Aeronautics and astronautics – Spacecraft – Attitude control
Patent
1989-04-25
1990-05-22
Barefoot, Galen
Aeronautics and astronautics
Spacecraft
Attitude control
244170, B64G 124, B64G 138
Patent
active
049271016
ABSTRACT:
In order to shift the moment of inertia H.sub.i of a body in rotation initially in rotation approximately about its principal axis of inertia Z into any given orientation H.sub.F one applies transversely to the axis Z three torque impulses in a plane containing H.sub.i and H.sub.F, the first for a time T.sub.1, such that, at the end of one rotation of a satellite about itself, the axis Z shifts to Z.sub.1 in the plane bisecting H.sub.i and H.sub.F, whilst the kinetic moment moves to H.sub.1, the second impulse at the instant when the principal axis of inertia is at Z.sub.1 for a time T.sub.2 appropriate to shift the kinetic moment into a position H.sub.2 symmetrical with H.sub.1 with respect to this bisecting plane, and the third impulse at the instant when the principal axis of inertia is parallel to H.sub.F for a duration equal to T.sub.1.
REFERENCES:
patent: 3558078 (1971-01-01), Lauzaro
patent: 3944172 (1976-03-01), Becker
patent: 4193570 (1980-03-01), Hoffman et al.
patent: 4504032 (1985-03-01), Phillips et al.
patent: 4848706 (1989-07-01), Gary et al.
Aerospatiale - Societe Nationale Industrielle
Barefoot Galen
LandOfFree
Method for tilting the moment of inertia of a rotating free body does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for tilting the moment of inertia of a rotating free body, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for tilting the moment of inertia of a rotating free body will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2128280