De-electroadhesion of Flexible and Lightweight Materials: An Experimental Study

Chongjing Cao*, Xing Gao, Jianglong Guo, Andrew Conn

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

3 Citations (Scopus)
131 Downloads (Pure)

Abstract

Electroadhesion (EA) is an emerging prehension method with wide application in robotics, including object handling, component assembly, and robotic locomotion. A major challenge with EA is the development of novel solutions for speeding up the release process, where residual charges inhibit release. In this work, a comprehensive study on the effects of EA base substrate and object material types on de-electroadhesion time is presented. Experimental results show that the de-electroadhesion speed is highly dependent on the base substrate and object material type. There is a strong inverse correlation between dielectric constant and de-electroadhesion rate, while a higher molecular weight demonstrates slower dielectric relaxation and hence release time. These findings will enable the design of cost-effective EA-based robotic end effectors with rapid release capabilities. EA grippers with quicker de-adhesion abilities could significantly improve the overall throughput of assembly lines where material pick-and-place tasks are involved. In addition, more efficient and faster locomotion speeds could be achieved for crawling or climbing robots where EA is employed as their active adhesion and de-adhesion feet.
Original languageEnglish
Article number2796
Number of pages9
JournalApplied Sciences (Switzerland)
Volume9
Issue number14
DOIs
Publication statusPublished - 12 Jul 2019

Keywords

  • De-adhesion
  • Electroadhesion
  • Flexible and lightweight materials

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