منابع مشابه
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...
متن کاملDesign of controller for single axis knee using MR Damper
Human gait is characterized by periodic repetitions of two phases: a stance phase in which a foot is in contact with the ground, followed by a swing phase in which the lower limb swings through after toe-off. The functional necessities of above-knee prostheses are to provide knee locking during the stance phase and damping during the swing phase. Most of the conventional above-knee prostheses a...
متن کاملModelling of Magnetorheological Damper for Intelligent Bionic Leg and Simulation of Knee Joint Movement Control
To compensate for missing functions of lower extremity amputees, this paper proposes a model of an intelligent bionic leg semi-actively controlled by a magnetorheological damper (MRD). A mechanical structure of the leg is designed, and with the help of Bouc-Wen model, a MRD forward dynamics model is constructed for simulation. On the basis of data obtained from simulations, the MRD inverse dyna...
متن کاملDevelopment of an Above Knee Prosthesis using MR Damper and Leg Simulator
Because conventional above-knee prostheses are passive type device with constant mechanical properties, knee joint motions are not similar to that of normal persons. On the other hand, active type prostheses can improve swing phase gait but these are expensive, heavy and consume large energy. So the semi-active type prostheses are presented. We propose to use the rotary MR damper. The torque di...
متن کاملMagneto-Rheological Damper Modelling
A comparative analysis of different models of a Magneto-Rheological (MR) damper was done. Three models were tested: a non-linear ARX, a semi-phenomenological and a phenomenological. Although the non-linear ARX model shown the best result, this is a black-box model with limited use. However, the Semi-Phenomenological model represented an excellent option considering the physical meaning of its p...
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ژورنال
عنوان ژورنال: MOJ Orthopedics & Rheumatology
سال: 2016
ISSN: 2374-6939
DOI: 10.15406/mojor.2016.04.00142