Spatial oscillations of an axisymmetric spacecraft at arbitrary angles of attack during descent in a planetary atmosphere

Details Spatial oscillations of an axisymmetric spacecraft at arbitrary angles of attack during descent in a planetary atmosphere Spatial oscillations of an axisymmetric spacecraft at arbitrary angles of attack during descent in a planetary atmosphere

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981kosis..19..680a&link_type=abstract

Kosmicheskie Issledovaniia, vol. 19, Sept.-Oct. 1981, p. 680-687. In Russian.

Physics

Angle Of Attack, Atmospheric Entry, Planetary Atmospheres, Satellite Perturbation, Spacecraft Motion, Descent, Equations Of Motion, Spacecraft Configurations, Spatial Distribution

Scientific paper

Volosov's (1963) method for a spacecraft of arbitrary axisymmetric configuration is used to obtain averaged equations of motion in an integrodifferential form for the oscillations of the spacecraft during its descent in a planetary atmosphere at arbitrary angles of attack. These equations are reduced to ordinary differential equations under the condition that the coefficient of the restoring moment is represented by an almost-sinusoidal dependence on angle of attack. Numerical results show that these equations are also applicable in the case of a significant deviation of the coefficient of the restoring moment from the sine of the angle of attack. An approximate formula is obtained that determines the amplitude of angle-of-attack oscillations in the case of quasi-two-dimensional motion.

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