Prediction of Rotating Losses in Heteropolar Radial Magnetic Bearings

Author:

Meeker David C.1,Maslen Eric H.2

Affiliation:

1. Gedanken Magnetics, 80 Lanark Rd., Brighton, MA 02146-1843

2. Department of Mechanical, Aerospace, & Nuclear Engineering, University of Virginia, Charlottesville, VA 22903

Abstract

Previously, thin plate assumptions have been used to obtain a one-dimensional eddy current model for predicting the stationary, transformer-type losses in magnetic bearings built out of laminated material. Using similar assumptions, as in the 1-D eddy current model, rotating losses can be predicted for a laminated heteropolar radial magnetic bearing. The thin plate model of rotating losses yields a hybrid analytical-boundary element model that is computationally inexpensive to implement. Predictions from this model compare favorably to losses experimentally measured in rotor run-down tests.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Cited by 6 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. On the Evolution of Passive Magnetic Bearings;Journal of Tribology;2021-08-03

2. Analysis and Experiment of Eddy Current Loss in Radial Magnetic Bearings with Solid Rotor;MATEC Web of Conferences;2018

3. Total loss optimization in varying pole pair radial magnetic bearing using theoretical and genetic algorithm approach;Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology;2015-09-24

4. Dynamic circuit model of a radial magnetic bearing with permanent magnet bias and laminated cores;International Journal of Applied Electromagnetics and Mechanics;2014-06-01

5. Losses in Magnetic Bearings;Magnetic Bearings;2009

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