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Fibonacci-compliant finger design.

Mogeeb A El-Sheikh1

  • 1Production and Mechanical Design Department, Port Said University, Port Said - Egypt.

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Summary
This summary is machine-generated.

This study introduces four novel compliant finger designs for affordable prosthetic and robotic hands. Utilizing Fibonacci series parameters and compliant mechanisms, these single-part fingers offer reduced complexity and cost for practical applications.

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Area of Science:

  • Mechanical Engineering
  • Robotics
  • Biomimetics

Background:

  • Prosthetic and robotic hands require cost-effective and controllable designs.
  • Existing designs often face challenges with complexity and manufacturing costs.

Purpose of the Study:

  • To present four distinct mechanical designs for compliant fingers.
  • To address the need for commercially viable components for prosthetic and robotic hands.

Main Methods:

  • Developed single-part compliant fingers using compliant mechanisms.
  • Geometric parameters were based on the Fibonacci series.
  • Designed fingers with 2 or 3 joints and degrees of freedom, using circular flexure hinges.

Main Results:

  • Finite Element Method (FEM) analysis verified joint range of motion.
  • Finger tip trajectories were defined for each configuration.
  • Designs with multiple flexure hinges exhibited minimal stress.

Conclusions:

  • Introduced affordable, single-element compliant finger designs.
  • Hypothetical design variables derived from the Fibonacci series offer a simpler design approach.
  • Identified specific applications for each finger design in prosthetics and robotics.