Conferences related to Mechanical bearings

Back to Top

2023 Annual International Conference of the IEEE Engineering in Medicine & Biology Conference (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.


2020 59th IEEE Conference on Decision and Control (CDC)

The CDC is the premier conference dedicated to the advancement of the theory and practice of systems and control. The CDC annually brings together an international community of researchers and practitioners in the field of automatic control to discuss new research results, perspectives on future developments, and innovative applications relevant to decision making, automatic control, and related areas.


2020 IEEE 18th International Conference on Industrial Informatics (INDIN)

INDIN focuses on recent developments, deployments, technology trends, and research results in Industrial Informatics-related fields from both industry and academia


2020 IEEE IAS Petroleum and Chemical Industry Committee (PCIC)

The PCIC provides an international forum for the exchange of electrical applications technology related to the petroleum and chemical industry. The PCIC annual conference is rotated across North American locations of industry strength to attract national and international participation. User, manufacturer, consultant, and contractor participation is encouraged to strengthen the conference technical base. Success of the PCIC is built upon high quality papers, individual recognition, valued standards activities, mentoring, tutorials, networking and conference sites that appeal to all.


2020 IEEE International Conference on Robotics and Automation (ICRA)

The International Conference on Robotics and Automation (ICRA) is the IEEE Robotics and Automation Society’s biggest conference and one of the leading international forums for robotics researchers to present their work.


More Conferences

Periodicals related to Mechanical bearings

Back to Top

Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Control Systems Technology, IEEE Transactions on

Serves as a compendium for papers on the technological advances in control engineering and as an archival publication which will bridge the gap between theory and practice. Papers will highlight the latest knowledge, exploratory developments, and practical applications in all aspects of the technology needed to implement control systems from analysis and design through simulation and hardware.


More Periodicals

Most published Xplore authors for Mechanical bearings

Back to Top

Xplore Articles related to Mechanical bearings

Back to Top

Modeling and control of novel bearingless switched reluctance motor

2009 IEEE Energy Conversion Congress and Exposition, 2009

In order to solve problems of taking traditional mechanical bearing to bear the shaft, a novel bearingless switched reluctance motor with hybrid stator poles is proposed in this paper. The rotor needs only one bearing for rotating and constraining the axial movement. The other end can move freely in the radial direction. But it is balanced with the radial force ...


Application of superconducting magnetic bearings to a 10 kWh-class flywheel energy storage system

IEEE Transactions on Applied Superconductivity, 2005

Radial type superconducting magnetic bearings have been developed for a 10 kWh-class flywheel energy storage system. The bearings consist of an inner- cylindrical stator of YBCO bulk superconductors and an outer-rotor of permanent magnets. The rotor is suspended without contact via the pinning forces of the bulk superconductors that are arranged such that the c-axis of each superconductor is aligned ...


Real-time adaptive control of active magnetic bearings using linear parameter varying models

Proceedings IEEE SoutheastCon 2002 (Cat. No.02CH37283), 2002

Active magnetic bearings (AMBs) are electromechanical devices that provide noncontacting support of rotors, eliminating friction and other problems associated with typical mechanical bearings. However, these systems are highly nonlinear, inherently unstable, and have dynamic complications associated with flexible vibration modes and gyroscopic effects. Designing stabilizing, robust, real-time control algorithms for AMBs remains a research challenge that has to some extent ...


A bearingless method for induction machines

IEEE Transactions on Magnetics, 1993

A bearingless induction motor system that uses standard windings is proposed. The theoretical assumptions are tested experimentally using a four-pole, two- phase machine without one mechanical bearing. The basic idea is the modulation of the stator winding currents to achieve positioning and rotary forces. Shaft deviations smaller than 0.5 mm at speeds of 4000 rpm are reached during the initial ...


Friction state observation in positioning systems using Leunberger observer

Proceedings 2003 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM 2003), 2003

In this study, state observation in positioning systems is discussed. A Luenberger type state observer is developed for motion control systems with nonlinear elasto-plastic friction model. Experimental results are presented to illustrate benefits of the method to observe both velocity and friction states.


More Xplore Articles

Educational Resources on Mechanical bearings

Back to Top

IEEE-USA E-Books

  • Modeling and control of novel bearingless switched reluctance motor

    In order to solve problems of taking traditional mechanical bearing to bear the shaft, a novel bearingless switched reluctance motor with hybrid stator poles is proposed in this paper. The rotor needs only one bearing for rotating and constraining the axial movement. The other end can move freely in the radial direction. But it is balanced with the radial force produced by the motor. The proposed motor can generate a constant suspending force independent of rotor position only using small current excitation. And torque control can be naturally decoupled form suspending force control. In order to realize steady suspension, a model for radial force is introduced and used to design the controller. In the control scheme, simple PID method and hystersis current controllers are employed. Experimental results show the validity of proposed methods.

  • Application of superconducting magnetic bearings to a 10 kWh-class flywheel energy storage system

    Radial type superconducting magnetic bearings have been developed for a 10 kWh-class flywheel energy storage system. The bearings consist of an inner- cylindrical stator of YBCO bulk superconductors and an outer-rotor of permanent magnets. The rotor is suspended without contact via the pinning forces of the bulk superconductors that are arranged such that the c-axis of each superconductor is aligned parallel to the radial direction of the cylinder. In this paper, we describe the implementation of the stator part and report the SMB test results, namely that the rotor was successfully rotated at up to 7,500 rpm. Thus we succeeded in energy storage of 2.24 kWh.

