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특이성을 고려한 엑소수트의 전신 기반 제어 전략 시뮬레이션

Whole-Body Control Based Strategy Simulation of Exo-Suit considering Singularity

Journal of the Korean Society for Precision Engineering 2022;39(11):825-831.
Published online: November 1, 2022

1 KAIST 기계공학부

1 School of Mechanical Engineering, Korea Advanced Institute of Science & Technology

#E-mail: kyungsookim@kaist.ac.kr, TEL: +82-42-350-3047
• Received: May 9, 2022   • Revised: August 25, 2022   • Accepted: September 7, 2022

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Comparative Analysis between IMU Signal-based Neural Network Models for Energy Expenditure Estimation
    Chang June Lee, Jung Keun Lee
    Journal of the Korean Society for Precision Engineering.2024; 41(3): 191.     CrossRef

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Whole-Body Control Based Strategy Simulation of Exo-Suit considering Singularity
J. Korean Soc. Precis. Eng.. 2022;39(11):825-831.   Published online November 1, 2022
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Whole-Body Control Based Strategy Simulation of Exo-Suit considering Singularity
J. Korean Soc. Precis. Eng.. 2022;39(11):825-831.   Published online November 1, 2022
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Whole-Body Control Based Strategy Simulation of Exo-Suit considering Singularity
Image Image Image Image Image Image Image
Fig. 1 A 6-link human model for the lifting motion
Fig. 2 Motion capture experiment: Lifting operation
Fig. 3 Motion capture experiment: System communication and configuration
Fig. 4 Approximate box lifting model for control
Fig. 5 Whole-body control framework for the exoskeleton system
Fig. 6 Lifting simulation results (w/ straight leg term, w/o straight leg term)
Fig. 7 Lifting simulation results (w/ WBC (Whole-body control), w/o WBC (Whole-body control))
Whole-Body Control Based Strategy Simulation of Exo-Suit considering Singularity
Length [%] Mass [%]
Head and neck 12.51 7.34
Trunk 32.15 47.76
Upper arm 21.47 3.34
Forearm 17.64 1.87
Hand 11.98 0.87
Thigh 26.45 11.56
Shank 25.31 4.52
Foot 3.54 1.89
v Generalized velocity
A Centroidal momentum matrix
Wg Gravitational wrench
Werf Wrench by ground reaction forces
ρmin, ρmax Minimum and maximum values of ρ
τmin, τmax Minimum and maximum values of τ
Table 1 Human body distribution rate
Table 2 Physical meaning of the variables