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A Preliminary Study of Actuation Approaches for Lamina Emergent Mechanisms

[+] Author Affiliations
Paul S. Gollnick, Justin D. Black, Emily E. Savage, Landen A. Bowen, Spencer P. Magleby, Larry L. Howell

Brigham Young University, Provo, UT

Lifang Qiu

University of Science and Technology Beijing, Beijing, China

Paper No. DETC2011-48350, pp. 191-202; 12 pages
  • ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 6: 35th Mechanisms and Robotics Conference, Parts A and B
  • Washington, DC, USA, August 28–31, 2011
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5483-9
  • Copyright © 2011 by ASME


Lamina emergent mechanisms (LEMs) are made from sheet materials and have motion that emerges out of the fabrication plane. LEMs can be more compact, more cost effective, and more easily manufactured than many traditional mechanisms. Single-layer and multi-layer LEM designs could greatly benefit from suitable actuation techniques that are consistent with the advantages of these mechanisms. Bulky actuators may not be good choices for use with LEMs. This paper classifies forces and moments applicable to LEMs, shows how multi-layer LEMs can achieve emergent motion in simplified ways, and studies actuation methods for the macro scale. Shape memory alloys, piezo-electrics, and dielectric elastomers are explored as possible ways of setting LEMs into motion.

Copyright © 2011 by ASME
Topics: Mechanisms



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