Getting Started with Maxwell 3D (ANSOFT)

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Discussion Overview

The discussion centers around the use of Maxwell 3D software for simulating electrical circuits and electromagnetic devices. Participants seek guidance on modeling specific components such as transformers, coils, and electric machines, as well as troubleshooting simulation issues. The scope includes both theoretical and practical applications, with a focus on user experiences and challenges encountered while using the software.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant expresses a need for tutorials or guides on using Maxwell 3D, specifically for modeling a sinusoidal generator and transformer circuits.
  • Another participant shares their approach to setting up a circuit in the Maxwell Circuit Editor and importing it into Maxwell 3D, but expresses uncertainty about the correctness of their method.
  • Multiple requests for user manuals or tutorials for Maxwell 2D and 3D are made, indicating a common need for foundational resources.
  • A participant discusses their experience with simulating a squirrel cage motor and raises questions about meshing.
  • Concerns are raised about a simulation yielding no results, with a participant seeking advice on troubleshooting this issue.
  • Another participant describes their attempt to design concentric cylinders and asks for help with measuring voltages on the outer cylinder.
  • Detailed steps are provided by one participant on how to set up the concentric cylinders and the associated excitations, but they also note warnings encountered during validation.
  • Questions are posed about importing current data from external files and exporting voltage measurements, highlighting uncertainties in data handling within the software.
  • One participant clarifies that their modeling goal is not an air transformer but rather a representation of a nerve.
  • Warnings regarding eddy effect settings and mesh operations are discussed, with suggestions on how to address these issues.

Areas of Agreement / Disagreement

Participants generally express a shared need for tutorials and guidance on using Maxwell 3D, but there is no consensus on specific methods or solutions to the problems raised. Multiple competing views and approaches to simulation and troubleshooting remain evident throughout the discussion.

Contextual Notes

Participants mention limitations regarding the availability of tutorials and the challenges of achieving accurate simulations due to potential issues with meshing and eddy effect settings. Specific assumptions about the software's capabilities and data handling are also noted but not resolved.

Who May Find This Useful

This discussion may be useful for new users of Maxwell 3D, electrical engineers, and those interested in simulating electromagnetic devices or circuits. It may also benefit individuals seeking troubleshooting advice and practical tips for using the software effectively.

  • #151
Thanks gerbi,

I already did the band object. I have no idea where it goes wrong with my simulation. I give it another try. Many thanks for you help.
 
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  • #152
Double check it. Verify if the band object is big enough to contain all objects during motion.
 
  • #153
Eddy,

Just to be clear, the band should enclose all the moving objects, but none of the stationary objects. Also, since models with motion use the transient solver, you may (probably will) need mesh operations to get a good mesh for good results (the adaptive mesher only works for static models). What type of phenomena are you trying to simulate? Is the model 2D or 3D?
 
  • #154
Hi pkelecy,

Thanks for your advice. I am simulating a linear actuator in vertical motion. This is a 3D model simulation. As for mesh, I have set the mesh operation as suggested. But, still no-go for my simulation. Need to figure out what the problem.

Thanks,
Eddy
 
  • #155
What is the error code ?
 
  • #156
Hi guys!

I have tried to do the analysis of Magnetic Rotational Actuator, described step by step in Maxwell's example files. I am using Maxwell 14.
I have completed the whole process, but when i try to do the simulation i get:

[error] Failed to load 'Matrix1' solution. (12:24:29 AM Sep 09, 2013)
[error] Failed to evaluate calculation 'Matrix1.L(Current_1,Current_1)'. (12:24:29 AM Sep 09, 2013)
[info] A variation (ang='15deg') has been requested on machine Local Machine (12:24:29 AM Sep 09, 2013)

I first thought that I made the mistake in the process, however, i noticed that there is a file in maxwell's examples that already had this model done by ansoft, and all the parameters were identical to the file i made. I tried to run a solution but i got the same errors. Failed to load matrix1 solution.

Can anybody please help me with this error? I am quite new to maxwell.
 
  • #157
I tried the same file on the PC with new version of maxwell, and it was working just fine.
So, i guess it might have been a bug in the software.

On the different note, I wish maxwell would give some more info on the errors it gives out, not just, "failed to evaluate calculation". That might actually be useful, but then again,they might not be able to charge an arm and a leg for 3 hours seminar. Their training prices are nuts...
 
  • #158
Hello,

I have a question about Maxwell 2D Transient. If you choose the Core Loss, Maxwell Core Loss calculated via:

Kh is the hysteresis core loss coefficient,
Kc is the eddy-current core loss coefficient, and
Ke is the excess core loss coefficient.

Obviously then calculated losses due to eddy currents (Kc).

If I am under the Set Eddy Effects, select the same part where I count Core Loss, Shall I then get double losses due to eddy currents
 
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  • #159
Where do you get these info? I don't think Maxwell do any of those Kh, Kc and Ke.

WaXy said:
Hello,

I have a question about Maxwell 2D Transient. If you choose the Core Loss, Maxwell Core Loss calculated via:

Kh is the hysteresis core loss coefficient,
Kc is the eddy-current core loss coefficient, and
Ke is the excess core loss coefficient.

Obviously then calculated losses due to eddy currents (Kc).

If I am under the Set Eddy Effects, select the same part where I count Core Loss, Shall I then get double losses due to eddy currents
 
  • #160
In Material Properties these coefficients can be entered.

Setting: Set Core Loss and mark eg stator, and mark Defined in Material.

According to this, Maxwell Core Loss calculated as determined coefficients.
 
  • #161
I see it. This is for steel. I guess you need to Set Eddy Effects in order to have the correct current distribution, but I am not sure.
 
