How to define a parameter from a Solution Combination in Mechanical

Solution Combination does not allow to define results values as output parameters. However, it does not mean that we cannot define these output values as parameters for a parametric study.

The idea would be using a Python Code object in the upstream simulation which forces Solution Combination to be evaluated and then take the value that user is interested in.

Here the code used in Python Code:

SolutionCombination = ExtAPI.DataModel.GetObjectsByType(DataModelObjectCategory.SolutionCombination)[0]
SolutionCombination.EvaluateAllResults()
StressValue = SolutionCombination.Children[0]
this.GetCustomPropertyByPath("Parameters Solution Combination/Maximum SEQV").Value = StressValue.Maximum.Value

(Be aware that we need to activate an output parameter in Property Provider).

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Comments

James Derrick

hi @Javier Vique I've added a codeblock to your post text, but I was wondering what the this object is? Where does it come from? This could be an ACT thing I'm not aware of.

Pernelle Marone-Hitz

hi @James Derrick . this is a helper argument of the function that is called in the callback of the Python Code object, and refers to the datamodel object instance of the python code object you are currently editing in the tree. Indeed, this is specific to Mechanical scripting.

Abel Ramos

For completeness of this example, I'm adding the "Property Provider" needed together with the code presented in this solution:

"""
def reload_props():
this.PropertyProvider = None

# comment the following return to allow the rest of the function definition to be executed and add properties
#return

"""
Some sample code is provided below that shows how to:
    1. Create an instance of the Provider. The Provider class is used to add custom properties to the details.
    2. Use the Provider instance to add custom properties.
    3. Configure those custom properties.
"""

# Create the property instance
provider = Provider()

# Create a group named Group 1.
group = provider.AddGroup("Parameters Solution Combination")

# Create a property with control type Expression and a property with control type Double, and add it to the Group 1
double_prop = group.AddProperty("Maximum SEQV", Control.Double)
double_prop.CanParameterize = True
double_prop.ParameterType = ParameterType.Output

# The valid range set here is used by the IsValid handler in the Provider class, please look at the class definition above.
# If interested in the implementation, please look at the class definition below
this.PropertyProvider = provider

"""