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Fabrication of Soft Pneumatic Network Actuators with Oblique Chambers
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Pressure-Based Soft Agents.

Federico Pigozzi1

  • 1University of Trieste Department of Engineering and Architecture. pigozzife@gmail.com.

Artificial Life
|November 21, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed pressure-based soft agents (PSAs) for artificial life and soft robotics. These agents effectively perform locomotion and manipulation tasks, especially those needing shape changes.

Keywords:
Embodied cognitionevolutionary roboticsshape changesoft robotics

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Area of Science:

  • Robotics
  • Artificial Life (ALife)
  • Biomimicry

Background:

  • Biological agents possess soft bodies, inspiring research in Artificial Life (ALife) and soft-bodied robotics.
  • Soft bodies present significant challenges in simulation, control, and optimization due to infinite degrees of freedom.

Purpose of the Study:

  • To introduce a novel formalism for soft-bodied agents called pressure-based soft agents (PSAs).
  • To demonstrate the effectiveness of PSAs in various tasks, including locomotion, escape, and object manipulation.

Main Methods:

  • PSAs are modeled as spring-mass membranes containing a pressurized medium.
  • Softness is simulated using springs and masses, allowing diverse shape configurations.
  • Agents actuate locally (spring resting lengths) and globally (pressure modulation).

Main Results:

  • Optimized PSA controllers were tested on locomotion, cage escape, and object manipulation tasks.
  • PSAs demonstrated effectiveness across all tested tasks.
  • Performance was particularly notable in tasks requiring significant shape alteration.

Conclusions:

  • Pressure-based soft agents (PSAs) offer a viable approach for simulating and controlling soft-bodied systems.
  • PSAs show promise for applications in soft robotics and modeling biological cells.