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Temperature properties of passive magnetic bearing [PDF]
The practical interest in passive magnetic bearings is due to the fact that they are not subject to wear and have insignificant dissipative energy losses.
Bolotov Aleksander +2 more
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Active Disturbance Rejection Control in Magnetic Bearing Rotor Systems with Redundant Structures
At present, magnetic bearings are a better energy-saving choice than mechanical bearings in industrial applications. However, there are strongly coupled characteristics in magnetic bearing–rotor systems with redundant structures, and uncertain ...
Baixin Cheng +6 more
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A Study on Weight Reduction and High Performance in Separated Magnetic Bearings
Recently, high-speed motors are receiving a lot of attention in the industrial field. When driving a motor at high speed, the advantages include high power density, high efficiency, and miniaturization.
Si-Woo Song +3 more
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Instability Study of Magnetic Journal Bearing under S-CO2 Condition
A supercritical CO2 (S-CO2)-cooled Brayton cycle is under development for distributed power applications for remote regions. In order to successfully develop it, issues of controlling shaft levitation with bearings have to be solved. From several studies,
Dokyu Kim, SeungJoon Baik, JeongIk Lee
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Magnetic Bearing Proposal Design for a General Unbalanced Rotor System enhanced because of using sensors/actuators based in nanostructures [PDF]
Rotor systems need bearings in order to keep uniformity of rotational movement transmission. However, bearingsgenerate friction and energy losses due to heating transmisssion through the friction; for this reason, mechanicak bearings are replaced by ...
Calderón Jesus A. +11 more
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Design and Unbiased Control of Nine-Pole Radial Magnetic Bearing
Typical radial active magnetic bearings are structurally symmetric. For example, an eight-pole bearing uses two opposing pairs to control one axis by winding the pair in series.
Myounggyu D. Noh, Wonjin Jeong
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Dynamic Response Analysis of the Rotor Using the Jeffcott Method and Performance Improvement Using Active Magnetic Bearing [PDF]
The most common component of mechanical systems today is rotating machines. In these systems, vibration is caused by rotating components. As a result, to decrease the amplitude of vibrations created by rotating equipment, it’s required to understand the ...
Karrar Tuaib +2 more
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Fuzzy Bang-Bang Relay Control of a Rigid Rotor Supported by Active Magnetic Bearings
Active magnetic bearings, which are open-loop and unstable, require a feedback control system to ensure stable operation of the rotating machines that they support.
Farrukh Hafiz Nagi +2 more
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A novel compact-design homopolar magnetic bearing system is proposed for reaction wheels in satellite applications. The magnetic bearings, with low core loss, can increase the designed speed of the reaction wheel, thereby reducing the rotor inertia and ...
Ding-Cheng Hsiao, Min-Fu Hsieh
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Active magnetic bearings (AMBs) are electromagnetic mechanism systems in which non-contact bearings support a rotating shaft using attractive forces generated by electromagnets through closed-loop control. For complete support of a five degree of freedom
Danh Huy Nguyen +7 more
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