Differential
Tools → Curve Manager
Create or modify a Differential Property File (*.dif). Learn about differentials.
You can create a linear viscous differential (torque vs. angular velocity) by entering a slope, or define any torque-velocity relation using a mathematical formula. See Modifying Curves.
The following table explains the default options that are common to both the plot and table Curve Manager views. Learn about the Curve Manager.
For the option: | Do the following: |
|---|---|
Slope | Enter the slope of the curve that defines the velocity-force relation. |
Limits | Enter the upper and lower x values for the curve. |
Points/Segs | Specify the number of points or segments for the curve. You can: ■Enter the number of points or segments. ■Right-click  and select  to create a function expression that defines the vertical (y) values in terms of the horizontal (x) values. You can use only one independent variable (x) to describe the functional relation. You can use any valid FORTRAN mathematical operator, such as SIN, **2, and so on. |