Results 11 to 20 of about 115,508 (267)

Critical Vibration and Control of the Maglev High-Speed Motor Based on μ–Synthesis Control

open access: yesSensors, 2022
The Maglev motor has the characteristics of high-speed and high-power density, and is widely used in compressors, molecular pumps and other high-speed rotating machinery.
Yefa Hu   +4 more
doaj   +1 more source

Stabilization of magnetic suspension system by a reset element (Adjustment of vibration attenuation characteristic)

open access: yesNihon Kikai Gakkai ronbunshu, 2020
A first-order-reset element (FORE) controller is modified to adjust the vibration attenuation characteristic of a magnetic suspension system. The proportional-derivative (PD) feedback control is the simplest control method of stabilizing magnetic ...
Yuji ISHINO   +3 more
doaj   +1 more source

Magnetic Suspension Technology for Electric Jet Engines [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2021
Reducing the emission of harmful compounds such as carbon dioxide and nitrogen oxides has been identified as a priority target in the European Union. Aviation is one of the main sources of pollution.
Krzysztof Falkowski   +4 more
doaj   +1 more source

Six pole type hybrid magnetic bearing for turbo-machinery

open access: yesMechanical Engineering Journal, 2017
New six pole type hybrid magnetic bearing is introduced. It is intended to apply to high speed turbo-machinery. Traditionally turbo-machinery uses standard electromagnet (EM) type active magnetic bearing (AMB) which requires PWM power amplifiers ...
Yohji OKADA   +4 more
doaj   +1 more source

Development of highly efficient hybrid magnetic bearing and application to ultra-low temperature fluid pump

open access: yesMechanical Engineering Journal, 2015
Highly efficient hybrid type magnetic bearing is proposed in this paper. It is intended to apply the proposed magnetic bearing to ultra low temperature fluid pump.
Yohji OKADA   +4 more
doaj   +1 more source

Development of an experimental plant and a numerical model of an axial magnetic rotor suspension

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2023
This article presents the results of the work on the creation of an experimental plant, its testing, as well as the development of a computational model of a rotor magnetic suspension with the use of axial electromagnets.
M. A. Benedyuk   +4 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

Principle and performance analysis for six‐pole hybrid magnetic bearing with a secondary air gap

open access: yesElectronics Letters, 2021
In order to reduce the non‐linearity of radial suspension forces of the three‐pole hybrid magnetic bearing and further reduce the cost and power consumption, an AC six‐pole hybrid magnetic bearing with secondary air gaps is proposed. First, the structure
Gai Liu, Huangqiu Zhu, Weiyu Zhang
doaj   +1 more source

Stabilization of a Magnetic Repulsive Levitation Flywheel System Using a High-Efficiency Superconducting Magnetic Bearing

open access: yesActuators, 2022
In this study, we developed a superconducting magnetic bearing using a permanent repulsive magnet. A repulsive magnetic levitation system with a permanent magnet can generate a strong levitation force in the absence of a power supply.
Iwanori Murakami   +2 more
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

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