Electronics

Electronics

Topics related to HFSS, Maxwell, SIwave, Icepak, Electronics Enterprise and more

Axial Flux motor 3D simulation, out of memory issue in Ansys Maxwell

    • JUNAED HOSSAIN
      Subscriber

      I am trying to do 3D simulation (Magnetostatics) in Ansys Maxwell of an axial flux motor. The simulation ran about 7-8 minutes and then it is showing " process '3dnms' terminated abnormally. It may have been run out of memory or could have been killed by the user." I was checking the task manager and durin g termination of simulation it was around 94% memory usage. I have 16 GB RAM and the number of elements from Mesh Statistics is about 15455. The issue is similiar for a 32GB RAM PC as well. I was wondering if there is any other issue I am missing. Kindly help.

    • JUNAED HOSSAIN
      Subscriber

      Hi tried the simulation again but this time no excitation. The simulation worked but took around 40 minutes. Please suggest where to improve so that my simulation works with addition of windings and coil terminals.

    • Reshmi Raghavan
      Ansys Employee

      Hello Junaed,

      As you mentioned the model is taking around 94% memory usage, this is the reason for failure of the analysis. The solution for the same is to either increase the RAM and another is to simplify the problem which is being solved. 

      In the initial magnetostatic analysis are you exciting the windings with a current? 

      You can make the model segemented if not done. This would help in generating a refined mesh.

Viewing 2 reply threads
  • You must be logged in to reply to this topic.