This paper is concerned with a method for analyzing a rotary magnetic damper (eddy current brake) consisting of a number of sector magnets and a circular conductor. The analytical solution to obtain an eddy current, a braking force, and a damping coefficient is obtained by dividing the magnetic flux into the narrow sectors. Numerical calculations have been carried out for the variation of the flux range, the position, and the number of the magnets. Experimental tests are also carried out to verify the present theoretical results. The theoretical results are in good agreement wtih the experimental ones.
A Rotary Magnetic Damper or Brake Consisting of a Number of Sector Magnets and a Circular Conductor
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Nagaya, K., and Karube, Y. (March 1, 1989). "A Rotary Magnetic Damper or Brake Consisting of a Number of Sector Magnets and a Circular Conductor." ASME. J. Dyn. Sys., Meas., Control. March 1989; 111(1): 97–104. https://doi.org/10.1115/1.3153024
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