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Related Experiment Video

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Method to Measure Tone of Axial and Proximal Muscle
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Kinematic Analysis of Bionic Elephant Trunk Robot Based on Flexible Series-Parallel Structure.

Qitao Huang1, Peng Wang1, Yuhao Wang1

  • 1Harbin Institute of Technology, School of Mechatronics Engineering, Harbin 150001, China.

Biomimetics (Basel, Switzerland)
|December 22, 2022
PubMed
Summary

This study introduces a novel series-parallel bionic robot inspired by elephant trunks, featuring flexible rod actuation for adaptable stiffness control in complex environments.

Keywords:
bionic elephant trunk robotcosserat theoryflexible rodflexible series-parallel structurekinematic

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Area of Science:

  • Robotics
  • Biomimetics
  • Mechanical Engineering

Background:

  • Bionic robots mimic biological systems for enhanced functionality.
  • Elephant trunks inspire robots due to dexterity and adjustable stiffness.
  • Existing elephant trunk robots often have complex structures.

Purpose of the Study:

  • To propose a novel series-parallel elephant trunk robot.
  • To simplify the structure of bionic elephant trunk robots.
  • To enable stiffness control through flexible rod actuation.

Main Methods:

  • Development of a series-parallel robot architecture.
  • Integration of flexible rod actuation.
  • Design of a 6-degree-of-freedom (6-dof) parallel module.
  • Kinematic modeling of the flexible driving rod, parallel module, and overall robot.

Main Results:

  • A bionic robot with a simplified structure and redundant kinematics.
  • Successful simulation-based verification of the robot's kinematics.
  • Foundation laid for future research into stiffness regulation.

Conclusions:

  • The proposed series-parallel elephant trunk robot offers a simpler design.
  • The robot's redundant kinematics facilitate stiffness control.
  • Kinematic validation provides a basis for advanced control strategies.