The spline function lets you define a motion generator by specifying discrete displacement values at specific points in time. During the simulation, the COSMOSMotion Solver interpolates the discrete points using one of two types of spline, which results in a smooth, continuous curve.
When the Spline selection is active, the dialog box contains the following:
|
X Units |
Enter time values separated by commas. For example: 0.0, 0.1, 0.2, 0.3, 0.4, 0.5 |
|
Y Units |
Enter data values separated by commas. The data values must correspond to the time values, and the same number of values must be present. |
|
Data ID |
If a spline function has already been defined, the same function can be applied to this motion by selecting the ID. The new selection creates a new spline. |
|
CUBSPL and AKIPL |
Select the type of spline interpolation to use: CUBSPL or AKISPL. |
|
Load from File |
Select to load data point values from a file. The file should contain one data point per line. The data point consists of two values: the time and the value at that time. Use commas or spaces as separators between the values. |
You can create more than one set of data points and reference them between motions and forces. You can control the set of points that is being applied using the Data ID list. The first time you create a curve, the Data ID list is set to NEW. If you create more than one set, or modify existing sets, you can select from existing sets of data points or create a new one.