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An active nutation damper for spacecraft (1977)

Abercrombie, R. A. ; Flatley, T. W.

In: CASI

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Publication Date: 2016-06-07

Description: An active nutation damping device, consisting of an angular accelerometer, a dc-motor-driven flywheel, and associated electronics, developed for spacecraft use is described. This damping system was used on the LAGEOS spacecraft to control nutation buildup during the long coast period (approximately 75 minutes) after the third stage separation. The damper package was evaluated and proven on a three-axis gas-bearing simulator that duplicated the LAGEOS spacecraft critical flight dynamics. In addition, a failure analysis of the damper assembly was performed. Performance of the damper during the LAGEOS flight has confirmed the preflight evaluation and analysis.

Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE

Type: The 11th Aerospace Mech. Symp.; p 133-145

Format: application/pdf

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