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Design of Three-finger Capturing Mechanism Using Artificial Muscles of Twisted and Coiled Polymer

  • Jun HeEmail author
  • Zhenchuan Sun
  • Feng Gao
Conference paper
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 73)

Abstract

The multi-finger mechanism has more degrees of freedom (DoFs) and it can capture non-cooperative targets with complex shapes in space. How-ever, traditional multi-finger mechanisms driven by servomotors have these disadvantages of large volume, heavy weight, high energy-consumption, and poor shock absorption, which are difficult to be used for operations in space. This paper proposes a novel three-finger capturing mechanism using twisted and coiled polymer (TCP) muscles. Each finger is a redundant serial-parallel hybrid mechanism with four DOFs, which is driven by five TCP artificial muscles. Type synthesis of the parallel part of the finger’s mechanisms is carried out based on the generalized function (GF) set theory. The forward and inverse kinematic equations of the entire finger mechanism is derived. The prototype of the three-finger capturing mechanism has been manufactured. Finally, the experiments of capturing a nozzle model of the apogee kick engine (AKE) verify the design and kinematic model of the three-finger capturing mechanism.

Keywords

Hybrid mechanism TCP muscles Capturing mechanism 

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Notes

Acknowledgments

This project is supported by National Natural Science Foundation of China (Grant No. 51575337), Equipment Pre-research Joint Fund of China Aerospace Science and Technology Corporation (Grant No. 6141B06220407).

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.School of Mechanical EngineeringShanghai Jiao Tong UniversityShanghaiChina

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