0

Full Content is available to subscribers

Subscribe/Learn More  >

Analysis of the Segmented Displaced Trapezoidal Winding for Force and Torque Production as a Self Bearing Motor

[+] Author Affiliations
Lyndon Scott Stephens, Daniel Impellizzeri

University of Kentucky, Lexington, KY

Paper No. GT2005-68075, pp. 651-660; 10 pages
doi:10.1115/GT2005-68075
From:
  • ASME Turbo Expo 2005: Power for Land, Sea, and Air
  • Volume 4: Turbo Expo 2005
  • Reno, Nevada, USA, June 6–9, 2005
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4727-6 | eISBN: 0-7918-3754-8
  • Copyright © 2005 by ASME

abstract

Self bearing motors have been identified as a potential technology for oil free turbomachinery where integral starter generator (ISG) technology may be used, among others. One of the key advantages of self bearing motors is that they reduce the shaft length of machines, hence increasing the rotordynamic performance. Until now, research has yielded self bearing motors that produce motoring torque and active force control of either the radial forces or the thrust force. In this paper, a new self bearing motor winding is analyzed for its potential to simultaneously produce actively controlled torque, radial forces and thrust force. The benefit of such a design is that the shaft length can be reduced even further as both the radial bearing and thrust bearing functions are performed by the motor. Experimental results are presented that verify the force and torque production capability of the motor to within 14% of the theoretical predictions. Another benefit of the motor is its ability to be used for large axial (thrust) movements, such that it could be used in precision axial positioning of high speed rotating loads over a large range (up to 25 mm or so for a 25 mm diameter rotor).

Copyright © 2005 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In