[Getdp] Machines Tutorial 3 kW Motor Modification issue

[Mikail Ansari]

Good day

Thank you for the feedback.  So the characteristic lengths need to be finer than at least 1/3rd of the air gap?


I will try to send the files as soon as I can.

Kind Regards


From:"Ruth Vazquez Sabariego" <ruth.sabariego at esat.kuleuven.be>
Date:Sun, 22 Nov, 2015 at 11:18
Subject:Re: [Getdp] Machines Tutorial 3 kW Motor Modification issue

The characteristic lengths of the limiting lines for the moving band on the stator and rotor side should be fine enough.

For the time being there is no check at the beginning of the computation, that is in our TODO list.

If you send us your files, we can have a look and see if the problem can be easily solve.


Best regards,

Ruth 



—
Prof. Ruth V. Sabariego
KU Leuven  
Dept. Electrical Engineering ESAT/Electa
http://www.esat.kuleuven.be/electa







On 22 Nov 2015, at 04:06, Mikail Ansari <ansarimikail at yahoo.com> wrote:


Good day

I am having an issue with modifying the 3 kW Induction Motor Rotor in the Machines example.

Making most parameter modifications seems fine, such as shaft, inner and outer rotor radii.


I seem to be getting a moving band error, number of elements not matching.


The issue appears to be in Time domain mode when I modify the rotor bar parameters.

The h2, Rsl, and the coordinates Points dp+6, and Points dp+8 on the moving band, adjusting the characteristic lengths on both the Stator and Rotor.


It appears to run initially but it seems to have an error, a quarter way through the simulation.


I am not sure if there are, specific techniques to specifying the moving band characteristic lengths so that the meshing always matches?  An air-gap dependent factor?


Kind Regards

Mikail


_______________________________________________
getdp mailing list
getdp at geuz.org
http://www.geuz.org/mailman/listinfo/getdp


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.geuz.org/pipermail/getdp/attachments/20151122/282f5872/attachment.html>