in this case Crash/Front/Default) the correct Project, Phase, and Model have been selected for each compone

27、nt. Use the blue arrow next the simulation box to move to the next simulation. 3. USE THE MATRIX TAB TO ADD OR REMOVE SCENARIOSBy entering the simulation generator through the simulation study, the simulations (scenarios) from the study are already listed. In this case just the one scenario “Crash/F

28、ront Default.”To add a scenario: click on the blue “plus” sign and then highlight the appropriate simulation and click “OK.”To Remove a simulation: click the “X” above its name 4. USE MATRIX TAB TO ADD OR REMOVE COMPONENTSThe Matrix tab allows you to define the inclusion or exclusion of model compon

29、ents for each simulation.To Add a new component:Click the blue “plus” sign in the New Model row,Remove component:If the check for a component is red then the component is required and can not be removed. If it is green then you can uncheck the component to remove it from the assembly5. USE THE MATRI

30、X TAB TO CHECK STATUS ICONSSimulation status IconLocated just under the scenario name, indicates if a scenario is ready to run, if it is currently running, or if a run has been complete.Checkbox Status IconsLocated under the scenario icon. Indicates the inclusion of each component of the assembly. T

31、he read checks shown means that this component is required and must be included. A green check would indicate that the components is optional.Design Status iconsDesign Status iconsCheckbox Status iconsSimulation Status iconsThese icons are to the left of the checkbox status icons. They indicate the

32、status of the design variant. Click on one and it will take you to the appropriate itemdef Design tab.5. USE THE MATRIX TAB TO CHECK STATUS ICONS (CONT.)TypeDescriptionRed DotThis Scenario is not ready to be submittedGreen DotThis Scenario is ready to be submitted.Blue DotThis Scenario is currently

33、runningGreen Hollow DotThis scenario has been run and is completedSIMULATION STATUS ICONsimulation status icon5. USE THE MATRIX TAB TO CHECK STATUS ICONS (CONT.)TypeDescriptionBlankThis component cannot be included for the particular simulation UncheckedThis component will not be included for the pa

34、rticular simulation. The user may click on the checkbox and include it.Red CheckThis component must be included for the particular simulation. The user will not be able to un-check it.Green check This component will be included for the particular simulation. Green indicates that it is a “default on”

35、 type component. The user may click on the checkbox and then it would not include it.Yellow Check This component will be included for the particular simulation. Yellow indicates that it is a “default off” type component. The user may click on the checkbox and then it would not be includedRed “X” Dot

36、There is an issue with the related simulation. Even though a design has been selected, there is either no matching model or multiple matching models. CHECKBOX STATUS ICONS (located below the simulation status icon)5. USE THE MATRIX TAB TO CHECK STATUS ICONS (CONT.)TypeDescriptionRed DotThis Design i

37、s not yet assigned to a particular Variant object.Green DotThis Design is assigned to a Variant.Red “X” DotThis Design is locked. Once a simulation is submitted, users are prevented from making changes and assigning different Variants to rows. DESIGN STATUS ICONSdesign status icons6. USE THE DESIGN

38、TAB TO CHECK VARIANT AND MODELS STATUSThe design tab shows the status of the variant and models. In this case, for the body component both the variant and model status is the latest.To see the status of the next component use the blue down arrow next to the item definition box. At the bottom, “Avail

39、able Models” shows a list of all models associated with the selected itemDef. 6. USE THE DESIGN TAB TO CHECK VARIANT AND MODELS STATUS (CONT.)The grey arrow is another way to easily step to the next item definition.The grey arrow (with a vertical line) previous allows you to move to the next or previous simulation. 7. RUN THE SIMULATIONGo back to the