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

Toshihiro Chujo, Junichiro Kawaguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication65th International Astronautical Congress 2014, IAC 2014
Subtitle of host publicationOur World Needs Space
PublisherInternational Astronautical Federation, IAF
Pages5648-5654
Number of pages7
ISBN (Electronic)9781634399869
Publication statusPublished - 2014
Externally publishedYes
Event65th International Astronautical Congress 2014: Our World Needs Space, IAC 2014 - Toronto, Canada
Duration: 2014 Sep 292014 Oct 3

Publication series

NameProceedings of the International Astronautical Congress, IAC
Volume8
ISSN (Print)0074-1795

Other

Other65th International Astronautical Congress 2014: Our World Needs Space, IAC 2014
Country/TerritoryCanada
CityToronto
Period14/9/2914/10/3

ASJC Scopus subject areas

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Space and Planetary Science

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