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Low power magnetic bearing design for high speed rotating machinery
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Studer, P. A. Allaire, P. E. Maslen, E. H. Humphris, R. R. Sortore, C. K. |
| Copyright Year | 1992 |
| Description | Magnetic suspension technology has advanced to the point of being able to offer a number of advantages to a variety of applications in the rotating machinery and aerospace fields. One strong advantage is the decrease in power consumption. The design and construction of a set of permanent magnet biased, actively controlled magnetic bearing for a flexible rotor are presented. Both permanent magnets and electromagnets are used in a configuration which effectively provides the necessary fluxes in the appropriate air gaps, while simultaneously keeping the undesirable destabilizing forces to a minimum. The design includes two radial bearings and a thrust bearing. The theoretical development behind the design is briefly discussed. Experimental performance results for a set of operating prototype bearings is presented. The results include measurements of load capacity, bearing stiffness and damping, and the dynamic response of the rotor. With few exceptions, the experimental results matched very well with the predicted performance. The power consumption of these bearings was found to be significantly reduced from that for a comparable set of all electromagnetic bearings. |
| File Size | 493865 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920018496 |
| Archival Resource Key | ark:/13960/t4xh4hn6k |
| Language | English |
| Publisher Date | 1992-05-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Dynamic Response Damping Energy Consumption Construction Rotors Turbomachinery Permanent Magnets Magnetic Bearings Design Analysis Prototypes Thrust Bearings High Speed Electromagnets Active Control Magnetic Suspension Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
