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Origami-based tunable truss structures for non-volatile mechanical memory operation.

Hiromi Yasuda1, Tomohiro Tachi2, Mia Lee1

  • 1Department of Aeronautics & Astronautics, University of Washington, Seattle, WA, 98195-2400, USA.

Nature Communications
|October 19, 2017
PubMed
Summary
This summary is machine-generated.

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Researchers developed volumetric origami cells for mechanical memory. These triangulated cylindrical origami (TCO) structures can store one or two bits of information non-volatilely, offering tunable stability and stiffness for advanced applications.

Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Nanotechnology

Background:

  • Origami principles are increasingly used to design novel metamaterials with unique kinematic properties.
  • Existing research primarily focuses on planar origami for compactness and auxeticity, limiting volumetric applications.
  • There is a need for volumetric building blocks with tunable mechanical properties for advanced functionalities.

Purpose of the Study:

  • To introduce volumetric origami cells, specifically triangulated cylindrical origami (TCO), with tunable stability and stiffness.
  • To demonstrate the feasibility of TCO cells as non-volatile mechanical memory storage devices.
  • To explore the potential for multi-bit mechanical memory using interconnected TCO units.

Main Methods:

  • Design and fabrication of triangulated cylindrical origami (TCO) cells.

Related Experiment Videos

  • Theoretical prediction and experimental verification of TCO cell folding behavior (axial and rotational movements).
  • Assembly of TCO-based truss structures to demonstrate mechanical memory prototypes.

    • Main Results:

    • A single pair of TCO cells can create a double-well potential, enabling one-bit mechanical memory storage.
    • Interconnected TCO cell pairs demonstrate two-bit mechanical memory, with one pair controlling the other.
    • Experimental validation of tunable TCO unit properties and successful operation of one- and two-bit mechanical memory prototypes.

    Conclusions:

    • Volumetric origami cells (TCO) offer a promising platform for non-volatile mechanical memory.
    • The tunable stability and stiffness of TCO units allow for precise control over memory states.
    • This work paves the way for developing complex mechanical memory systems using origami-based structures.