Using Creo Product Insight with Creo Simulate

You can use Creo Product Insight to run analyses on the following types of assemblies:

• Design Assemblies that are “instrumented” by adding physical sensors to them so that they can read sensor data from the real world.

• Instrumented assemblies that are created from existing design assemblies without modifying the original assembly. Instrumented assemblies can be created for the following purposes:

◦ As a digital twin of products that are already in the field and for which you want to add sensors and input real world data from the field.

◦ For smart connected products that already have sensors as a part of the assembly design.

When you use an instrumented assembly, you can add loads and constraints, but no other object types. You can create and run all types of analyses except sensitivity and optimization studies.

With the Creo Product Insight you can define and run Creo Simulate analyses using the following steps:

• Use Creo Product Insight to “instrument” an existing design assembly by adding physical measured sensors to the assembly or create a new instrumented assembly from an existing design assembly and add sensors to it.

• Create an analysis feature to access the resultant measure parameters and view the results using calculated sensors.

• Run the simulation analysis using data from a .csv file. Data from can be input in the form of time “slices”—that is the value of several physical quantities can be read into Creo Simulate, from different physical sensors for a specific time stamp.

1. Create a new instrumented assembly using an existing design assembly, or open an existing design assembly in Creo Parametric and perform the following steps:

a. Add measured physical sensors for physical quantities that you want to measure at specific points in the assembly.

b. Create parameters to read the value of the physical quantity that will be input from the real world via the sensor.

For example, you could add a sensor that measures force at a particular point.

To use sensor parameters as loads and constraints in a Creo Simulate analysis you need to create load and constraint parameters and link these parameters to the physical sensors in your model.

c. Assign the quantity that you want to measure (using the sensor) as the Unit Quantity for that parameter. For example, for a sensor that measures force you must create a parameter (named Load1 for example), with a Unit Quantity of force, and units of force Newton.

When using relations in a design assembly, ensure that the

button is selected on the Relations dialog box—This ensures that relations use the same units that are defined for parameters and dimensions.

d. Link the physical parameters to the sensor. To do this carry out the following steps:

b. For a parameter, click the link under Link to Model and link the measured sensor parameter to the model. The Add Link to dialog box opens.

d. Select Assembly for the Look In list. Select the sensor parameter that you created to measure the physical quantity — for example, Load1 for force.

e. Create calculated physical sensors to measure the quantities that you want to calculate for the Creo Simulate analysis — For example create physical sensors to measure Von Mises stress at a point or displacement at a point.

2. Open the instrumented assembly in Creo Simulate and perform the following steps:

a. Assign a material to the model.

b. Define loads in your model. Assign a sensor parameter that you created in Creo Parametric as the magnitude of the load—for a force load this would be a sensor parameter with a Unit Quantity of force and units of force—for example, Load1.

c. Create constraints in your model. If you want to use a physical quantity such as displacement in your model then assign a sensor parameter that measures displacement in your model. You must have created a parameter with Unit Quantity displacement, and units of displacement, for example—cm. This parameter must be linked to the sensor in your model that measures displacement.

d. Create measures in your model to measure resultant quantities in the analysis. For example, if your load uses a force parameter, you can create measures for stress and displacement at different points in your model.

e. Create an analysis. Close Creo Simulate.

f. Use the Creo Behavioral Modeling Extension to run the analysis defined in Creo Simulate.

Click Analysis >

Simulate Analysis. The Creo Simulate Analysis dialog box opens. Select the analysis that you created in Creo Simulate.

g. Run the analysis.

h. When the analysis completes, click Add Feature on the Creo Simulate Analysis dialog box to create an analysis feature on the Model Tree. This analysis feature contains all the measures that are calculated when the analysis is run.

i. To view results, use the calculated physical sensors that you created in Creo Parametric.

j. Link the calculated sensor parameters to the analysis feature parameters. To do this carry out the following steps:

b. For the sensor that you want to link to a parameter, click the link that reads “UNDEFINED” under Link to Model. The Add Link to dialog box opens.

d. Select Feature for the Look In list. Select the calculated measure parameters from analysis feature—for example measures for stress and displacement at different points in the model.

3. Use sensor data from a csv file, to vary the parameter values of a sensor. For a model, you can select a particular time slice (data available for a particular time step) to vary the value of a quantity in Creo. To input data carry out the following steps:

a. Click Sensor > View Data and select Run or Run All.

b. Note that each time you select a different time slice of data, you must regenerate the model in order that different parameter values are assigned and you can view updated calculated results for the new sensor input values.