Evaluation of transient response of spinning solar sail with flexible membrane by eigenfunction analysis and continuum analysis

Toshihiro Chujo, Junichiro Kawaguchi

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This study is about evaluating the transient response of large spinning membrane structures in space - especially for spinning solar sails - by two different methods. The flexible sail membrane easily deforms when the spacecraft changes its attitude using thrusters, for example, and the control response including the membrane vibration must be estimated during the actual operation. In order to estimate the motion of the membrane, a numerical method using a multi-particle model is utilized referred to as the continuum analysis in this study. This method is useful for analysis of membrane vibration because it replaces the complex dynamics with simple equations of motion. However, the calculation cost is high and it requires a considerable amount of time. This study introduces the eigenfunction analysis to solve this problem. In this method, the natural vibration modes and the natural frequencies of the whole spacecraft are derived, which reduces the cost dramatically compared to the conventional continuum analysis. In this study, the transient response of a spinning solar sail is analysed using both methods, and advantages and disadvantages are discussed. It is shown that the eigenfunction analysis provides a suitable method to acquire approximate solutions in a very short time.

本文言語English
ホスト出版物のタイトル65th International Astronautical Congress 2014, IAC 2014
ホスト出版物のサブタイトルOur World Needs Space
出版社International Astronautical Federation, IAF
ページ5648-5654
ページ数7
ISBN(電子版)9781634399869
出版ステータスPublished - 2014
外部発表はい
イベント65th International Astronautical Congress 2014: Our World Needs Space, IAC 2014 - Toronto, Canada
継続期間: 2014 9 292014 10 3

出版物シリーズ

名前Proceedings of the International Astronautical Congress, IAC
8
ISSN(印刷版)0074-1795

Other

Other65th International Astronautical Congress 2014: Our World Needs Space, IAC 2014
国/地域Canada
CityToronto
Period14/9/2914/10/3

ASJC Scopus subject areas

  • 航空宇宙工学
  • 天文学と天体物理学
  • 宇宙惑星科学

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