Results 21 to 30 of about 2,227,725 (249)

A Collocated Eddy-Current Displacement Sensor for Magnetic Bearings [PDF]

open access: yes한국정밀공학회지, 2022
Magnetic bearings use electromagnetic force to support the rotating shaft without any mechanical contact and actively control shaft vibration; hence, there is no mechanical friction and wear due to contact during the operation, and it has a semi ...
Sheng He Jin   +2 more
doaj   +1 more source

The Redundant Design and Reliability Analysis of Magnetic Bearings Used for Aeroengine

open access: yesAdvances in Mechanical Engineering, 2014
The redundant design principle of weak coupling magnetic bearing system for aeroengine is put forward. A redundant design scheme of weak coupling magnetic bearing system is provided including radial and axial magnetic bearings and their control system ...
Xiaoguang Wang   +5 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

A study on combination of number of poles and slots of motor and number of magnetic bearing phase for uniform control of rotor

open access: yesAIP Advances, 2023
By applying the halbach arrangement, an integrated magnetic bearing structure can be designed that secures the space inside the rotor core as a space for inserting the magnetic bearing.
Min-Ki Hong   +4 more
doaj   +1 more source

Displacement Estimation of Self-Sensing Magnetic Bearings Based on Biorthogonal Spline Wavelet

open access: yesIEEE Access, 2021
By collecting the ripple current in the control coil, the self-sensing magnetic bearings can obtain rotor displacement information without a displacement sensor, which has the advantages of low cost and high integration.
Haojie Xiong   +4 more
doaj   +1 more source

Low-temperature magnetic properties of magnetite [PDF]

open access: yes, 2000
Although several studies have recommended removal of secondary components of magnetic remanence by zero-field cycling from room temperature to a temperature much lower than the low temperature transition for magnetite (about 120 K), the method has not ...
Wyn Williams   +3 more
core   +1 more source

Design and analysis of Lorentz magnetic bearing for magnetic suspended control and sensing gyroscope

open access: yesElectronics Letters, 2021
To improve the control accuracy and output torque of magnetic suspend and control gyroscope, a Lorentz magnetic bearing with double second auxiliary air gap is proposed, and its mechanical structure is introduced.
Shinan Cao, Pingjuan Niu, Qiang Liu
doaj   +1 more source

Magnetic field analytical calculation method for radial unite of a combined magnetic bearing

open access: yesIET Electric Power Applications, 2023
Combined magnetic bearing with radial and axial unites is an important supporting element for high speed and high energy density motor. Accurate calculation of the magnetic field is a key to design and optimise a Combined Radial and Axial Magnetic ...
Xiaojun Ren, Ming Feng, Tianming Ren
doaj   +1 more source

Design and Implementation of a Fault-Tolerant Magnetic Bearing Control System Combined With a Novel Fault-Diagnosis of Actuators

open access: yesIEEE Access, 2021
Although magnetic bearings are generally reliable, an important concern for machine applications is fault tolerance. The fault-tolerant operation of a magnetic bearing system can be realized through the identification and isolation of fault actuators and
Xin Cheng   +5 more
doaj   +1 more source

Hybrid magnetic bearing

open access: yesВестник Самарского государственного технического университета. Серия: Технические науки, 2020
Increase of energy efficiency and decrease of weight-size parameters is an important problem for improvement of magnetic bearings. Using of permanent magnets on base of rare earth metals is promising direction for improvement of consumer properties of ...
Yuri A. Makarichev   +3 more
doaj  

Home - About - Disclaimer - Privacy