Results 251 to 260 of about 386,361 (310)
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[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
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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
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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
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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.
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<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.
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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.
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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
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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
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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
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Journal of Magnetism and Magnetic Materials, 2004
Abstract The paper presents a special design of a passive magnetic bearing with permanent magnets on the fixed and the rotating part of the bearing. Peculiarity of the presented passive magnetic bearing is its ability to take radial and axial loads in both directions by using axially magnetized permanent magnets.
A. Hamler +4 more
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Abstract The paper presents a special design of a passive magnetic bearing with permanent magnets on the fixed and the rotating part of the bearing. Peculiarity of the presented passive magnetic bearing is its ability to take radial and axial loads in both directions by using axially magnetized permanent magnets.
A. Hamler +4 more
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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 ...
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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 ...
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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 ...
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2008
This chapter is addressed to modern magnetic bearing technologies, which represent relatively new technically and economically ascending areas in the field of electrical drive engineering. There are a lot of promising research and development activities in scientific as well as in industrial communities to reduce the complexity of the magnetic systems ...
Wolfgang Amrhein, Siegfried Silber
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This chapter is addressed to modern magnetic bearing technologies, which represent relatively new technically and economically ascending areas in the field of electrical drive engineering. There are a lot of promising research and development activities in scientific as well as in industrial communities to reduce the complexity of the magnetic systems ...
Wolfgang Amrhein, Siegfried Silber
openaire +1 more source