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Related Concept Videos

Force On A Current Loop In A Magnetic Field01:17

Force On A Current Loop In A Magnetic Field

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Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process,...
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The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
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Magnetic Field Due To A Thin Straight Wire01:28

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Magnetic Field Of A Current Loop01:16

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Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
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In addition to the electric forces between electric charges, moving electric charges exert magnetic forces on each other. A magnetic field is created by a moving charge or a group of moving charges known as the electric current. A magnetic force is experienced by a second current or moving charge in response to this magnetic field. Fundamentally, interactions between moving electrons in the atoms of two bodies produce magnetic forces between them.
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Folding and Characterization of a Bio-responsive Robot from DNA Origami
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A worm-inspired robot based on origami structures driven by the magnetic field.

Yuchen Jin1, Jing Li2, Shiyang Liu1

  • 1College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, People's Republic of China.

Bioinspiration & Biomimetics
|May 15, 2023
PubMed
Summary

Researchers engineered a novel worm-inspired origami robot using paper knitting. This flexible, lightweight robot demonstrates complex locomotion for tasks like climbing and obstacle negotiation.

Keywords:
inchworm motionlarge deformationmagnet-driven robotomega motionorigami

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Area of Science:

  • Robotics
  • Materials Science
  • Bio-inspired Engineering

Background:

  • Origami technology enables complex robot designs.
  • Worm-inspired robots exhibit diverse locomotion.
  • Paper-based structures offer unique mechanical properties.

Purpose of the Study:

  • To engineer a worm-inspired origami robot using paper knitting.
  • To achieve large deformation and intricate locomotion patterns.
  • To demonstrate the robot's functionality in various tasks.

Main Methods:

  • Fabrication of the robot's backbone using paper-knitting technique.
  • Analysis of magnetic forces and torques from permanent magnets for actuation.
  • Investigation of inchworm, Omega, and hybrid motion formats.
  • Theoretical analysis and numerical simulations.

Main Results:

  • The paper-knitted backbone endures significant deformation (tension, compression, bending).
  • The robot successfully performs tasks including obstacle sweeping, wall climbing, and cargo delivery.
  • Demonstrated lightweight, great flexibility, and robustness in various environments.

Conclusions:

  • The developed origami robot showcases promising capabilities for intelligent bio-inspired designs.
  • Paper-knitting offers a viable method for creating highly deformable robot structures.
  • The robot's design facilitates versatile locomotion and task execution.