Influence of defects of a hysteretic damper on satellite stabilization

Details Influence of defects of a hysteretic damper on satellite stabilization Influence of defects of a hysteretic damper on satellite stabilization

Mar 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975kosis..13..147k&link_type=abstract

Kosmicheskie Issledovaniia, vol. 13, Mar.-Apr. 1975, p. 147-152. In Russian.

Physics

Gravity Gradient Satellites, Hysteresis, Spacecraft Stability, Vibration Isolators, Energy Conversion, Kinetic Energy, Magnetic Materials, Magnetic Moments, Satellite Rotation, Vibration Damping

Scientific paper

The perturbed angular position of a satellite employing gravity-graded stabilization and equipped of orthogonal damping rods consisting of a soft-magnetic material is examined. Vibrations are damped by a mechanism where the excess kinetic energy of the satellite vibrations is converted into hysteresis heat during the magnetic reversal of the damper material in the geomagnetic field. A damper of this type, however, can excite small vibrations of the satellite about the center of mass, due to a deviation of the resulting magnetic moment of the damper from the geomagnetic field vector. The amplitude and resonances of the vibrations are determined from a solution of the equation of angular motion of the satellite.

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