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Performance of a superconducting large-angle magnetic suspensionSatCon Technology Corporation is working toward the development of an advanced-concept Control Moment Gyro (CMG). The advanced-concept CMG is sized for use as a slewing actuator for large space-based payloads. The design features a magnetically suspended composite rotor which contains a persistent-mode superconducting solenoid magnet. The rotor is suspended and gimballed by the interaction of the fields produced by the superconductor and an array of cryoresistive coils. The rotor spins in a liquid helium environment, while the control coils are liquid-hydrogen cooled. This design is capable of meeting the requirements of many high-performance slewing applications (27,000 Nm). The use of the magnetic suspension as rotor bearings, gimbal bearings, and gimbal torquers also substantially reduces the mass of the CMG system.
Document ID
19920018572
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Downer, James R.
(SatCon Technology Corp. Cambridge, MA, United States)
Bushko, Dariusz A.
(SatCon Technology Corp. Cambridge, MA, United States)
Gondhalekar, Vijay
(SatCon Technology Corp. Cambridge, MA, United States)
Torti, Richard P.
(SatCon Technology Corp. Cambridge, MA, United States)
Date Acquired
September 6, 2013
Publication Date
May 1, 1992
Publication Information
Publication: NASA. Langley Research Center, International Symposium on Magnetic Suspension Technology, Part 2
Subject Category
Mechanical Engineering
Accession Number
92N27815
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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