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Maxwell 3D (ANSOFT)

  1. May 23, 2008 #1
    Dear all,
    I'm a new user and I like to exchange information about the use of this tool.
    From my point of view tool using should be done by suitable tutorial or guide but for this type of software I was unable to find anything useful in that sense.
    I'm a electronic engineer and like to know how I can model simple circuit from scratch, first example should be sinusoidal generator, transformer windings and a resistive load connected on the secondary windings of the trasformer.
    This is my first problem, I've no problem in writting a very detailed tutorial how to getting started with such problem but I need some hint from experienced user to do such task, if anyone like to help me in that sense I'll appreciate it.
    Thanks in advance

    Regards
    Grinch
     
  2. jcsd
  3. May 23, 2008 #2
    Well, I've started the design.
    At now my idea was set a simple circuit into the Maxwell Circuit Editor and then make the magnetics componenents into the Maxwell 3D simulation evironment.
    I've do this step:

    1. draw the circuit
    2. set the component name
    3. export the circuit netlist

    I've attached the screenshot of the circuit with name circuit-sch.jpg.
    Just some notes about it, LL1 and LL2 are winding elements and will be used to join the circuits with the simulated elements inside Maxwell 3D (or this is what I'm supposing... :-)).
    Into the Maxwell 3D create a new project and import the circuit as external excitation, look at the attached image external.jpg, then press the button Import Circuit and select the file with extension .sph.

    Now to make the join just drawn a 3D inductor, set material as copper, and then set up on the two end a coilterminal then select the Excitations o the project panel and then Add winding, use a name equal to the first winding present into the circuit (the trasformer primary) the winding type as to be set to External.

    Well at now I don't know if this is a exact way to do it I hope yes, let us know the final result... :-)

    Cheers
    Grinch
     

    Attached Files:

    Last edited: May 25, 2008
  4. Jul 22, 2008 #3
    hello

    I need a tutorial or user manual of maxwell 2d 3d

    please!!


    Hola yo tambien necesito un manual o guia de ususario para maxwell 3d

    avisenme algo

    Adriana
     
  5. Jul 22, 2008 #4
    hello

    I need a tutorial or user manual of maxwell 2d 3d

    please!!


    Hola yo tambien necesito un manual o guia de ususario para maxwell 3d

    avisenme algo

    Adriana sreadriana@yahoo.com
     
  6. Jul 26, 2008 #5
    look here -> C:\Programs\Ansoft\Maxwell11\Help
     
  7. Nov 27, 2008 #6
    Hello everyone

    I am Working with Maxwell 3d, to simulate electric machines, I have information about a tutorial, my email is sreadriana@yahoo.com

    I have doubts about the simulation of a squirrel cage motor, in terms of meshing.

    Adriana
     
  8. Aug 19, 2010 #7
    Hello everyone ,

    Can anyone help me to simulate electromagnetic generator using ansys or ansoft .. thanks in advanced
     
  9. Jun 5, 2011 #8
    Hello all,
    I know that is no right topic but I need some advice.
    I make simulation of the coil with 5 layers and 354 tuns. When simulation finished there isn't any results. The message is: "There is no solution data to display".
    I try five and more times to simulate this model, but results is same: "There is no solution data to display".
    I use Maxwell 13 for 3D modeling of my coils.
    Thank you in advance!
     
  10. Jun 29, 2011 #9

    gerbi

    User Avatar
    Gold Member

    Hi
    ..are You using transient solver ? if so, always remember to save results (Analysis/Save Fields -> create list of time moments for which you want to save solutions for further view) You can switch between time moments thru small icon ("Time=" by default it's in left bottom corner of modeler window). Hope that helps, if not feed me with some more details
    Cheers
     
  11. Oct 24, 2011 #10
    hi;
    i want to design to concentric cylinders ant excite the inner one with a sin current and measure the voltages on the surface of the outer one.i really need your help.
    thank you.
    fatima;
     
  12. Oct 24, 2011 #11

    gerbi

    User Avatar
    Gold Member

    Hello

    Would it be some kind of air transformer ?
    1. Select Transient solver, draw Your geometry (create cylinders -> substract them).
    2. Reduce the geometry to half of cylinders (You'll need faces to attach coil terminals). How ? Use split function on geometry
    3. Set up proper materials for Your cylinders.
    4. Create "region" that will connect magnetically all solution domains (draw->region)
    5. Now select the faces one by one and create coil terminals (select faces -> left click to select face -> right click and assign coil terminals. Remember about proper names and direction of the terminals, I mean in-out. like the current flows).
    6. Now go to 'excitations' in Project manager. Create two windings and attach coil terminals to them. In windigs excitations select solid or stranded (solid conductor or parrallel conductors) and "external" type of winding - it means it will be connected with external electric circuit.
    7. Launch Maxwell Circuit Editor. Create proper circuit. Remember about naming correctly Your windings, assigning current source and zero point to each independent circuit. Add some amper-meters and voltage-meters to circuit.
    8. Save circuit and export "net list". Go to Maxwell and import it (Maxwell-> Excitations->external circuit->edit external circuit->import circuit).
    9. Set up "solution setup". Choose step interval and stop time (depends on frequency You have selected for Your current source). At least 20 steps for period will be fine. Then go to next tab - "save fields". Choose the same time step and stop time (watch units) and add this to list.
    10. Validate Analysis and solve it.
    11. Go to results in "project manager". Create transient report-> rectandular plot and select quantities You'll like to observe.

