衛星搭載用スピン軸方向伸展マストの伸展安定性と制振に関する実験

摘要

One of important issues to be addressed to realize the practical space inflatable structure is how to control the movement during its deployment or extension and how to harden the structure and maintain the accuracy of shape for a long term after extended. To resolve this issue, two types of inflatable structure have been developed by making use of structural rigidizing method. One is to keep stiffness of the structure consistently during and after the extension by the shape recovery of open section tubular member that is called SPINAR (Space Inflatable Actuated Rod to keep here in after). The other is to store the tube made of aluminum/PET laminate material into pentalpha folding to ensure straight-ahead movement during the extension and to be rigidized by work-hardening of structural material after the extension. With those two individual methods, experimental model were developed and evaluated through extension test under the low-gravity environment using the plane, Gulfstream-II in this study. Meanwhile, in this experiment , a semi-active controlled damper system using electro rheological fluid (ERF) damper was applied.%インフレータブル機構伸展実験は、想定される機械環境において安全で確実な伸展が確認され、予定したデータはすべて取得できた。これによってSPINARの概念および構造設計手法の妥当性が確認できた。実験データに基づき実機搭載を想定した解析の結果から、インフレータブル構造案は設定した要求を満足できると考える。