- #1
eichfeld
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I am not really solving an exercise for homework so hopefully this general forum is OK for my question.
For my thesis, what is attitude control of a flying object with a reaction wheel, I am learning the basics from this NASA Technical Report:
http://www.hot.ee/ronn/design_glob_anal_ spacecraft _att_control.pdf (I mirrored it because currently NASA website publishing this is down)
Things are quite clear to me until eq (22) in PDF page 20, where the 3rd term is "gyroscopic coupling". I am unfamiliar with this phenomenon and can not grasp it from the equation. Could someone please explain me the meaning of this term? I do not see how can change of angular velocity depend only in the current velocity. Is it somehow the same thing as precession?
For my thesis, what is attitude control of a flying object with a reaction wheel, I am learning the basics from this NASA Technical Report:
http://www.hot.ee/ronn/design_glob_anal_ spacecraft _att_control.pdf (I mirrored it because currently NASA website publishing this is down)
Things are quite clear to me until eq (22) in PDF page 20, where the 3rd term is "gyroscopic coupling". I am unfamiliar with this phenomenon and can not grasp it from the equation. Could someone please explain me the meaning of this term? I do not see how can change of angular velocity depend only in the current velocity. Is it somehow the same thing as precession?
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