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Design and test of a four channel motor for electromechanical flight control actuationTo provide a suitable electromagnetic torque summing approach to flight control system redundancy, a four channel motor capable of sustaining full performance after any two credible failures was designed, fabricated, and tested. The design consists of a single samarium cobalt permanent magnet rotor with four separate three phase windings arrayed in individual stator quadrants around the periphery. Trade studies established the sensitivities of weight and performance to such parameters as design speed, winding pattern, number of poles, magnet configuration, and strength. The motor electromagnetically sums the torque of the individual channels on a single rotor and eliminate complex mechanical gearing arrangements.
Document ID
19850008985
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Date Acquired
September 5, 2013
Publication Date
December 1, 1984
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
NAS 1.26:171838
NASA-CR-171838
S8308-R1
Accession Number
85N17294
Funding Number(s)
CONTRACT_GRANT: NAS9-16535
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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