Influence of internal disterbance on the high precision pointing and stabilization of attitude of flexible spacecrafts

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05870
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Osaka Prefecture University
• Principal Investigator: Chiba Masakatsu 大阪府立大学, 工学(系)研究科(研究院), 教授 (10179955)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 流体関連振動 / スロッシング / 膜カバー / 柔軟宇宙機

Outline of Final Research Achievements

Model I Flexible spacecraft with liquid in tank on-board. Hydroelastic free vibration was analysed by considering the main body of the spacecraft as a rigid tank, the flexible appendages as two elastic beams, and on-board liquid as an ideal liquid considering the meniscus of free surface.
Model II Semi-spherical tank coverd with elastic diaphragm. Coupled free vibration and dynamic stability were investigated in both experimentally and theoretically. In the analysis, plane membrane diaphgram was considered, while in the expriment semi-spherical diaphragm was also tested.

Free Research Field

構造動力学