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Abdessamed

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  1. Jackie liked a post in a topic by Abdessamed in Python Interface   
    Hi,
    You will find attached PDF files for learning how to use a python script in Flux.
    Best regards.
    Altair_Memento_python_GB-v2.1.pdf Altair_Memento_pyFlux_GB-v2.2.pdf
  2. Mostafa Ahmadi liked a post in a topic by Abdessamed in PM Loss Calculation   
    Hi,
    In Flux 3D when you use a solid conductor region, you force the mesh to second order. This means that the number of nodes increase. When the number of nodes increase the simulation time increase. You can check the number of nodes when you use the magnetic non conducting region and solid conductor region, you will find that the number of nodes it is not the same.
    You can use the computation distribution to decrease the simulation time.
     
    Best regards.
  3. Andoni Garcia liked a post in a topic by Abdessamed in Can't create Electric Loop Cut   
    Hi,
    A matrix is singular if and only if it has a determinant of 0. This means that When Flux try to solve the equation, found an error because the determinant is equal to zero.
    About the fact Flux can’t solve the mesh problem, there is not a command which allows Flux to correct the mesh in the event of a mesh defect.
    If you want to see the mesh defects, you can do it once the mesh is done. Go to the:
    General data
    Select Mesh
    Select mesh defect >> right click, add to visualization
     
    Best regards.
  4. Andoni Garcia liked a post in a topic by Abdessamed in Can't create Electric Loop Cut   
    Hi,
    Analysing your project, you don’t need to use a cut. You don’t need to create a cut because there is air gap between the different parts of the device. This means that it doesn’t form a closed loop. See attached PDF file for more details.
    The message that you get when you d heck physics, is a warning. this don't stop you to solve the project.
     
    Best regards.
    Electrical_magnetic_cut.pdf
  5. sta98 liked a post in a topic by Abdessamed in AFPM running in .FeMT   
    Hi,
    Sorry for this misunderstand, I mean the Flux project and not the FeMT project. I still working on it to find why we can’t solve it.
    Sorry for the delay.
    Best regards.  
  6. sta98 liked a post in a topic by Abdessamed in AFPM running in .FeMT   
    Hi,
     
    I reached to run the simulation without any error message. I used the project that you send me. The simulation is still running.
     
    I will keep you informed.
     
    Best regards.  
  7. sta98 liked a post in a topic by Abdessamed in AFPM running in .FeMT   
    Thanks for the sharing. one comment about the magnet region, if you want to compute the losses inside you need to use a solid conductor region. the second point, in the case of FeMT you need a lot of memory.
     
    I will check and keep you informed.
     
    Best regards.
  8. Imanol liked a post in a topic by Abdessamed in Export 3D Mesh from flux and import elements of a face in 2D   
    Hi,
    Regarding the mesh import option in Flux 2D, I think the best way to use a 3D mesh in 2D project is to solve the 3D project (knowing that the project 3D contains surface regions on which you want to export the mesh).
    To do it, one the project is solved:
    In data exchange, select export quantity and after select export spatial quantity and formula starting from different types of supports Flux open a window (see attached PPT file) The PPT file explain the different steps you need to follow to export the mesh.
    Once the file is exported, you open a new Flux 2D project, form project >> select import >> import mesh.
     
    Hope this will help.
    Best regards.
    support.pdf
  9. Balaji Viswanadh G liked a post in a topic by Abdessamed in Loop area when a conductor in finite element space is closed with circuit element   
    Yes , I used Flux 2019.1.1 to create the non meshed coil. can you update you Flux?
     
    best regards.
  10. Balaji Viswanadh G liked a post in a topic by Abdessamed in Loop area when a conductor in finite element space is closed with circuit element   
    Hi,
    You are welcome. I managed to create a python script allows to create the new mesh coil. The aim is to show how to create a non-meshed coil. you can also configure it by creating geometric parameters.
    You will find attached the python script.
     
    Best regards.  
    Create_Non_meshed_coil_Flux_2018.py
  11. Balaji Viswanadh G liked a post in a topic by Abdessamed in Induced voltage calculations   
    You are welcome.
    Best regards.
  12. Balaji Viswanadh G liked a post in a topic by Abdessamed in Loop area when a conductor in finite element space is closed with circuit element   
    Hi,
    Sorry I misunderstood the question. In your case you need to create a non-meshed coil to represent the loop area. About the dimension of the non-mesh coil, it’s up to you to decide on the dimension. The best way to see the effect of the loop area, is to parametrize your non mesh coil and change the length of this non mesh coil to see the effect.
    Hope this will help.
    Best regards.
  13. Balaji Viswanadh G liked a post in a topic by Abdessamed in Induced voltage calculations   
    Hi,
    You will find attached a PDF file explain the principal of the connection.
    Hope this will help.
    Best regards.
    support.pdf
  14. Balaji Viswanadh G liked a post in a topic by Abdessamed in Induced voltage calculations   
    Hi,
    This connection it will be automatically. I mean when you assign the born (input/output) of your solid conductor, you select the solid conductor (equipotential at terminals).
    Best regards.
  15. Balaji Viswanadh G liked a post in a topic by Abdessamed in Loop area when a conductor in finite element space is closed with circuit element   
    Hi,
    In Flux 3D when you create a solid conductor you need to assign a terminal to solid conductor. To do it:
    Physics >> assign terminals to solid conductors
    You select the solid conductor (used in the circuit).
     
