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A remotely controlled Marangoni surfer.

Mitchel L Timm1, Saeed Jafari Kang1, Jonathan P Rothstein2

  • 1Department of Mechanical Engineering-Engineering Mechanics, Michigan Technological University, Houghton, MI 49931, United States of America.

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Summary
This summary is machine-generated.

This study introduces a novel self-powered robotic surfer that mimics natural locomotion. The robot utilizes controlled propellant release to modify surface tension for propulsion and steering, achieving speeds of 0.8 body lengths per second.

Keywords:
Marangoni effectremotely controlledself-poweredsurfing robot

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Area of Science:

  • Robotics
  • Fluid Dynamics
  • Biomimetics

Background:

  • Nature-inspired locomotion on the air-water interface.
  • Challenges in controlling movement at the air-water boundary.

Purpose of the Study:

  • To develop a self-powered, remotely controlled robotic surfer.
  • To harness surface tension modification for propulsion and steering.
  • To investigate the relationship between propellant release rate and robot speed.

Main Methods:

  • Designing and implementing novel release valve and steering mechanisms.
  • Utilizing controlled release of isopropyl alcohol to alter surface tension.
  • Testing robot performance, including speed and maneuverability.

Main Results:

  • The robotic surfer measures 110 mm and achieves speeds up to 0.8 body lengths per second.
  • Robot speed follows a 1/3 power law with the propellant release rate.
  • The robot can withstand 20 mm/s² centripetal acceleration during turns.

Conclusions:

  • The developed robotic surfer demonstrates distinct capabilities in air-water interface locomotion.
  • The study provides insights into surface tension modification for robotic propulsion.
  • The design and performance limitations of the robotic surfer are discussed.