Function Type: Series
When you set Function Type to Series, complete the associated text boxes as shown in the table.
The Series function is:
direction*(mean_value-
i=0n(magnitude[i]*sin(order[i]
i=0n(magnitude[i]*sin(order[i]*order_tracking+phase_shift[i])))
where order_tracking is angle_multiplier*ABS(AZ(i, j))
For the option: | Do the following: |
|---|---|
Input Type | Select one of the following: ■Property File - Adams Engine takes the values for the Fourier Sine series from a property file. ■User-Entered - Enter the values for the Fourier Sine series. |
If you set Input Type to Property File, Adams Engine displays the following options: | |
Harmonic Series File | Specify the property file that contains the function series data for the dyno. The file contains the information needed to specify a Fourier Sine series (mean value, order numbers, magnitudes, phase shift values, and an angle multiplier). Tips on Entering Object Names in Text Boxes. |
Direction | Specify if the function should work clockwise or counterclockwise around the z-axis of the dyno. |
If you set Input Type to User-Entered, Adams Engine displays the following options: | |
Harmonic Series File (optional) | Enter the name of a new or existing property file. When you specify a file name, Adams Engine displays the database path that it will use to save the file. Adams Engine always saves a file in the default writable database. |
Mean Value | Enter the mean value of the Fourier Series. |
Order, Magnitude & Phase Shift | Select to display the curve editor, where you can specity the order number, magnitude, and phase. |
Order Number | Enter the order numbers that should be used in the Fourier Series. |
Magnitude | Enter the magnitude for each order of the Fourier Series. The number of entries should match the number of entries in the Order Number text box. |
Phase Shift | Enter the phase shift for each order of the Fourier Series. The number of entries should match the number of entries in the Order Number text box. |
Angle Multiplier | This number is multiplied to the angle-measurement variable, and will therefore scale the angle input to the function. For example: If you measured the torque at the alternator pulley versus crankshaft angle, you must enter the ratio between the pulley pitch diameters. |
Direction | Specify if the function should work clockwise or counterclockwise around the z-axis of the dyno. |