  • Real-time adaptive control of active magnetic bearings using linear parameter varying models

    Active magnetic bearings (AMBs) are electromechanical devices that provide noncontacting support of rotors, eliminating friction and other problems associated with typical mechanical bearings. However, these systems are highly nonlinear, inherently unstable, and have dynamic complications associated with flexible vibration modes and gyroscopic effects. Designing stabilizing, robust, real-time control algorithms for AMBs remains a research challenge that has to some extent limited their commercial viability. Typical AMB control strategies rely on linear, time-invariant dynamic models that do not account for modeling uncertainties or parameter variations. While these models are convenient, nominally accurate, and tractable due to the abundance of linear control techniques, they neglect the nonlinearities and uncertainties that make controller implementation so challenging. In this paper the authors demonstrate a real-time adaptive control strategy based on a linear parameter varying (LPV) dynamic model. System identification is used to update a state feedback controller to improve performance compared to a nominal controller. This self-tuning regulator (STR) is implemented and experimentally validated on a simple AMB test rig.

  • A bearingless method for induction machines

    A bearingless induction motor system that uses standard windings is proposed. The theoretical assumptions are tested experimentally using a four-pole, two- phase machine without one mechanical bearing. The basic idea is the modulation of the stator winding currents to achieve positioning and rotary forces. Shaft deviations smaller than 0.5 mm at speeds of 4000 rpm are reached during the initial laboratory tests.<<ETX>>

  • Friction state observation in positioning systems using Leunberger observer

    In this study, state observation in positioning systems is discussed. A Luenberger type state observer is developed for motion control systems with nonlinear elasto-plastic friction model. Experimental results are presented to illustrate benefits of the method to observe both velocity and friction states.

  • Bearingless in-line viscometer for the semiconductor industry

    A rotational in-line-viscometer without mechanical bearings and seals is described; all wetted surfaces are made of PTFE or PFA. This arrangement is suitable for the ultra-cleanliness requirements of the semiconductor industry. A cylindrical slice rotor is magnetically levitated and driven without mechanical contact with the stator of the viscometer. The rotor is surrounded by the test fluid. If the rotor is driven at a constant rotation speed, the fluid is sheared in a measurement gap between the rotor and the casing, and a torque is applied to the rotor. This torque correlates with the viscosity of the fluid. Since there is no friction from bearings and seals, this torque can be calculated directly from the motor current. The levitation of the rotor in the sample fluid is realized by a combination of active and passive magnetic bearings, based on the technology of the Bearingless Slice Motor, making the whole system very compact.

  • Strong magnetic field gradients in layered structures

    In this paper, we discusses novel structures that provide strong magnetic fields unhampered by either the field strength or the complexity of prior high field configurations.

  • A Study on a LVAD of a Wear-free Heart Pump

    This paper deals with hydrodynamic elements in a left ventricular assist device (LVAD) of a wear-free heart pump, a rigid rotor with translational and slop motion suspended in an active magnetic bearing (AMB) system. First, the modeling of the dynamic behaviour of the rotor is pointed out. Then, the control strategy is developed. It is based on a suggested control method considering with the coupling effect from both ends of the rotor. The controller is executed on a DSP board. Simulation results and experiment results show the efficiency of the control strategy and validates the method applied to the pump

  • Novel bearingless centrifugal blood pump

    A new directly-driven centrifugal blood pump has been designed and constructed. It is based on a special form of permanent magnet brushless DC motor whose rotor is combined with an impeller and encased in a sealed pump housing. To prevent potential thromboembolism and clotting, the rotor does not have any mechanical bearing. Instead, it is magnetically suspended in the pump housing. The multi-winding stator is located outside the pump housing and provides the rotor with rotation motion and also the magnetic suspension force. With the aid of three-dimensional finite element simulator, the motor has been simulated and analysed. This device may find application as a temporary blood pump or even as an implantable artificial heart.

  • Fabrication of a repulsive type magnetic bearing using a novel arrangement of permanent magnets for rotor suspension

    In repulsive type magnetic bearing system usually the rotor is levitated by the repulsive forces between stator and rotor permanent magnets. The system is unstable in nature. The controlled electromagnet is used to keep the rotor in the desired position. The repulsive magnetic bearing system has the advantages of using a smaller number of electromagnets and simplified control scheme compared to active magnetic bearing system. The advantages of using magnetic bearing system compared to mechanical bearing in high speed motors are long life, frictionless and lubrication free operation, feasible operation at high speed etc. Two repulsive magnetic bearing systems using permanent magnets for the levitation were fabricated a few years back and their levitation and control performance were compared. Material characteristics and configuration of permanent magnets are the central component for this type of bearing system. Due to aging and/or as both the magnets are repelling each other, there will be demagnetization of the permanent magnet, resulting the field distribution along the magnet's periphery non-uniform and this will affect the performance of the bearing system.



Standards related to Mechanical bearings

Back to Top

No standards are currently tagged "Mechanical bearings"


Jobs related to Mechanical bearings

Back to Top