NASA NTRS · 19720022782
High torque CMG rotary actuator
Abstract
A high torque rotary actuator was designed, fabricated and tested. Exacting requirements were placed on performance and physical characteristics of the actuator, particularly in the area of stiffness, backlash, torque ripple, power and size and weight. A brushless dc motor was designed utilizing rare earth magnets to meet power and weight requirements. A 26-to-1 planetary roller gear transmission was selected to best meet overall requirements. The transmission utilizes parallel gear and roller paths to minimize backlash and breakaway torque.
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1972-06-01. High torque CMG rotary actuator. https://ntrs.nasa.gov/citations/19720022782
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