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This example shows some of the capabilities of the LS-DYNA EM solver (Post R13). A standard voltage of 12 V is applied between the two brushes of the motor. Permanent magnets located on each side of the armature cause the branches to start moving. The EM contact algorithm allows the current path to "switch" between the different branches and maintain the movement. The use of LS-DYNA FEM/BEM method to handle the electromagnetic fields as well as its integrated and automatic coupling with the structure makes it a powerful tool for such simulations.