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Proceedings Papers

The Effect of an Electromagnetic Damper on Vibrations in Rotating Machinery

M. E. F. Kasarda, P. E. Allaire, R. R. Humphris, E. J. Gunter

Proc. ASME. DETC91, 13th Biennial Conference on Mechanical Vibration and Noise: Vibration Analysis — Analytical and Computational, 245-251, September 22–25, 1991

Paper No: DETC1991-0341

DOI: https://doi.org/10.1115/DETC1991-0341

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Topics: Dampers, Machinery, Vibration, Rotors, Damping, Stiffness, Bearings, Compressors, Fluid films, Turbines

Proceedings Papers

Performance and Cost Reduction of Permanent Magnet Biased Magnetic Bearings

B. R. Nichols, P. E. Allaire, T. Dimond, J. Cao, S. Dousti

Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT34A024, June 26–30, 2017

Paper No: GT2017-64050

DOI: https://doi.org/10.1115/GT2017-64050

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Topics: Magnetic bearings, Permanent magnets, Bearings, Electricity (Physics), Stress, Wire, Currents, Electromagnetic induction, Magnetic flux, Manufacturing

Proceedings Papers

Penalty Function Finite Element Analysis of Steady Viscous Incompressible Flow in Rotating Coordinates

M. C. Rosen, P. E. Allaire, J. G. Rice

Proc. ASME. GT1984, Volume 1: Turbomachinery, V001T01A013, June 4–7, 1984

Paper No: 84-GT-36

DOI: https://doi.org/10.1115/84-GT-36

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Topics: Finite element analysis, Flow (Dynamics), Centrifugal force, Finite element methods, Poiseuille flow, Turbomachinery, Turbulence, Viscous flow

Proceedings Papers

Two Dimensional Flow Analysis of a Laboratory Centrifugal Pump

S. M. Miner, R. D. Flack, P. E. Allaire

Proc. ASME. GT1990, Volume 1: Turbomachinery, V001T01A018, June 11–14, 1990

Paper No: 90-GT-050

DOI: https://doi.org/10.1115/90-GT-050

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Topics: Centrifugal pumps, Flow (Dynamics), Impellers, Design, Pumps, Finite element analysis, Lasers, Rotation, Steady state, Velocimeters

Proceedings Papers

A Magnetic Damper for First Mode Vibration Reduction in Multimass Flexible Rotors

M. E. F. Kasarda, P. E. Allaire, R. R. Humphris, L. E. Barrett

Proc. ASME. GT1989, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, V005T13A014, June 4–8, 1989

Paper No: 89-GT-213

DOI: https://doi.org/10.1115/89-GT-213

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Topics: Dampers, Rotors, Vibration, Bearings, Damping, Machinery, Disks, Stiffness, Compressors, Fluids

Proceedings Papers

Magnetic Thrust Bearing Operation and Industrial Pump Application

P. E. Allaire, E. H. Maslen, D. W. Lewis, R. D. Flack

Proc. ASME. GT1994, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, V005T14A003, June 13–16, 1994

Paper No: 94-GT-038

DOI: https://doi.org/10.1115/94-GT-038

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Topics: Pumps, Thrust bearings, Actuators, Bearings, Magnetic bearings, Circuits, Design, Engines, Feedback, Fluid films

Proceedings Papers

Measured Force/Current Relations in Solid Magnetic Thrust Bearings

P. E. Allaire, R. L. Fittro, E. H. Maslen, W. C. Wakefield

Proc. ASME. GT1995, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V005T14A036, June 5–8, 1995

Paper No: 95-GT-400

DOI: https://doi.org/10.1115/95-GT-400

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Topics: Thrust bearings, Bearings, Magnetic bearings, Currents, Machinery, Circuits, Compressors, Design, Eddies (Fluid dynamics), Electromagnetic scattering

Proceedings Papers

High Speed Rotor Losses in a Radial 8-Pole Magnetic Bearing: Part 1 — Experimental Measurement

M. E. F. Kasarda, P. E. Allaire, E. H. Maslen, G. R. Brown, G. T. Gillies

Proc. ASME. GT1996, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, V005T14A055, June 10–13, 1996

Paper No: 96-GT-470

DOI: https://doi.org/10.1115/96-GT-470

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Topics: Magnetic bearings, Poles (Building), Rotors, Bearings, Engines, Motors, Stators, Aerospace industry, Density, Eddies (Fluid dynamics)

Proceedings Papers

High Speed Rotor Losses in a Radial 8-Pole Magnetic Bearing: Part 2 — Analytical/Empirical Models and Calculations

