The implications of three-dimensional mesh generation on thecalculation of mechanical forces in magnetic devices
Lowther, D.A.; Forghani, B.; McFee, S.
Magnetics, IEEE Transactions on
Volume 26, Issue 5, Sep 1990 Page(s):2777 - 2779
Digital Object Identifier 10.1109/20.104870
Summary:The implications of the methods used in mesh generation for force
calculation in three-dimensional magnetic device analysis are discussed.
Virtual-work and single-solution methods are compared, and the
usefulness of the element topological information is considered. It is
concluded that because the virtual work approach is somewhat independent
of the meshing system used and the coenergy values may be derived easily
in the solution process, the approach may be the method of choice for
many applications requiring low-cost force calculation in three
dimensions. It must be noted, however, that it can generate large
errors, and the exact method of generating the models for the multiple
solutions, i.e., moving nodes or changing labels, can have major effects
on the overall accuracy. In general, it is more difficult to separate
postprocessing functions in three dimensions from the underlying
topological structures created in the postprocessor and solver, and
further work in both areas is needed to develop effective calculation
techniques
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