Linear Dynamic Modeling of Spacecraft with Open-Chain Assembly of Flexible Bodies for ACS/Structure Co-design

  • Jose Alvaro PerezEmail author
  • Daniel Alazard
  • Thomas Loquen
  • Christelle Cumer
  • Christelle Pittet


This work presents a method to build a linear dynamic model of openchain assembly of spacecraft flexible appendages for future Attitude Control System (ACS)/Structure co-design. This kind of modeling takes into account the flexible interactions between all the spacecraft substructures, called bodies or appendages, to finally provide the loads (forces and torques) induced to the main body. More generally, this method can be applied to any open mechanical chain, such as segments of robotic arms, segments of antenna mast or masts linking solar panels to the main hub. Therefore, the dynamics model of the entire spacecraft can be derived easily in order to design the spacecraft ACS. The method is based on the Craig-Bampton modal synthesis, from which a state-space representation is obtained.


Multibody System Connection Point Attitude Control System Linear Time Invariant Linear Dynamic Modeling 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Jose Alvaro Perez
    • 1
    Email author
  • Daniel Alazard
    • 2
  • Thomas Loquen
    • 1
  • Christelle Cumer
    • 1
  • Christelle Pittet
    • 3
  1. 1.ONERAToulouseFrance
  2. 2.ISAEToulouseFrance
  3. 3.CNESToulouseFrance

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