The double-excited electromechanical system shown in Figure P18.37 moves horizontally. Assume that resistance, magnetic leakage, and fringing are negligible; the permeability of the core is very large; and the cross section of the structure is w × w.
Find:
a. The reluctance of the magnetic circuit.
b. The magnetic energy stored in the air gap.
c. The force on the movable part as a function of its position.
Assumptions:
Resistance, magnetic leakage and fringing are negligible. The permeability of the core is very large.
Analysis:
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