A wet adhesion inspired biomimetic pad with direction dependence and adaptability

  • Li M
  • He B
  • Qin H
 et al. 
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Abstract

A novel adhesive pad for a climbing robot, inspired by a stick insect's smooth pad, is proposed. The micro structure pattern and inclined fiber of a stick insect's pad are mimicked, and an adhesion force is produced based on its wet adhesion mechanism. Firstly, the wet adhesion model is discussed and the pad is designed; secondly, the adhesion characteristics, adhesion direction dependence and adaptability are analyzed; finally, the proposed pad is fabricated using a thermoplastic elastomer, which is a hydrophilic and viscoelastic material. Experimental results show that the adhesion performance of the pad is good, and normal adhesion and friction can reach to 0.65 N and 3 N. Furthermore, the adhesion of the pad is direction dependent and self-adaptive.

Author-supplied keywords

  • biomimetic adhesion material
  • bionic pad
  • climbing robot
  • direction dependence of adhesion
  • wet adhesion

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Authors

  • Ming He Li

  • Bin He

  • Hai Yan Qin

  • Yan Min Zhou

  • Han Xiong Lu

  • Ji Guang Yue

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