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외골격 로봇의 마찰보상제어를 위한 구동 모듈의 정적 및 동적 마찰 특성 분석

Static and Dynamic Friction Characteristics Analysis of Actuation Module for Friction Compensation of Exoskeleton Robot

Journal of the Korean Society for Precision Engineering 2019;36(10):929-935.
Published online: October 1, 2019

1 국방과학연구소 지상기술연구원

1 Ground Technology Research Institute, Agency for Defense Development

#E-mail: yjshin@add.re.kr, TEL: +82-42-821-2071
• Received: August 12, 2019   • Revised: September 6, 2019   • Accepted: September 11, 2019

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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    Journal of the Korean Society for Precision Engineering.2024; 41(12): 923.     CrossRef
  • A Recurrent Neural Network for 3D Joint Angle Estimation based on Six-axis IMUs but without a Magnetometer
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    Journal of the Korean Society for Precision Engineering.2023; 40(4): 301.     CrossRef
  • Friction Compensation of Electric-Motor Driven Revolute Joint with Harmonic Gear
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    Journal of the Korean Society of Manufacturing Technology Engineers.2020; 29(3): 259.     CrossRef

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Static and Dynamic Friction Characteristics Analysis of Actuation Module for Friction Compensation of Exoskeleton Robot
J. Korean Soc. Precis. Eng.. 2019;36(10):929-935.   Published online October 1, 2019
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Static and Dynamic Friction Characteristics Analysis of Actuation Module for Friction Compensation of Exoskeleton Robot
J. Korean Soc. Precis. Eng.. 2019;36(10):929-935.   Published online October 1, 2019
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Static and Dynamic Friction Characteristics Analysis of Actuation Module for Friction Compensation of Exoskeleton Robot
Image Image Image Image Image Image Image Image
Fig. 1 Lower-limb type exoskeleton robot
Fig. 2 Various static friction models
Fig. 3 Stribeck friction model
Fig. 4 Actuation module and configuration
Fig. 5 Experiment setup
Fig. 6 Friction data of actuation module in time domain
Fig. 7 Compensated and interpolated friction data
Fig. 8 Modeling result of friction models
Static and Dynamic Friction Characteristics Analysis of Actuation Module for Friction Compensation of Exoskeleton Robot

Parameters and values according to friction model

Parameter F c η F s v s σ 0 σ 1 σ 2
Coulomb 0.6 - - - - - -
Coulomb + Viscous 1 0.4 0.0013 - - - - -
Coulomb + Viscous 2 0.6 0.04 - - - - -
Stribeck 0.45 0.0012 0.7 80 - - -
LuGre 0.4 - 0.7 80 0.5 0.009 0.0013
Table 1 Parameters and values according to friction model