Impact of including electronics design on design of intelligent structures: Applications to multifunctional structures for attitude control (MSAC)

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

Abstract

Multifunctional Structures for Attitude Control (MSAC) is a new spacecraft attitude control system that utilizes deployable panels as multifunctional intelligent structures to provide both fine pointing and large slew attitude control. Previous studies introduced MSAC design and operation concepts, simulation-based design studies, and Hardware-in-the-Loop (HIL) validation of a simplified prototype. In this article, we expand the scope of design studies to include individual compliant piezoelectric actuators and associated power electronics. This advance is a step toward high-fidelity MSAC system operation, and reveals new design insights for further performance enhancement. Actuators are designed using pseudo rigid body dynamic models (PRBDMs), and are validated for steady-state and step responses against Finite Element Analysis. The drive electronics model consists of a few distinct topologies that will be used to evaluate system performance for given mechanical and control system designs. Subsequently, a high-fidelity multiphysics multibody MSAC system model, based on the validated compliant actuators and drive electronics, is developed to support implementation of MSAC Control Co-design optimization studies. This model will be used to demonstrate the impact of including the power electronics design in the Optimal Control Co-Design domain. The different control trajectories are compared for slew rates and the vibrational jitter introduced to the satellite. The results from this work will be used to realize closed-loop control trajectories that have minimal jitter introduction while providing high slew rates.

Original languageEnglish (US)
Title of host publicationASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2020
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791884027
DOIs
StatePublished - 2020
EventASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2020 - Virtual, Online
Duration: Sep 15 2020 → …

Publication series

NameASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2020

Conference

ConferenceASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2020
CityVirtual, Online
Period9/15/20 → …

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Biomaterials

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