    With you make a connection between the volume region (solid conductor) and the circuit component.
    Best regards.
  16. Balaji Viswanadh G liked a post in a topic by Abdessamed in Induced voltage calculations   
    Hi,
    From the circuit you can get the equipotential terminals and see the connection between.  To do it, select one line in the electrical circuit (place the cursor on a line) you will get the number of the equipotential.
    Best regards.
  17. Balaji Viswanadh G liked a post in a topic by Abdessamed in Induced voltage calculations   
    Hi,
    To compute the induced voltage and current you need to use a solid conductor region to represent your conductor. For the material that you will use you need to put the value of the resistivity. In Flux supervisor example, there are some cases (for example IPM brushless motor, case: motor performance at constant speed) we use a solid conductor region.
    If you use a solid conductor region you need to use a transient magnetic application.
     
    Best regards.
  18. ahofferg liked a post in a topic by Abdessamed in Mesh Information   
    Hi,
    The best way to export you the mesh and the nodes information you can select:
    Export mesh to DEC file
    Export mesh to PF3 file
     
    Best regards.
     
  19. Andoni Garcia liked a post in a topic by Abdessamed in Coil Construction in 3D   
    Hi,
    When you extrude the faces you will create a volumes, you don’t need to assign any face region just you need to create a volumes region and assign it to the volumes. If you use the same material for all the volumes you need just to create one volume region and assign it to the volumes.
    To do it :
    • Click on the physic (in the top, not in the data tree)
    • Select volume region
    • Select assign region to volumes
    But if you have several region you need to create several volume regions and assign it for each volumes.
    To see the losses and the proximity effect, you need to use a solid conductor region for each volume. Don’t forget to assign the internal and external terminal for each solid conductors.
    To o dit :
    • Click on the physic (in the top, not in the data tree)
    • Select assign terminals to solid conductors
    Best regards.
  20. Mandy Kaiser liked a post in a topic by Abdessamed in From Flux to FluxMotor with Geometric Parameters   
    Hi,
    When you create your part starting from Flux, the more drawback of this method is that your part is not parametrized. For this reason you don’t get any parameter on yyour excel file.
    If you want a parametrized part, you need to create your own excel file using an excisting part (issue from FluxMotor).
    Attached an PPT file explain how to create  a parametrized part in FluxMotor.
    Best regards.
    Create_a_magnet.zip
  21. RAVITEJA_028 liked a post in a topic by Abdessamed in doubt about stranded coil   
    Hi,
    In the case of stranded coil in Flux 2X, if you don’t put any information about the material, this means that the permeability that you use is 1 (in other hand, thsi means that you use air as material).

    Best regards.
  22. RAVITEJA_028 liked a post in a topic by Abdessamed in How to compute torque on a brushless with sensor   
    Hi,
    To compute the torque in Flux using a sensor you need to create a sensor. To do it:
    In parameter/quantity j, create a new sensor Type of sensor: predefined, magnetic torque Rotation axis:     Direction: parallel to oz Pivot point (0,0) Computation domain: select a face region. Other way to compute the torque is to draw a 2D curve of torque. To do it:
    Curve 2D curve (I/O parameter) >> new >> mechanical set >> select electromagnetic torque To use this data in Simulink, you can export this curve as txt file. In you Simulink model you can use a look up table to read this txt file.
     
    Hope this will help.
    Best regards.
  23. RAVITEJA_028 liked a post in a topic by Abdessamed in How to analyse the starting of SRM?   
    Hi,
    To find the value of the data that you need to use, you can use  the following formulas :
    For example for the inertia :  J=(1/2)*M*r² where M is the masse and r is the rayon.
    For the friction : F=(torqur/Speed).
    For the velocity and speed a t=0 you  keep the initial value zero.
    Best regards.
  24. RAVITEJA_028 liked a post in a topic by Abdessamed in Modelling of pmsm with foc using simulink   
    If I understand you want to take into account, the load and see the starting of the motor? If it is the case, you can use “coupled load).
     
    Best regards.
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