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Pneumatically Controlled Reconfigurable Bistable Bionic Flower for Robotic Gripper.

Zheng Zhang1,2, Xiangqi Ni1, Weiliang Gao1

  • 1College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China.

Soft Robotics
|July 21, 2021
PubMed
Summary
This summary is machine-generated.

This study presents a novel bionic flower gripper using bistable composites and soft actuators. This flower-inspired robotic gripper efficiently transports various objects, showcasing stable, energy-efficient gripping for unstructured environments.

Keywords:
bioinspirationbistable structurescarbon fiber-reinforced polymerrobotic grippersoft pneumatic actuator

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Area of Science:

  • Robotics and Biomimetics
  • Materials Science
  • Mechanical Engineering

Background:

  • Flowers exhibit remarkable self-shaping capabilities in response to environmental changes.
  • Nature-inspired artificial systems are increasingly applied in mobile robotics for their adaptability.
  • Bionic designs offer potential for enhanced functionality and flexibility in robotic applications.

Purpose of the Study:

  • To develop a novel reconfigurable bionic flower for robotic applications.
  • To create a flower-inspired robotic gripper utilizing bistable composites and soft pneumatic actuators.
  • To evaluate the gripping performance, including force, response time, and reliability.

Main Methods:

  • Design of a bionic petal using a hybridization of bistable composites.
  • Establishment of a theoretical model to analyze bistable characteristics.
  • Experimental and simulation analysis of petal deformation and morphing processes.
  • Development and functional testing of a flower-inspired robotic gripper.

Main Results:

  • A bionic petal design demonstrated accurate bistable characteristics matching theoretical models.
  • The flower-inspired robotic gripper successfully grasped objects of diverse shapes, sizes, and weights.
  • Gripping was achieved within milliseconds, with stable configurations maintained via bistability.
  • Continuous pressure consumption was eliminated due to the inherent bistability of the petals.

Conclusions:

  • The proposed soft gripper offers efficient and reliable gripping capabilities.
  • Bistability enables stable gripping without continuous energy input, enhancing efficiency.
  • The gripper's robustness is highly suitable for unstructured environments and tasks with limited control.