Results 1 to 10 of about 46,065 (315)

A Generalized Unbiased Control Strategy for Radial Magnetic Bearings

open access: yesActuators, 2017
The present work extends a method of unbiased control originally developed for three-pole radial magnetic bearings into a generalized unbiased control strategy that encompasses bearings with an arbitrary number of poles.
David Meeker
doaj   +3 more sources

Review on Key Development of Magnetic Bearings

open access: yesMachines
A magnetic suspension bearing is a device that suspends the rotating shaft in a balanced position by magnetic force, thereby eliminating the friction between the rotor and the stator.
Tong Wu, Weiyu Zhang
doaj   +3 more sources

Radial magnetic bearings: An overview

open access: yesResults in Physics, 2017
Radial magnetic bearings (RMBs) are one of the most commonly used magnetic bearings. They are used widely in the field of ultra-high speed and ultra-precise numerical control machine tools, bearingless motors, high speed flywheels, artificial heart pumps,
Weiyu Zhang, Huangqiu Zhu
doaj   +3 more sources

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

A Study on the Efficient Optimization of Controller for Magnetic Bearings Supporting Oil-Free Turbo-Chiller Compressor [PDF]

open access: yes한국정밀공학회지, 2022
Magnetic bearings are being actively adopted by the turbo-chiller industry because of their higher efficiency during partial load, quieter operation, and smaller footprint than that which machines with ball bearings provide.
Eunsang Kwon   +4 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

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