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Temperature properties of passive magnetic bearing [PDF]

open access: yesE3S Web of Conferences, 2023
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
doaj   +1 more source

Active Disturbance Rejection Control in Magnetic Bearing Rotor Systems with Redundant Structures

open access: yesSensors, 2022
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
doaj   +1 more source

A Study on Weight Reduction and High Performance in Separated Magnetic Bearings

open access: yesEnergies, 2023
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
doaj   +1 more source

Instability Study of Magnetic Journal Bearing under S-CO2 Condition

open access: yesApplied Sciences, 2021
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
doaj   +1 more source

Magnetic Bearing Proposal Design for a General Unbalanced Rotor System enhanced because of using sensors/actuators based in nanostructures [PDF]

open access: yesE3S Web of Conferences, 2019
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
doaj   +1 more source

Design and Unbiased Control of Nine-Pole Radial Magnetic Bearing

open access: yesActuators, 2023
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
doaj   +1 more source

Dynamic Response Analysis of the Rotor Using the Jeffcott Method and Performance Improvement Using Active Magnetic Bearing [PDF]

open access: yesEngineering and Technology Journal, 2023
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
doaj   +1 more source

Fuzzy Bang-Bang Relay Control of a Rigid Rotor Supported by Active Magnetic Bearings

open access: yesEnergies, 2022
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
doaj   +1 more source

Design and Implementation of Novel Homopolar Magnetic Bearings Incorporated in Reaction Wheel for Satellite Attitude Control

open access: yesIEEE Access, 2023
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
doaj   +1 more source

Fractional Order Active Disturbance Rejection Control for Canned Motor Conical Active Magnetic Bearing-Supported Pumps

open access: yesInventions, 2023
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
doaj   +1 more source

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