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The Design of Bionic Back Shelf for Weight Bearing Exoskeleton

Published: 20 July 2021 Publication History

Abstract

A suitable exoskeleton is able to improve the weight bearing capacity of human and reduce spinal cord injuries caused by long-term works. This paper designs a bionic back shelf for the weight bearing exoskeleton which can fit the back of human well and improve the transmission efficiency of the backpack gravity based on the physiological characteristics of spine. We collected the coordinates of spine through the markers attached to the spinous processes and designed a bionic exoskeleton prototype according to the fitted spine curve. The plantar pressure was obtained by standing and walking by wearing an unpowered exoskeleton with the designed bionic back shelf. We found that the net force transmission efficiency reached 77.1% when a 10kg backpack was carried which rose to 85.1% when the weight of load was added to 20kg while standing with exoskeleton. It was only 18.5% for the whole of supporting state but it reached 61.8% in the mid-support phase during walking which may be caused by the small angle of the hip and knee joints facilitating the transmission of load gravity in the vertical direction. The results illustrated that the exoskeleton with a bionic back frame on the basis of spine curve had high force transmission efficiency in the standing state and the mid-support state of walking.

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  • (2024)Lightweight Active Soft Back Exosuit for Construction Workers in Lifting TasksJournal of Construction Engineering and Management10.1061/JCEMD4.COENG-14490150:7Online publication date: Jul-2024

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cover image ACM Other conferences
ICBET '21: Proceedings of the 2021 11th International Conference on Biomedical Engineering and Technology
March 2021
200 pages
ISBN:9781450387897
DOI:10.1145/3460238
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 20 July 2021

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Author Tags

  1. Bionic back shelf
  2. Force transmission efficiency
  3. Spine curve

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  • Research-article
  • Research
  • Refereed limited

Funding Sources

  • Science and Technology Innovation Special Zone Youth Project
  • National Natural Science Foundation of China
  • the Ministry of Science and Technology?s national key R&D program
  • China Postdoctoral Science Foundation-funded project

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ICBET '21

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  • (2024)Lightweight Active Soft Back Exosuit for Construction Workers in Lifting TasksJournal of Construction Engineering and Management10.1061/JCEMD4.COENG-14490150:7Online publication date: Jul-2024

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