非定常过渡下萨马拉型减速器的稳定性判据

The Aeronautical Journal (1968) Pub Date : 2022-12-02 DOI:10.1017/aer.2022.95

H.-C. Wang, R. Breidenthal

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引用次数: 0

摘要

天然萨马拉斯或生物启发的萨马拉斯转变为稳定自旋背后的物理原理尚不清楚。理论和实验研究探讨了保证人工萨马拉式减速器从混沌翻滚运动到方位自旋稳定过渡所需的惯性和气动特性。提出了无量纲惯性判据，与实验结果一致。

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Stability criteria of Samara-like decelerator in unsteady transitions

The physics behind the transitions of natural Samaras, or the bio-inspired counterparts, to steady autorotation has been unclear. Theoretical and experimental investigations explore the inertial and aerodynamic characteristics required to guarantee stable transitions of an artificial Samara-like decelerator from chaotic tumbling motions to azimuthal autorotation. A non-dimensional inertial criterion is proposed, which is in accord with experiments.

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The Aeronautical Journal (1968)

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