DISCLAIMER: This article is being kept online for historical purposes. Though accurate at last review, it is no longer being updated. The page may contain broken links or outdated information.
Conical bearingless motor-generators
Kascak, Peter Mechanical, Industrial, and Manufacturing Engineering Department, College of Engineering, University of Toledo, Toledo, Ohio.
Dever, Timothy Glenn Research Center, National Aeronautics and Space Administration, Cleveland, Ohio.
Jansen, Ralph Glenn Research Center, National Aeronautics and Space Administration, Cleveland, Ohio.
- Dedicated magnetic bearings
- Bearingless motor-generators
- Conical bearingless motor-generator
- CBMG control system
- Related Primary Literature
- Additional Reading
A motor-generator consists of a component that spins, called the rotor, and a stationary component, called the stator. The rotor is usually suspended from the stator by a mechanical bearing, such as a ball bearing, roller bearing, or journal bearing. This method of suspension makes sense for most applications, as it is very economical. However, certain high-performance applications either require or can be greatly enhanced by a noncontacting suspension system. In applications where the rotor moves at an extremely high speed (and the friction losses of a mechanical system would be prohibitively large), where access for bearing maintenance (for example, lubrication) is limited, or where long life is required (mechanical bearings are a wear item, and have a limited lifetime), a noncontacting suspension might be preferred. This article describes a noncontacting system in which the rotor is suspended on a magnetic field, allowing five-axis levitation with a new type of bearingless motor-generator.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information