期刊
JOURNAL OF THE ASTRONAUTICAL SCIENCES
卷 67, 期 2, 页码 335-360出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s40295-019-00153-8
关键词
Structural dynamics; Solar sail; Flutter instability; Heliogyro solarelasticity
An analytical model is derived to study the structural dynamic stability behavior for the free-flying heliogyro solar sail consisting of a finite set of symmetric or evenly distributed thin blades on a flat surface. Key properties of the flutter instability are described in terms of the relationship among the eigenvalues and eigenvectors associated with a flutter instability frequency. Various simulation cases for an idealized single blade, fixed rotational speed heliogyro model, and a generalized multi-bladed, freely spinning heliogyro model are presented to show how the flutter instability frequencies change as a function of the solar radiation pressure and the size of the dynamic model. Convergence of the flutter instability frequency versus the system order is demonstrated.
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