M. E. F. Kasarda, P. E. Allaire, E. H. Maslen, G. R. Brown, G. T. Gillies

Paper No: 96-GT-471

DOI: https://doi.org/10.1115/96-GT-471

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Topics: Magnetic bearings, Poles (Building), Rotors, Bearings, Eddies (Fluid dynamics), Aerospace industry, Engineering prototypes, Jet engines

Proceedings Papers

Flux Density and Air Gap Effects on Rotor Power Loss Measurements in Planar Radial Magnetic Bearings

P. E. Allaire, M. E. F. Kasarda, E. H. Maslen, G. T. Gillies, L. K. Fujita

Proc. ASME. GT1997, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T14A005, June 2–5, 1997

Paper No: 97-GT-017

DOI: https://doi.org/10.1115/97-GT-017

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Topics: Density, Magnetic bearings, Rotors, Eddies (Fluid dynamics), Eddy currents (Electricity), Magnetic induction, Drag (Fluid dynamics), Heat, Kinetic energy

Proceedings Papers

Radial Planar Magnetic Bearing Analysis With Finite Elements Including Rotor Motion and Power Losses

R. D. Rockwell, Jr., P. E. Allaire, M. E. F. Kasarda

Paper No: 97-GT-503

DOI: https://doi.org/10.1115/97-GT-503

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Topics: Finite element analysis, Magnetic bearings, Rotors, Magnetic induction, Eddies (Fluid dynamics), Eddy currents (Electricity), Electric fields, Electrical conductivity, Finite element model, Magnetic materials

Proceedings Papers

Rotor Power Losses in Planar Radial Magnetic Bearings — Effects of Number of Stator Poles, Air Gap Thickness, and Magnetic Flux Density

P. E. Allaire, M. E. F. Kasarda, L. K. Fujita

Proc. ASME. GT1998, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V005T14A020, June 2–5, 1998

Paper No: 98-GT-316

DOI: https://doi.org/10.1115/98-GT-316

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Topics: Magnetic bearings, Magnetic induction, Poles (Building), Rotors, Stators, Eddies (Fluid dynamics), Bearings, Eddy currents (Electricity), Clearances (Engineering), Drag (Fluid dynamics)

Proceedings Papers

Experimentally Determined Rotor Power Losses in Homopolar and Heteropolar Magnetic Bearings

M. E. F. Kasarda, P. E. Allaire, P. M. Norris, C. Mastrangelo, E. H. Maslen

Proc. ASME. GT1998, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V005T14A021, June 2–5, 1998

Paper No: 98-GT-317

DOI: https://doi.org/10.1115/98-GT-317

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Topics: Magnetic bearings, Rotors, Bearings, Design, Aerospace industry, Clearances (Engineering), Density, Eddies (Fluid dynamics), Energy storage, Flywheels

Proceedings Papers

Sliding Mode Control of Magnetic Bearings: Comparison of Sensed and Self Sensing Performance

S. Ueno, J. H. Lee, P. E. Allaire, Y. Okada

Proc. ASME. GT1999, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General, V004T03A026, June 7–10, 1999

Paper No: 99-GT-206

DOI: https://doi.org/10.1115/99-GT-206

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Topics: Magnetic bearings, Sliding mode control, Sensors, Displacement, Algorithms, Boundary layers, Chatter, Control equipment, Eddies (Fluid dynamics), Eddy currents (Electricity)

Journal Articles

Windage Power Loss Modeling of a Smooth Rotor Supported by Homopolar Active Magnetic Bearings

M. Saint Raymond, M. E. F. Kasarda, P. E. Allaire

J. Tribol. April 2008, 130(2): 021101.

DOI: https://doi.org/10.1115/1.2806203

Published Online: March 3, 2008

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Topics: Drag (Fluid dynamics), Magnetic bearings, Rotors, Turbulence, Flywheels, Eddies (Fluid dynamics)

Journal Articles

Experimentally Determined Rotor Power Losses in Homopolar and Heteropolar Magnetic Bearings

M. E. F. Kasarda, P. E. Allaire, P. M. Norris, C. Mastrangelo, E. H. Maslen

J. Eng. Gas Turbines Power. October 1999, 121(4): 697–702.

DOI: https://doi.org/10.1115/1.2818529

Published Online: October 1, 1999

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Topics: Magnetic bearings, Rotors, Bearings, Design, Aerospace industry, Clearances (Engineering), Density, Eddies (Fluid dynamics), Energy storage, Flywheels

