Use these for a Nonlinear Transient Heat Transfer analysis or an Explicit Quasi-Static analysis.
To set up time steps, right-click on Time Step or Quasi-Static Setup under your Subcase in the Autodesk Inventor Nastran tree and select Edit.
- Name: Names the time step.
- ID: The ID of the property is automatically updated by Autodesk Inventor Nastran, similar to Materials.
- Interval Listing: System generated, based on the interval setup.
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Solution Settings: (for Nonlinear Transient Heat Transfer analysis only)
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Step Method:
- ADAPTIVE: This setting tells the solver to use an adaptive time step algorithm that determines the time step based upon changes in the solution.
- CONSTANT: This setting tells the solver to use a constant interval time step.
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Step Method:
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Interval Setup:
- Cycle Dependent: Choose to make one of the following three parameters dependent upon the other two. This option activates two input fields and makes the third unavailable. It provides flexibility in defining the interval. Choose the calculated (cycle dependent) value and input the other two.
- Time Step: Duration of the time step.
- Number of Time Steps: Number of time steps to be performed for the interval.
- Duration: Duration of the interval.
- Skip Factor (for output): Limits the number of output sets. Using a skip factor of 2 will give you 1 output set for every two time steps.
- Cycle Dependent: Choose to make one of the following three parameters dependent upon the other two. This option activates two input fields and makes the third unavailable. It provides flexibility in defining the interval. Choose the calculated (cycle dependent) value and input the other two.