Driven and Driving Parameters
A parameter can be either a driven or a driving parameter. This distinction is an important one for Creo Simulate, where certain modeling entities require constant values and others require variable values. In planning your Creo Parametric parameters, bear the following Creo Simulate entity requirements in mind:
• For material properties — If you plan to use Creo Parametric parameters to define the characteristics of your material properties, you can use either driven or driving parameters. The difference between the two approaches lies in how directly you want to control the characteristic in question. For a complete discussion of using Creo Parametric parameters as part of a material property definition, see Creo Parametric Parameters.
• For measures — If you plan to use parameters as measures, you must select parameters that have a variable value in Creo Parametric.
• For design variables — If you plan to use parameters as design variables, you must select parameters that are defined as real numbers.
If you plan to use Creo Parametric parameters in Creo Simulate, you may find it handy to create all parameters before you enter Creo Simulate. If you are creating parameters through the > command, be aware that Creo Simulate does not accept parameters that are created using Integer or String as a parameter type.
Be aware that many modeling entity names are limited to 16 characters. You can use alphanumeric characters and underbars only. Names must always start with alphabetic characters. Because Creo Simulate uses the Creo Parametric parameter names as design variable and measure names, always observe these naming conventions when creating Creo Parametric parameters. If your Creo Parametric parameter name is too long, the software will truncate it.
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Creo Simulate does not allow you to define Creo Parametric parameters from the dialog boxes you use to create measures.
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