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Exploiting short-term memory in soft body dynamics as a computational resource.

K Nakajima1, T Li2, H Hauser2

  • 1The Hakubi Center for Advanced Research, Kyoto University, 606-8501 Kyoto, Japan Department of Applied Analysis and Complex Dynamical Systems, Graduate School of Informatics, Kyoto University, 606-8501 Kyoto, Japan jc_mc_datsu@yahoo.co.jp.

Journal of the Royal Society, Interface
|September 5, 2014
PubMed
Summary
This summary is machine-generated.

Soft body dynamics in deformable materials can perform computations. Researchers used a silicone arm to show these dynamics can emulate memory functions and enable robust control, suggesting a new computational resource.

Keywords:
morphological computationoctopusphysical reservoir computingsoft robots

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Area of Science:

  • Robotics
  • Materials Science
  • Computational Science

Background:

  • Soft materials exhibit complex body dynamics, including nonlinearity and elasticity.
  • These dynamics possess numerous degrees of freedom, offering potential for advanced applications.

Purpose of the Study:

  • To demonstrate that soft body dynamics can be utilized for computation.
  • To explore the potential of soft materials as a computational resource.

Main Methods:

  • Utilizing body dynamics generated from a soft silicone arm.
  • Emulating computational functions, including memory and control, through passive dynamics.

Main Results:

  • Soft body dynamics were shown to emulate functions requiring memory.
  • Robust closed-loop control was successfully embedded into the soft silicone arm.
  • The study suggests soft body dynamics possess inherent short-term memory capabilities.

Conclusions:

  • Soft body dynamics can serve as a viable computational resource.
  • Exploiting passive dynamics offers a novel approach for controlling underactuated systems.