Active shape control of membrane structures using spin-synchronous vibrations

Yuki Takao, Osamu Mori, Masanori Matsushita, Nobukatsu Okuizumi, Yasutaka Satou, Jun’Ichiro Kawaguchi

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

Abstract

A novel approach for shape control of membrane structures is presented. The shape control is accomplished by exciting a spinning membrane. The membrane forms a shape consisting of several vibration modes, depending on the input frequency, and the wave surface stands still when its frequency is synchronized with the spin; that is, the wave propagation and the spin cancel each other, resulting in a static wave surface in the inertial frame. This paper describes the general theory of the static wave-based shape control. The mathematical model of membrane vibration, classification of control input, and the control system for exciting a static wave are summarized. The proposed method is demonstrated through a ground experiment. A 1 m large polyimide film is rotated and is vibrated in a vacuum chamber, and the output shape is measured using a real-time depth sensor. The nonlinear dynamics of membrane deformation under both the ground and space environments is simulated using a numerical method, showing the validity and effectiveness of the shape control method.

Original languageEnglish
Title of host publicationAIAA Scitech 2021 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-22
Number of pages22
ISBN (Print)9781624106095
DOIs
Publication statusPublished - 2021
Externally publishedYes
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
Duration: 2021 Jan 112021 Jan 15

Publication series

NameAIAA Scitech 2021 Forum

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online
Period21/1/1121/1/15

ASJC Scopus subject areas

  • Aerospace Engineering

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