Applications of Permanent Maglev Bearing in Heart Pumps and Turbine Machine
Joint Authors
Wang, Hao
Jing, Teng
Qian, Kun-Xi
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-06
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
Earnshaw's theorem (1839) stated that no stationary object made of magnets in a fixed configuration can be held in stable equilibrium by any combination of static magnetic or gravitational forces.
What will happen by a moving body like a rotating passive magnetic levitator? Nobody has given an answer until now.
The author applied a self-made passive magnetic bearing to radial pump and turbine machine and found that if the rotating speed could be higher than a critical value, 3250 rpm for a pump and 1800 rpm for a turbine, the rotors would be disaffiliated from stators and keep the rotation stable.
It seems that the fast rotating levitator has a so-called “Gyroeffect” which makes the passive maglev rotator stable.
These results have extended Earnshaw's theorem from static to dynamic equilibrium.
In static state or by a speed lower than critical value, the passive maglev rotator cannot keep rotation stable; if the rotating speed is higher than critical speed, the passive magnetic levitator will have Gyroeffect and thereby stabilize its rotation.
American Psychological Association (APA)
Qian, Kun-Xi& Jing, Teng& Wang, Hao. 2011. Applications of Permanent Maglev Bearing in Heart Pumps and Turbine Machine. ISRN Mechanical Engineering،Vol. 2011, no. 2011, pp.1-4.
https://search.emarefa.net/detail/BIM-506283
Modern Language Association (MLA)
Qian, Kun-Xi…[et al.]. Applications of Permanent Maglev Bearing in Heart Pumps and Turbine Machine. ISRN Mechanical Engineering No. 2011 (2011), pp.1-4.
https://search.emarefa.net/detail/BIM-506283
American Medical Association (AMA)
Qian, Kun-Xi& Jing, Teng& Wang, Hao. Applications of Permanent Maglev Bearing in Heart Pumps and Turbine Machine. ISRN Mechanical Engineering. 2011. Vol. 2011, no. 2011, pp.1-4.
https://search.emarefa.net/detail/BIM-506283
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506283