Numerical Analysis and Dynamics of Large Deployable Membrane Structures
Project/Area Number |
21560826
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Aerospace engineering
|
Research Institution | Japan Aerospace Exploration Agency |
Principal Investigator |
OKUIZUMI Nobukatsu 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 助教 (10321564)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
Keywords | 膜面構造物 / ダイナミクス / 数値シミュレーション / 遠心力展開 / 真空槽実験 / 振動モード / 回転円形膜 / 加振実験 / 固有値解析 / 座屈 / 折り目 / 接触 / 回転膜面 / 強制加振 / 真空実験 |
Research Abstract |
In order to develop large membrane deployable structures, a multiple particle system model which is suited for efficient numerical analysis of membrane dynamics was developed and centrifugal deployment behaviors and vibration characteristics of membranes are studied. By inventing a model for crease stiffness and contact and adjusting the models for buckling and damping, it was confirmed that the numerical method could properly simulate small-scale centrifugal deployment experiments in vacuum. Vibration modes of a rotating circular membrane are also measured by creating an equipment which can rotate and shake a membrane simultaneously. The experimental results were compared with vibration mode analysis.
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Report
(4 results)
Research Products
(22 results)