Active magnetic damper in a power transmission system |
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Institution: | 1. Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John''s, NL A1B 3X7, Canada;2. Soricimed Biopharma Inc., Sackville, NB E4L 4H2, Canada;1. School of Mechanical Electronic & Information Engineering, China University of Mining & Technology (Beijing), D11 XueYuan Road, HaiDian, Beijing 100083, China;2. Mining Products Safety Approval and Certification Center, Beijing 100013, China |
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Abstract: | In rotor dynamics, the bearing characteristics exerts a decisive influence on dynamics of the rotating shaft. The research and application experience have led to active magnetic bearings (AMBs), which allow for unique applications in rotating systems. The paper presents the investigations concerning optimization of the magnetic bearing construction. An active magnetic bearing operates as a radial, auxiliary damper, which cooperates with the long, flexible shaft line (aircraft industry applications) and modifies its dynamic properties. In the developed concept of AMBs for aviation purposes, a necessity of increasing its bearing load capacity and damping has occurred. The second important criterion is a weight reduction. This advanced problem leads to specific requirements on the design and materials for the AMB. To achieve these goals, some simulations have been performed. The experimental results are presented as well. |
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