ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
There is a magnetic field inside thrust bearing. The magnetic field distribution is one ofthe key factors which decide the running state and performance. With the finite element of ANSYSsoftware, the magnetic field of thrust bearing has been analyzed. The rule of changes between themagnetic field and the influencing factors has been discovered. The analysis shows that thedirection of exciting current should be opposite other than identical. The greater the ratio of gaplength between stator and rotor and working gap length is, the less magnetic field leakage is. Theflux leakage of thrust bearing attains 37 percent when the ratio of the gap is 4.0. If the design of acomplete machine is not proper, the flux leakage may attain 20 percent upwards through other gapsalthough that of the bearing itself is almost zero. Calculation of bearing capacity indicates thattheoretical value is not exact due to its neglect of magnetic saturation and flux leakage, while FEMvalue comparably matches the real substance with considering the magnetic saturation and fluxleakage. The research provides the theoretical basis for optimization of system structure andselection of current direction control
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.392-394.761.pdf
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