  • #162
Hi guys,

I am new to here. I am trying to use transient solver for a inductive power transfer simulation. The simulation time and save field was set from 0 to 0.2 ms. The simulation was finished, however only data between 0-0.104 s were saved, the data between 0.105-0.2 ms were shown n/a. Does anyone what might be the reason for this situation? Thanks!

Shuo
 
  • #163
I think that simulation is not converged. Check the number of finite elements and settings of Solver
 
  • #164
Thanks, There are 69873 meshes. What can I do with the setting of Solver?
 
  • #165
hye all

im a new,, i have a some problem in ansoft maxwell 3d,,

1) what mean about this error when I am analyze the program

Maxwell3DDesign1 (Magnetostatic)
[error] There are multiple disconnected solution domains. This is not allowed in magnetostatics. (11:17:49 PM Nov 14, 2013)
[error] Simulation completed with execution error on server: Local Machine. (11:17:49 PM Nov 14, 2013)

2) i need to use the permanent magnet in my project,, so to assign material what is the name for the permanent magnet i need to select? then, how to assign boundary, excitation, parameter for this material,,

hope anybody can help me to solve my problem,, :( tq all

im also attach my project picture
 

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  • #166
Hello

"Multiple disconnected domains" means that you need to create a region (Draw->Region). This operation creates a space where your experiment will take place.
You need to assign a permeant magnet.. well.. there are multiple materials. This is up to you to select one of them depending on design (yes, NdFe30 is one of them).
The only thing you need to select for permeant magnet is polarisation of magnet (after you select a material go into its properties - you'll find there XYZ components of magnitute that describes polarisation of magnet).
 
  • #167
ok tq so much bro gerbi,, now i have solve the problem,, tq
 
  • #168
hello all

i still have a new error about 3d coil,, i don't know how to setup excitation/boundary for current or else,, so what need i do for this part ( 3d coil )

this is my error when I am try to setup excitation

Maxwell3DDesign1 (Magnetostatic)
[error] Verify conduction path 'Path1': For any conduction path that has current density excitation(s) specified, current density terminal(s) should also be specified and vice versa. (11:44:05 PM Nov 17, 2013)

pls help me,, tq all :)
 
  • #169
helo all,, pls help help me,,
 
  • #170
hi i need to design a transformer with carbon nano tube wires instead of copper wires..can anyone say how can i do using ansoft maxwell
 
  • #171
ansoft maxwell 2d

hello,
I am designing a switched reluctance motor with double layered winding using ansoft maxwell 2d.Can anyone help me with connecting an isolated supply in between each phase windings in the circuit editor part.
Thanks.
 
  • #172
Help Required

I want to design a linear generator with square shape;
Based on previous work i have found that finite element analysis of tubular (circular shape) is done in cylindrical (2D RZ plane). But when the shape is square in what coordinate system we can do finite element analysis. Please help me regarding this.
 
  • #173
[Error] Failed to evaluate calculatoin Matrix1.L(...)

Hey guys,
by solving a parametricSetup, the error
[error] Failed to evaluate calculation 'Matrix1.L(Current_0,Current_0)'
appears in the Message Manager.

I am using Maxwell 16 and simulating a model with two flat coils.

Using Maxwell on a different computer doesn't solve my problem. Though, the licenses are being distributed by a central server.

The problem occures whenever i copy a model in the Project Manager and add it to the same and/or different opened project to use the same settings but alter the number of turns of the flat coils.

On my way to find the error, i discovered that the problem occures whenever i run the original simulation to check the first parameter steps and use clean stop. After the completed abortion, the copy of that model always happens to have the Error mentioned above.

By a non-aborted model, the problem hasnt accured, so far!

Since i am going to use many altered copies of one orginal one, i want to reinsure the problem will not appear troughout all the copies.

Does anyone has had the same problem and can confirm my suggested error´s source?

I appreciate your help.
 
  • #174
Hi,

I don`t know if I`m in the right section to explain my problem..
First of all, I would like to visualize eddy currents. So I create 2 solids (coil and solid looks like a `U` compose od ferrite) in solidwoks and I imported them in MAXWELL 3D.

When I decided to apply a current on a surface in the coil, I had an error when I created a surface... The operation is in the tutorial is : Modeler»Surface»section..

I attached 2 pictures to show my problem..

Thank`s
 

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  • #175
Hi everyone,
I want to plot cos waveform in maxwell. can anyone give me the formula. Thanks
 
  • #176
sorry, I am new here, , how to display the value of the flux Intensity of each point from a position to another position?
 
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  • #177
if you want to plot it; just draw a line in air gap and follow
results>create field report>rectangular plot>geometry>select the drawn line>plot
 
  • #178
hussain_aamir said:
if you want to plot it; just draw a line in air gap and follow
results>create field report>rectangular plot>geometry>select the drawn line>plot

thanks , but after I tried it, the value (mag_B Tesla) was too high , there are any another setting to do to get precision value??
 
  • #179
creactivee said:
thanks , but after I tried it, the value (mag_B Tesla) was too high , there are any another setting to do to get precision value??

based on my knowledge there is another method; that is using calculator but for getting this you go through maxwell guide that has complete how to use calculator explanation
 
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  • #180
I want to see how my B field changes with changing Ampere with respect to the coordinate.
Therefore i use an rectangular plot along a non-model line to see the change of my B field.
Is there a way to calculate my B field with respect to my coordinate and several Ampere values?
Since i don't have the time to set an ParametricSetup up for all Ampere combinations with all the other changing geometrical components, i am glad for any hint.
 

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