Magnetic field calculation and measurement of active magnetic bearings

Guoping Ding; Zude Zhou; Yefa Hu

doi:10.1117/12.716347

13 October 2006 Magnetic field calculation and measurement of active magnetic bearings

Guoping Ding, Zude Zhou, Yefa Hu

Proceedings Volume 6280, Third International Symposium on Precision Mechanical Measurements; 62803U (2006) https://doi.org/10.1117/12.716347
Event: Third International Symposium on Precision Mechanical Measurements, 2006, Urumqi, China

Abstract

Magnetic Bearings are typical devices in which electric energy and mechanical energy convert mutually. Magnetic Field indicates the relationship between 2 of the most important parameters in a magnetic bearing - current and force. This paper presents calculation and measurement of the magnetic field distribution of a self-designed magnetic bearing. Firstly, the static Maxwell's equations of the magnetic bearing are presented and a Finite Element Analysis (FEA) is found to solve the equations and get post-process results by means of ANSYS software. Secondly, to confirm the calculation results a Lakeshore460 3-channel Gaussmeter is used to measure the magnetic flux density of the magnetic bearing in X, Y, Z directions accurately. According to the measurement data the author constructs a 3D magnetic field distribution digital model by means of MATLAB software. Thirdly, the calculation results and the measurement data are compared and analyzed; the comparing result indicates that the calculation results are consistent with the measurement data in allowable dimension variation, which means that the FEA calculation method of the magnetic bearing has high precision. Finally, it is concluded that the magnetic field calculation and measurement can accurately reflect the real magnetic distribution in the magnetic bearing and the result can guide the design and analysis of the magnetic bearing effectively.

Citation Download Citation

Guoping Ding, Zude Zhou, and Yefa Hu "Magnetic field calculation and measurement of active magnetic bearings", Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 62803U (13 October 2006); https://doi.org/10.1117/12.716347

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available