Using Datasets to Define Transient Parameters

Some parameters for Icepak thermal boundary conditions and design settings can be assigned a transient value using a dataset. For a complete list of transient parameters, see Transient Thermal Properties Dependency. You can access the Add Dataset dialog two ways:

• Create a dataset prior to defining thermal boundary conditions or design settings by adding a design dataset. See Adding Datasets for more information.
• When defining thermal boundary conditions or design settings, enable the transient option for the parameter and define the dataset. See Defining a Dataset for Transient Parameters for more information.

Defining a Dataset for Transient Parameters

1. In the boundary condition or design settings dialog box, enable the check box next to the parameter.
2. Select Transient from the drop-down list and click Edit.
3. In the Advanced Time Variations dialog box, select Piecewise Linear from the Time Variation Function drop-down list.
4. Specify a value for S0, which is the multiplier value applied to the variable parameter defined in the piecewise linear dataset (y-axis value).
5. From the Variation drop-down list. select Edit.
6. In the Datasets dialog box, click Add > 1D Dataset.
7. In the Add Dataset dialog box, enter a Name.
8. In the Coordinates area, click the X column header and select Time and then click it again and select a unit of time.
9. Click the Y column header and select a parameter category (e.g., Power) and then click it again and select a unit for the parameters (e.g., W).
10. In the X and Y columns enter the values for time and the time-dependent parameter.
11. Click OK to save the dataset.
12. In the Datasets dialog box, click Done.