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  • Development of Mixer of Vibration Type by Using Magnetically Levitated Fin
  • ジキ フジョウ カクハン フィン オ リヨウ シタ シンドウガタ コンゴウ ソウチ ノ カイハツ

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In order to improve the mixing efficiency, the mixer of vibration type by using magnetically levitated fin is developed. In this device, the stir fin is levitated with the magnetic repulsive force in the mixing tank and excited from the outside by the periodically changing magnetic field. The system governed the motion of the stir fin has very strong nonlinearity, and the behavior of the stir fin is complicated. The damping coefficient is an important parameter to specify the motion of stir fin. The damping coefficient of vibrating fin in water is identified by using the phase method. The value of the damping coefficient obtained by the experiment is used in numerical calculation. The vibration characteristics of the stir fin are investigated by both numerical calculations and experiments.


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