Solution Structure of Gossamer Multi-body Dynamics

本研究阐明了由薄膜和拉索组成的薄壁结构和航天器主体等支撑结构组成的薄壁多体结构的变形和动力学特性。研究内容包括理论阐述、数值模拟和地面实验。将所提出的理论和数值方法应用于由日本宇宙航空研究开发机构研制的小型太阳帆演示器“IKAROS”的设计和研制中，并与IKAROS的飞行数据进行了对比，在空间上证明了其有效性。最后，提出了一种新的薄纱结构分析方法，为该结构的实用化提供了参考。

This research clarified the characteristics of the deformation and the dynamics of the gossamer multi-body structure, which consists of the gossamer structure, i.e. thin membrane and cable, and its back-up structure such as the spacecraft main body. The research includes the formulation of the theory, numerical simulation, and the ground experiment. The proposed theory and the numerical method were applied to the design and the development of the small solar sail demonstrator “IKAROS” developed by JAXA, and their validity was proved in space by comparing with the flight data of IKAROS. Finally, a new analytical method of gossamer structure was proposed to contribute to put the structure into practical use.