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Dynamic Analysis of Knee-Exoskeleton and Its implementation to Design of Magnetorheological Damper

Phu Xuan Do 1, *
Long Bui Quoc Mai 1
Chi Van Le 1
Thang Le Huy Tran 1
  1. MediRobotics Laboratory, Department of Mechatronics and Sensor Systems Technology, Vietnamese German University, Binh Duong, Viet Nam
Correspondence to: Phu Xuan Do, MediRobotics Laboratory, Department of Mechatronics and Sensor Systems Technology, Vietnamese German University, Binh Duong, Viet Nam. Email: phu.dx@vgu.edu.vn.
Volume & Issue: Vol. 21 No. 1 (2018) | Page No.: 02-14 | DOI: 10.32508/stdj.v21i1.421
Published: 2018-06-02

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Copyright The Author(s) 2023. This article is published with open access by Vietnam National University, Ho Chi Minh city, Vietnam. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. 

Abstract

In this study, a new development of knee exoskeleton is presented. Kinematic parameters of the proposed exoskeleton are analysed to find relations among forces and torques. After analysing, the damping force of magneto-rheological (MR in short) damper is carried out. The magnetic flux density and the yield stress functions are found, and these functions are bases for derivation of damping force formulation. The forces from the exoskeleton are directly related to the damping force. Hence these values are used as an objective to find the optimized geometry of the damper. The optimization process is done by using ANSYS ADPL. It is shown that the requirement of design is obtained.

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