Axial Slice Model

The standard Motor-CAD model uses a single node along the axial length of the active section of the machine. This has been found to be an accurate method for machines which do not have a large temperature drop across the active section.

The multiple axial slice model is designed for some larger machines where there may be a significant axial temperature gradient along the active section of the machine, particularly if there is a cooling fluid flowing through the machine.

The user can select the number of axial slices to use in Models [Settings]:

The single slice is normally used unless there is a significant axial temperature gradient along the active section. Different number of slices can be used to check if any difference is seen. The advantage of the single slice is the model is easier to understand and quicker to calculate.

The axial model circuit and results can be view in the Schematic as shown below. The slice shown can be selected using the slider.

The temperatures can also be viewed in the Temperure Display:

The results can also be viewed in the Output Data Sheet:

The graphs show how the temperatures vary throughout the length of the machine:

Test results can also be shown the axial slice graph. Temperature values can be entered in the temperature validation section as shown below:

These results are then displayed in the axial slice graph to help in comparing test data against the model results as shown below:

See also Models [Settings].