A Liquid Nutation Damper for the Satellite EQUATOR-S(Ein Fluessigkeitsnutationsdaempfer fuer den Satellit EQUATOR-S)

Abstract

For the layout of a nutation damper for the EQUATOR-S satellite, a nutation damper with two identically symmetrical liquid dampers was observed. The damper consists of two pipes with a circular diameter. At the satellite's given moments of inertia, as well as at its spin frequency, certain restrictions with regard to the damper's geometry were calculated so that a good nutation damping with booms swinging both inward and outward was ensured. The dampers were constructed along these parameters and tested in an air-set pendulum. The theoretical damping on the pendulum was measured and compared with the experiment, with the results concurring to a great degree.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2001
Accession Number
ADA409246

Entities

People

  • Bernd Hausler
  • Werner Eidel

Organizations

  • Bundeswehr University Munich

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Amplitude
  • Artificial Satellites
  • Classification
  • Diameters
  • Frequency
  • Geometry
  • Information Operations
  • Military Forces (Foreign)
  • Monitoring
  • Pendulums
  • Plexiglas
  • Security

Readers

  • Control Systems Engineering.
  • Snow Cover Descriptors for Reptiles and Their Illustrations.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Orbital Debris