Results 211 to 220 of about 3,436 (264)
Some of the next articles are maybe not open access.
[1993] Digests of International Magnetics Conference, 1993
A variety of distance sensors suitable for application to magnetic levitation is examined. The characteristics of the sensors regarding the phase shift between in- and outgoing signals, frequency response, DC-stability, stability to EMF interference, resolution and temperature stability are analyzed.
J. Boehm, R. Gerber, N.R.C. Kiley
openaire +1 more source
A variety of distance sensors suitable for application to magnetic levitation is examined. The characteristics of the sensors regarding the phase shift between in- and outgoing signals, frequency response, DC-stability, stability to EMF interference, resolution and temperature stability are analyzed.
J. Boehm, R. Gerber, N.R.C. Kiley
openaire +1 more source
Passively stabilized magnetic bearings
Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation, 2010This paper presents a new passive magnetic bearing system that is capable to rotate without contact at a short distance from a dedicated stator. The magnetic suspension is assured by the repulsion between two arrangements of permanent magnets located both on toroidal shaped stator and rotor. The stator magnets are surrounded by a conductive sheet.
MUSOLINO, ANTONINO, RIZZO, ROCCO
openaire +1 more source
SAE Technical Paper Series, 1964
<div class="htmlview paragraph">Methods of freely, magnetically, suspending rotors in air, in various media, and in a vacuum are described. Rotors weighing from 10<sup>−6</sup> lb to over 100 lb have been suspended and spun, but both larger and smaller rotors can be employed.
openaire +1 more source
<div class="htmlview paragraph">Methods of freely, magnetically, suspending rotors in air, in various media, and in a vacuum are described. Rotors weighing from 10<sup>−6</sup> lb to over 100 lb have been suspended and spun, but both larger and smaller rotors can be employed.
openaire +1 more source
Improvements of the Integration of Active Magnetic Bearings
IFAC Proceedings Volumes, 2000Abstract Functional and structural integration are tools to improve mechatronic systems that include active magnetic bearing systems. In this paper two aspects of the integration of electromagnetic bearings are presented: 1. The non-linearity of the magnetic force is compensated by software integrated in the digital controller. 2.
Norbert Skricka, Richard Markert
openaire +1 more source
On LQ-control of magnetic bearing
IEEE Transactions on Control Systems Technology, 2000Control theory gives very few examples of control systems for which the closed-form solution to the linear-quadratic (LQ) optimization problem exists. The paper describes two such systems of second- and fourth-order concerning magnetic bearings and gives the closed-form solutions to the LQ-problems.
openaire +1 more source
Compensation for unbalances at magnetic bearings
1997The aim of this paper is to provide a new method to compensate remaining unbalances at magnetic bearings. The compensating signal will be generated by a MLP-network. The main advantage that this new method presents lies in the simplified manner of operation rather than in a qualitative improvement of disturbance compensation.
Mathias Paul, Wilfried Hofmann
openaire +1 more source
On the theory and application of magnetic bearings
International Multi-Conference on Systems, Sygnals & Devices, 2012There is a brief introduction to some theoretical basics of magnetic bearings: losses, dynamic performance and types of magnetic bearings. Several new applications of magnetic are described: like high speed (140000 rpm) torque measuring system, ventilator test machine, cooling water pump in a power station and bearings with extreme loads in the range ...
openaire +1 more source
Novel magnetic spring and magnetic bearing
IEEE Transactions on Magnetics, 2003We describe a magnetic spring consisting of two magnetic rings with different dimensions, located concentrically in the same direction of magnetization. One of the two magnetic rings is fixed and the other can move axially. Because of the magnetic field, the two magnetic rings tend to keep away from each other at a fixed axial distance. If the relative
null Kun-Xi Qian +3 more
openaire +1 more source
Physica C: Superconductivity, 2002
Abstract Radial HTS magnetic bearings (SMB) up to 200 mm size are developed and tested in prototype fast rotating machines to demonstrate the potential to replace conventional bearings. The individual rotational bearing components HTS and PM, their physical interaction and technology is reviewed.
Frank N Werfel +4 more
openaire +1 more source
Abstract Radial HTS magnetic bearings (SMB) up to 200 mm size are developed and tested in prototype fast rotating machines to demonstrate the potential to replace conventional bearings. The individual rotational bearing components HTS and PM, their physical interaction and technology is reviewed.
Frank N Werfel +4 more
openaire +1 more source
2009
and Survey.- Principle of Active Magnetic Suspension.- Hardware Components.- Actuators.- Losses in Magnetic Bearings.- Design Criteria and Limiting Characteristics.- Dynamics of the Rigid Rotor.- Control of the Rigid Rotor in AMBs.- Digital Control.- Dynamics of Flexible Rotors.- Identification.- Control of Flexible Rotors.- Touch-down Bearings ...
openaire +1 more source
and Survey.- Principle of Active Magnetic Suspension.- Hardware Components.- Actuators.- Losses in Magnetic Bearings.- Design Criteria and Limiting Characteristics.- Dynamics of the Rigid Rotor.- Control of the Rigid Rotor in AMBs.- Digital Control.- Dynamics of Flexible Rotors.- Identification.- Control of Flexible Rotors.- Touch-down Bearings ...
openaire +1 more source