Abstract
This paper deals with the static thrust characteristics of a cylindrical moving-magnet-type linear oscillatory actuator (LOA). The influences of the LOA size on the static thrust are investigated. The conclusions are as follows: (1) the maximum static thrust of the LOA occurs at x=2.5mm (the thrust constant is 3 N/A); (2) the thrust values calculated by the finite element method (FEM) show good agreement with the measured results, and the error is within 4 percent; and (3) the thrust of the LOA is mainly produced in the mover at the center and at two sides; and (4) the simulation of the static thrust by FEM, only adjusting either the outer diameter of the LOA to within the range from 8 to 16 mm or the diameter of permanent magnet from 3 to 8 mm, shows that the specifications of the prototype LOA are reasonable.
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