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Nutation damper for the AMPTE-IRM satellite: Final ReportThe design, computations, and testing of the nutation damper for the AMPTE-IRM satellite are described. The nutation motions of the satellite excite fluid oscillations in the closed tube system; kinetic energy is destroyed (converted to heat) through tube/fluid friction, constriction of the stream by cross sectional change, and formation of turbulence by stream enlargement. This energy is extracted from the satellite such that nutation is reduced. Tests were carried out in a pendulum testing device and the time constants were calculated. Findings showed that the damper remained within the originally specified values and provided for good dynamic behavior of the satellite.
Document ID
19840006160
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Truckenbrodt, A. (NASA Headquarters Washington, DC United States)
Schultysik, B. (NASA Headquarters Washington, DC United States)
Mehltretter, J. P. (NASA Headquarters Washington, DC United States)
Date Acquired
September 4, 2013
Publication Date
April 1, 1983
Subject Category
Launch Vehicles And Space Vehicles
Report/Patent Number
NASA-TM-77330
NAS 1.15:77330
Accession Number
84N14228
Funding Number(s)
CONTRACT_GRANT: NASW-3542
CONTRACT_GRANT: TC-NO-017-TRU-SCHO/SA
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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