    Hope that helps.. if there are any errors write me a PM.

    Anyway, Google for: "Getting Started with Maxwell Transient"
     
  13. Nov 6, 2011 #12
    hi;
    thank you for your help;it was really helpful and i could design the cylinders.i set 2 circles as excitations and the face of cylinder as winding and then i assigned the excitations to the winding.when i checked the validation of analysis there were 2 warnings:
    [warning] Eddy effect settings may need revisiting due to the recent changes in the design. The default value will be used for the object if the value is not specified.
    [warning] Currently no mesh operations or data link have been created for the setup(s): Setup1. The initial mesh will be used. The initial mesh is usually not fine enough to achieve an accurate solution.
    and i cannot see any results in the quick report.
    actually i want to excite the cylinder with a desired current and measure the voltage on a specific point.now i have these problems:
    1)how can i import a desired current(data) from an external file(as an excitation)?
    2)what kind of data(file format)is supported by maxwell?
    3)haw can i export the voltages from a specific point on the cylinder?
    4)where can i watch and save the voltages (as data)?
    sorry for my english;
    thank you;
     
  14. Nov 6, 2011 #13
    no this is not an air transformer,i want to model a nerve in this way.
     
  15. Nov 7, 2011 #14

    gerbi

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    Gold Member

    Eddy effect.. right-click on Excitations-> set eddy effect in Project manager. Here You can select to turn on or off eddy effects. I have no idea what would be fine in this kind of design. Selecting all would be best choice.. I guess.

    well.. that's the hardest problem - the mesh. In transient solver You must manually modify mesh (selecting faces or volumes -> right click -> mesh operation). I have no idea about phenomena that might occur in this kind of simulation - so I simply don't know what kind of mesh (surface or inside thicken, layer mesh, impedance boundary + exclude inside the conductor) would be best here.

    well.. double check the setup

    as I've mentioned in my previous post - use Maxwell Circuit Editor. Create Source and connect it to a winding. Add a resistor (it won't work as source+winding setup) and a grounding to the schematic. Export it to Maxwell (how? ->my precious post).

    It gets tricky here.. You'll need to create a point on the model where You want to watch the voltage and use Maxwell Calculator (Maxwell -> Fields -> Calculator). How to use Calculator ? Select Qty-> Voltage -> Select geometry -> Calculate or Evaluate it. You'll get a value in Volts. But that's for a specific time moment selected in the main window (in one of the corners of main window). To create a plot of voltage change in time You'll need to create a script (but that's another big topic). Why You won't create a plot on the surface where You want to observe the results ? (plot will be for a specific time moment too, but You can create a animation frame by frame).
     
  16. Nov 10, 2011 #15
    hi;
    thanks for your helps gerbi ;i could finally create the winding and excite it by a sin current source and i was able to see the input current as result but i have still some problems:
    1)i don't know how i can create an external source(i want to load the source with a special type of signal that i have it as data).
    2)when i want to use field calculator there is no voltage option in Qty.then how can i measure the voltage on the surface of the cylinder?
    thank you.
     
  17. Nov 11, 2011 #16
    Dear all
    I am new to this forum.
    Just started learning Maxwell 2D and 3D.
    I want to define complex permeability in x,y and z direction.
    I am using Maxwell 14 and the simulation mode is eddy current mode.
    Is it possible?
     
    Last edited: Nov 11, 2011
  18. Nov 14, 2011 #17

    gerbi

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    That wouldn't be easy. In my practice I haven't used sources based on data.
    In Circuit Editor, as You have may noticed so far, there are sin, DC, pulse, linear, frequency modulated, piecewise, expotential current/voltage sources. You can try to assemble Your signal from avaible sources... if it's possible.

    You can't ;) there is voltage possibility as Qty in static solver, no such in transient. Again, never tried to solve this kind of problems with Maxwell.
     
  19. Nov 14, 2011 #18

    gerbi

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    Gold Member

    Hi

    in EC solver only linear permeability is allowed. In Transient solver You can use linear, non-linear, anisotropic (x-y-z) permeabilities.
     
  20. May 18, 2012 #19
    hello everyone ;


    i vant to solve that power on coil and with transient or magnetic analyses.
    i dont know have i calculate the power or resistance on coil???

    please help me;

    regards....
     
  21. May 20, 2012 #20

    gerbi

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    Hi

    What power you want to calculate ? Real power ?

    Rethink this: is there really a need to use Maxwell to calculate power or resistance of coil ?
    Maybe it's faster to use conventional methods ?
     
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