Journal Articles

Rotor Power Losses in Planar Radial Magnetic Bearings—Effects of Number of Stator Poles, Air Gap Thickness, and Magnetic Flux Density

P. E. Allaire, M. E. F. Kasarda, L. K. Fujita

J. Eng. Gas Turbines Power. October 1999, 121(4): 691–696.

DOI: https://doi.org/10.1115/1.2818528

Published Online: October 1, 1999

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Topics: Magnetic bearings, Magnetic induction, Poles (Building), Rotors, Stators, Eddies (Fluid dynamics), Bearings, Eddy currents (Electricity), Clearances (Engineering), Drag (Fluid dynamics)

Journal Articles

High-Speed Rotor Losses in a Radial Eight-Pole Magnetic Bearing: Part 1—Experimental Measurement

M. E. F. Kasarda, P. E. Allaire, E. H. Maslen, G. R. Brown, G. T. Gillies

J. Eng. Gas Turbines Power. January 1998, 120(1): 105–109.

DOI: https://doi.org/10.1115/1.2818059

Published Online: January 1, 1998

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Topics: Magnetic bearings, Poles (Building), Rotors, Bearings, Engines, Motors, Stators, Aerospace industry, Density, Eddies (Fluid dynamics)

Journal Articles

High-Speed Rotor Losses in a Radial Eight-Pole Magnetic Bearing: Part 2—Analytical/Empirical Models and Calculations

M. E. F. Kasarda, P. E. Allaire, E. H. Maslen, G. R. Brown, G. T. Gillies

J. Eng. Gas Turbines Power. January 1998, 120(1): 110–114.

DOI: https://doi.org/10.1115/1.2818060

Published Online: January 1, 1998

View Article

Topics: Magnetic bearings, Poles (Building), Rotors, Bearings, Eddies (Fluid dynamics), Aerospace industry, Engineering prototypes, Jet engines

Journal Articles

Magnetic Thrust Bearing Operation and Industrial Pump Application

P. E. Allaire, E. H. Maslen, D. W. Lewis, R. D. Flack

J. Eng. Gas Turbines Power. January 1997, 119(1): 168–173.

DOI: https://doi.org/10.1115/1.2815543

Published Online: January 1, 1997

View Article

Topics: Pumps, Thrust bearings, Bearings, Actuators, Magnetic bearings, Circuits, Design, Engines, Feedback, Fluid films

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Journal citation

NARROW

The Effect of an Electromagnetic Damper on Vibrations in Rotating Machinery

Performance and Cost Reduction of Permanent Magnet Biased Magnetic Bearings

Penalty Function Finite Element Analysis of Steady Viscous Incompressible Flow in Rotating Coordinates

Two Dimensional Flow Analysis of a Laboratory Centrifugal Pump

A Magnetic Damper for First Mode Vibration Reduction in Multimass Flexible Rotors

Magnetic Thrust Bearing Operation and Industrial Pump Application

Measured Force/Current Relations in Solid Magnetic Thrust Bearings

High Speed Rotor Losses in a Radial 8-Pole Magnetic Bearing: Part 1 — Experimental Measurement

High Speed Rotor Losses in a Radial 8-Pole Magnetic Bearing: Part 2 — Analytical/Empirical Models and Calculations

Flux Density and Air Gap Effects on Rotor Power Loss Measurements in Planar Radial Magnetic Bearings

Radial Planar Magnetic Bearing Analysis With Finite Elements Including Rotor Motion and Power Losses

Rotor Power Losses in Planar Radial Magnetic Bearings — Effects of Number of Stator Poles, Air Gap Thickness, and Magnetic Flux Density

Experimentally Determined Rotor Power Losses in Homopolar and Heteropolar Magnetic Bearings

Sliding Mode Control of Magnetic Bearings: Comparison of Sensed and Self Sensing Performance

Windage Power Loss Modeling of a Smooth Rotor Supported by Homopolar Active Magnetic Bearings

Experimentally Determined Rotor Power Losses in Homopolar and Heteropolar Magnetic Bearings

Rotor Power Losses in Planar Radial Magnetic Bearings—Effects of Number of Stator Poles, Air Gap Thickness, and Magnetic Flux Density

High-Speed Rotor Losses in a Radial Eight-Pole Magnetic Bearing: Part 1—Experimental Measurement

High-Speed Rotor Losses in a Radial Eight-Pole Magnetic Bearing: Part 2—Analytical/Empirical Models and Calculations

Magnetic Thrust Bearing Operation and Industrial Pump Application

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