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Dynamics Modeling and Attitude Control for a Telescope Satellite with Large Inertia

  • School of Astronautics, Harbin Institute of Technology
  • Shanghai Aerospace Control Technology Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The dynamics of a 70m large-size and large-inertia flexible telescope satellite is analyzed in this paper and establishes its dynamics equations under unconstrained mode. Considering the large inertia of flexible attachment, the consistent mass matrix is used to describe its mass characteristic, which is different from traditional flexible satellites. The calculation method of the translational and rotational coupling coefficients is given. We expand the mode coordinates and solve the generalized characteristic equation to obtain the unconstrained modal frequency. The result is similar to the ANSYS software. The stable attitude control simulation is carried out using the adaptive sliding mode controller, which illustrates the coupling characteristics of the large-size flexible structure and verifies the dynamics model.

Original languageEnglish
Title of host publicationProceeding - 2021 China Automation Congress, CAC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3440-3445
Number of pages6
ISBN (Electronic)9781665426473
DOIs
StatePublished - 2021
Externally publishedYes
Event2021 China Automation Congress, CAC 2021 - Beijing, China
Duration: 22 Oct 202124 Oct 2021

Publication series

NameProceeding - 2021 China Automation Congress, CAC 2021

Conference

Conference2021 China Automation Congress, CAC 2021
Country/TerritoryChina
CityBeijing
Period22/10/2124/10/21

Keywords

  • attitude control
  • dynamics model
  • flexible
  • telescope satellite
  • unconstrainedmode

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