Optimal particle ratio to maximize the dynamic range of Magnetorheological Fluid (MRF) damper for prosthetic limb

Nordin, Norhidayati Diana and Abdul Muthalif, Asan Gani and Saleh, Tanveer and Zainul Azlan, Norsinnira (2015) Optimal particle ratio to maximize the dynamic range of Magnetorheological Fluid (MRF) damper for prosthetic limb. In: 2015 10th Asian Control Conference (ASCC 2015), 31st May- 3rd June 2015, Kota Kinabalu, Sabah.

	PDF - Published Version Restricted to Repository staff only Download (486kB) | Request a copy
	PDF - Published Version Restricted to Repository staff only Download (1MB) | Request a copy

Abstract

Amputation is a process of removing part of the body through surgery. Common reasons for limb amputations include diseases, poor blood circulation to the limb and severe injuries. In order to assist amputees to lead a normal life, prosthetic limb - the artificial device that replaces missing body part, needs to be designed as close as human limb. One way of achieving this is through the implementation of magnetorheological fluid (MRF) damper in human lower limb. The MR fluid, due to its capability of changing its rheological property, is able to provide comfort to the amputees throughout the walking gait cycle, based on its damping characteristic. To design an effective MR fluid damper, one needs to maximize the dynamic range of the damper. This paper presents the simulation of an MRF damper, in order to determine the relationship between the current, fluid mixture viscosity as well as the particle ratio (up to a ratio of 0.55). COMSOL Multiphysics software is used to perform simulation study. By maintaining the number of particles suspended in the fluid, increasing the particle ratio increases the stress. However, the maximum change of stress level, with respect to the applied current is observed at a ratio of 0.51.

Item Type:	Conference or Workshop Item (Invited Papers)
Additional Information:	3352/47295
Uncontrolled Keywords:	prosthetic limb; magnetorheological; damping; particle ratio; microparticle
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA168 Systems engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User:	Ir. Ts. Dr Asan Gani Abdul Muthalif
Date Deposited:	21 Jan 2016 11:48
Last Modified:	06 Dec 2017 10:31
URI:	http://irep.iium.edu.my/id/eprint/47295

Actions (login required)

View Item