Simple Analysis of Prolate-Spin Attitude Stability
縦長スピン姿勢安定の簡易解析

Sei-ichiro Kawase
2006 JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES  
How can a prolate spacecraft spinning about its axis of minimum moment of inertia be attitude-stabilized by using dual spin? To this question, we find a simple, clear answer. We replace the spacecraft with an equivalent pointmass model and describe its attitude motion as small deviations from its nominal attitude. We show that a friction-like torque applied to the spin axis would reduce wobble motions, and that a similar torque is generated by a wobble damper on a de-spun platform. Thus, we
more » ... tform. Thus, we derive a simple attitude-stability theory using minimal mathematical analysis, and this theory is applicable to the spin stabilization of geosynchronous communication spacecraft. ( 464 )
doi:10.2322/jjsass.54.461 fatcat:fdmkfs574rh7ngfbckh3m25b2u