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The knee joint design and control of above-knee intelligent bionic leg based on magneto-rheological damper

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Abstract

The above-knee intelligent bionic leg is very helpful to amputees in the area of rehabilitation medicine. This paper first introduces the functional demand of the above-knee prosthesis design. Then, the advantages of the four-bar link mechanism and the magneto-rheological (MR) damper are analyzed in detail. The fixed position of the MR damper is optimized and a virtual prototype of knee joint is given. In the end, the system model of kinematics, dynamics, and controller are given and a control experiment is performed. The control experiment indicates that the intelligent bionic leg with multi-axis knee is able to realize gait tracking of the amputee’s healthy leg based on semi-active control of the MR damper.

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Authors and Affiliations

  1. School of Mechanical Engineering and Automation, Northeastern University, Shenyang, 110004, PRC

    Hua-Long Xie, Ze-Zhong Liang & Li-Xin Guo

  2. School of Information Science and Engineering, Shenyang University of Technology, Shenyang, 110178, PRC

    Fei Li

Authors
  1. Hua-Long Xie
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  2. Ze-Zhong Liang
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  3. Fei Li
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  4. Li-Xin Guo
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Corresponding author

Correspondence to Hua-Long Xie.

Additional information

This work was supported by China Postdoctoral Science Foundation (No. 20080441093), Key Laboratory Foundation of Liaoning Province (No. 2008S088) and Postdoctoral Science Foundation of Northeastern University (No. 20080411).

Hua-Long Xie received the bachelor degree in mechatronic engineering, master degree in mechanical design and theory, and Ph.D. degree in control theory and control engineering from Northeastern University, PRC in 2000, 2003, and 2006, respectively. Since 2006, he has been a postdoctoral research fellow and lecturer at Northeastern University.

His research interests include robotics, intelligent control, intelligent bionic leg, and biomechanics.

Ze-Zhong Liang received the B.Eng. degree in mechanical engineering from Shenyang University of Chemical Technology, PRC in 2009. Currently, he is a postgraduate in School of Mechanical Engineering and Automation at Northeastern University, PRC.

His research interests include mechanical manufacturing and automation.

Fei Li received the bachelor degree in measurement and control technology and instrumentation, master degree in control theory and control engineering from Shenyang Institute of Chemical Technology, PRC in 2001 and 2004, respectively, and the Ph.D. degree in pattern recognition and intelligent system from Northeastern University, PRC in 2007. Currently, she is a lecturer in the School of Information Science and Engineering at Shenyang University of Technology, PRC.

Her research interests include robotics, control theory, and computer vision.

Li-Xin Guo received the Ph.D. degree from Northeastern University, PRC in 2000. Currently, he is a professor at Northeastern University.

His research interests include robot motion planning and control, mechanical vibration analysis, finite element analysis, and biomechanics.

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Xie, HL., Liang, ZZ., Li, F. et al. The knee joint design and control of above-knee intelligent bionic leg based on magneto-rheological damper. Int. J. Autom. Comput. 7, 277–282 (2010). https://doi.org/10.1007/s11633-010-0503-y

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  • DOI: https://doi.org/10.1007/s11633-010-0503-y

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