Solomon Seid

Production Engineering Department, College of Engineering, Defence University, Bishoftu, Ethiopia

[ 1 ] - Design and Evaluation of a Magnetorheological Damper Based Prosthetic Knee

In this work, a magnetorheological (MR) damper based above-knee prosthesis is design and evaluated based on its performance in swing phase and in stance phase. Initially, a dynamic system model for swing phase of a prosthetic leg incorporating a single-axis knee with ideal MR damper was built. The dynamic properties of the damper are represented with Bingham parametric model. From Bingham model...

[ 2 ] - Performance Evaluation of Magnetorheological Damper Valve Configurations Using Finite Element Method

The main purpose of this paper is to study various configurations of a magnetorheological (MR) damper valve and to evaluate their performance indices typically dynamic range, valve ratio, inductive time constant and pressure drop. It is known that these performance indices (PI) of the damper depend upon the magnetic circuit design of the valve. Hence, nine valve configurations are considered fo...

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