In 3D projects with symmetries, how should I define the non meshed coils?

Yann_Le_Floch
Yann_Le_Floch
Altair Employee
edited November 2021 in Altair HyperWorks

In 3D projects with one or more symmetries, the non-meshed coils could be represented by the full geometry or by a portion that will be duplicated. The duplication of non-meshed coils by the symmetries is done automatically by Flux using the option “Duplication by the symmetries and the periodicities” in the tab Electrical of the coil definition. This option is selected by default.

Example 1: Let us consider a 3D transformer model where only ¼ of the geometry is represented and non-meshed coils are used. So, there are two symmetries planes on XY and on ZX.

  1. If the coils are centered according to the symmetry planes, there will not be duplicated coils. As we can see in the electrical tab, “NO coil by symmetry is duplicated” is displayed for both symmetries;

    image

  2. If the coils are shifted according to one of the symmetry planes, there will be duplicated coil with respect to this symmetry. As we can see in the electrical tab below 2 coils are obtained by duplication by anti-symmetry according to the XY symmetry plane.

    image

  3. if the coils are shifted according to all the symmetry planes, there will be duplicated coils with respect to these symmetries. As we can see in the Electrical tab below 4 coils are obtained by duplication by anti-symmetry on XY plane and by symmetry on ZX plane.

    image

If the coils should not be duplicated (for instance the shape is not the same according to the symmetry), the user should select the option "No duplication by the symmetries and the periodicities".


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