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Reconfigurable Trusses of Nonlinear Morphing Elements

[+] Author Affiliations
Chrysoula Aza, Alberto Pirrera, Mark Schenk

University of Bristol, Bristol, UK

Paper No. DETC2018-85911, pp. V05BT07A004; 10 pages
doi:10.1115/DETC2018-85911
From:
  • ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5B: 42nd Mechanisms and Robotics Conference
  • Quebec City, Quebec, Canada, August 26–29, 2018
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5181-4
  • Copyright © 2018 by ASME

abstract

Reconfigurable mechanisms are capable of changing their behavior during operation and perform different tasks through changes of their configuration. A compliant, multistable, reconfigurable mechanism is introduced which consists of nonlinear morphing elements assembled in a truss-like configuration. These constituent elements are made of composite strips assembled to form a double-helix and exhibit tailorable nonlinear stiffness characteristics, including bistability. The mechanism’s behavior can be tailored by tuning the inherent properties of the helical components, leading to a wide range of responses. This work explores the reconfigurability of the mechanism, based on the ability to change the helical pitch and the resulting stiffness.

Copyright © 2018 by ASME

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