Adding adaptable toe stiffness affects energetic efficiency and dynamic behaviors of limit cycle walking

Shiqi Sun, Yan Huang, Qining Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a limit cycle walking model with segmented feet. We add adaptable ankle and joint stiffness to a limit cycle walker based on previous biological studies to further understand the effects of segmented feet on walking performance. The equilibrium position and stiffness of the toe joints vary during one step depending on the current walking phase. Both the walking phase sequence and the toe joint behavior show a great resemblance to human normal walking. Experimental results show the effects of toe parameters on walking speed, step length, energetic efficiency and the net works of ankle and toe joints, which could provide us a better understanding of segmented-foot limit cycle walkers and help in building a physical robot with toe joints.

Original languageEnglish
Title of host publicationMobile Service Robotics
Subtitle of host publicationProceedings of the 17th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines
EditorsKrzysztof Kozlowski, Mohammad O Tokhi, Gurvinder S Virk, Gurvinder S Virk, Gurvinder S Virk
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages361-368
Number of pages8
ISBN (Print)9789814623346
DOIs
Publication statusPublished - 2014
Event17th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines, CLAWAR 2014 - Poznan, Poland
Duration: 21 Jul 201423 Jul 2014

Publication series

NameMobile Service Robotics: Proceedings of the 17th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines

Conference

Conference17th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines, CLAWAR 2014
Country/TerritoryPoland
CityPoznan
Period21/07/1423/07/14

Keywords

  • Adaptable joint stiffness
  • Limit cycle walking
  • Segmented foot
  • Toe joint

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