Attitude control system complexity reduction via tailored viscoelastic damping co-design

Chendi Lin, Daniel R. Herber, V. Vedant, Yong Hoon Lee, Alexander Ghosh, Randy H. Ewoldt, James T. Allison

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


Intelligent structures utilize distributed actuation, such as piezoelectric strain actuators, to control flexible structure vibration and motion. A new type of intelligent structure has been introduced recently for precision spacecraft attitude control. It utilizes lead zirconate titanate (PZT) piezoelectric actuators bonded to solar arrays (SAs), and bends SAs to use inertial coupling for small-amplitude, high-precision attitude control and active damping. Integrated physical and control system design studies have been performed to investigate performance capabilities and to generate design insights for this new class of attitude control system. Both distributedand lumped-parameter models have been developed for these design studies. While PZTs can operate at high frequency, relying on active damping alone to manage all vibration requires high-performance control hardware. In this article we investigate the potential value of introducing tailored distributed viscoelastic materials within SAs as a strategy to manage higher-frequency vibration passively, reducing spillover and complementing active control. A case study based on a pseudo-rigid body dynamic model (PRBDM) and linear viscoelasticity is presented. The tradeoffs between control system complexity, passive damping behavior, and overall dynamic performance are quantified.

Original languageEnglish (US)
Title of host publicationGuidance, navigation, and control, 2018
EditorsCheryl A. H. Walker
PublisherUnivelt Inc.
Number of pages13
ISBN (Print)9780877036494
StatePublished - Jan 1 2018
Event41st Annual AAS Rocky Mountain Section Guidance and Control Conference, 2018 - Breckenridge, United States
Duration: Feb 1 2018Feb 7 2018

Publication series

NameAdvances in the Astronautical Sciences
ISSN (Print)0065-3438


Other41st Annual AAS Rocky Mountain Section Guidance and Control Conference, 2018
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science


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