A magnetorheological fluid based orthopedic active knee brace

Jamaal L. Zite; Farzad Ahmadkhanlou; Vijay A. Neelakantan; Gregory N. Washington

doi:10.1117/12.658693

30 March 2006 A magnetorheological fluid based orthopedic active knee brace

Jamaal L. Zite, Farzad Ahmadkhanlou, Vijay A. Neelakantan, Gregory N. Washington

Proceedings Volume 6171, Smart Structures and Materials 2006: Industrial and Commercial Applications of Smart Structures Technologies; 61710H (2006) https://doi.org/10.1117/12.658693
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

The disadvantage of current knee braces ranges from high cost for customization to a loss in physical mobility and limited rehabilitative value. One approach to solving this problem is to use a Magnetorheological (MR) device to make the knee brace have a controllable resistance. Our design solution is to replace the manufacturer's joint with an rotary MR fluid based shear damper. The device is designed based on a maximum yield stress, a corresponding magnetic field, a torque and the MR fluid viscosity. The analytical and experimental results show the advantages and the feasibility of using the proposed MR based controllable knee braces.

Citation Download Citation

Jamaal L. Zite, Farzad Ahmadkhanlou, Vijay A. Neelakantan, and Gregory N. Washington "A magnetorheological fluid based orthopedic active knee brace", Proc. SPIE 6171, Smart Structures and Materials 2006: Industrial and Commercial Applications of Smart Structures Technologies, 61710H (30 March 2006); https://doi.org/10.1117/12.658693

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