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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Bio-inspired Control of Structures

Deployable tensegrity using shape memory alloy springs

< Table of Contents for Bio-inspired Control of Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Bio-inspired Control of Structures
  • Pages: 10
  • Title: Deployable tensegrity using shape memory alloy springs
  • Author(s): Xian Xu, Huiying Cai, Yaozhi Luo
  • Keywords: deployable tensegrity, SMA springs, folded state, deployment path
Abstract
Tensgrity systems composed of tension elements and compression elements have potential to be used as deployable structures due to the unilateral stiffness of tension elements. In this paper, a new concept of deployable tensegrity using shape memory alloy (SMA) springs is proposed. Two different deployment schemes are considered according to the tension/slack state of tension elements during deployment. In the first scheme, tension elements are allowed to be slack, leading to quite flexible fold. The deployment path considering dynamic effect or not is analyzed via ADAMS and dynamic relaxation method respectively. In the second scheme, tension elements are required to be in tension and the deployment path is determined on the equilibrium manifold. A proof-of-concept model is manufactured to verify the feasibility of the proposed new concept of deployable tensegrities using SMA springs.

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