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Related Experiment Video

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Limpet II: A Modular, Untethered Soft Robot.

Mohammed E Sayed1, Jamie O Roberts1,2, Ross M McKenzie1,2

  • 1Institute for Integrated Micro and Nano Systems, Scottish Microelectronics Centre, School of Engineering, The University of Edinburgh, Edinburgh, United Kingdom.

Soft Robotics
|August 9, 2020
PubMed
Summary
This summary is machine-generated.

A new modular, untethered robot, Limpet II, uses hybrid hard/soft technology for offshore platform inspection. It features electromagnetic adhesion and slip-stick locomotion, enabling versatile climbing and sensing capabilities.

Keywords:
adhesionclimbingelectromagnetic actuatormodularrobotsoft

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Area of Science:

  • Robotics
  • Mechanical Engineering
  • Materials Science

Background:

  • Robots for inspecting offshore platforms need to navigate complex environments and climb inclined surfaces.
  • Current climbing robots often lack modularity and untethered soft actuation.
  • Existing systems face challenges in adaptability, repair, and reconfiguration for diverse tasks.

Purpose of the Study:

  • To introduce Limpet II, a modular, untethered hybrid hard/soft robot for offshore inspection.
  • To demonstrate the robot's capabilities in adhesion, locomotion, and multi-modal sensing.
  • To showcase the advantages of a modular design for task adaptability and maintenance.

Main Methods:

  • Development of Limpet II, a 450g modular robot with hybrid electromagnetic core.
  • Implementation of negative pressure adhesion using suction cups for robust attachment.
  • Utilization of slip-stick locomotion for controlled movement on surfaces.
  • Integration of a sensor payload with nine sensing modalities for comprehensive monitoring.

Main Results:

  • Limpet II successfully demonstrated adhesion to various materials and climbing on inclined surfaces.
  • The robot showed responsiveness to sensory inputs and repositioning capabilities within its environment.
  • The modular design allowed for reconfiguration, highlighting its adaptability for multiple inspection tasks.

Conclusions:

  • Limpet II presents a significant advancement in untethered, modular climbing robots for offshore environments.
  • Its hybrid hard/soft design and multi-modal sensing offer enhanced inspection and monitoring capabilities.
  • The robot's modularity and adaptability pave the way for future robotic solutions in harsh industrial settings.