大面積柔軟膜面を有する軸対称スピン物体の姿勢安定条件

概要

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Stability of the dynamics of spinning spacecraft equipped with a large flexible membrane is discussed. The spin stability of an object having a flexible structure is deteriorated from that of a rigid object with the same shape in general, which makes a significant impact on the design of such spacecraft systems. This paper provides a fully analytical solution for the stability criteria of axisymmetric spinner spacecraft equipped with a large flexible membrane. Distinct from past studies, this paper does not impose restrictions on axial offset of the membrane attachment, and provides a stability condition using energy-angular momentum analysis when the membrane is subject only to an outer-plane first-order mode deformation. These criteria can be applied to the design of such missions as spinner solar sail spacecraft, large solar power satellite and other general spacecraft with large axisymmetric structures.
2010-07-05