Semi-active torsional vibration isolation utilizing magnetorheological elastomer

Marzuki, Wan M.R.W. and Abdul Muthalif, Asan Gani and Nordin, N. H.Diyana (2018) Semi-active torsional vibration isolation utilizing magnetorheological elastomer. Vibrations in Physical Systems, 29. pp. 1-8. ISSN 0860-6897

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Abstract

In rotating machinery, unattenuated excessive torsional vibration leads to damage and excessive wear. This type of vibration, which is transferred from one structure to another can be estimated using torsional transmissibility factor (TTF). The value of the TTF describes the ratio of output to input and reaches its peak at the natural frequency. Hence, the ability to vary coupling stiffness of two rotating shafts will allow the control of the TTF towards better performance and preventions from fatigue loading. Traditionally, passive rubbers are used as a flexible coupling in between two shafts. However, the constant passive stiffness of the material limits its performance. To address this issue, an adaptive coupling based on magnetorheological elastomer (MRE) is proposed to achieve better TTF at varying frequencies. Mathematical modelling, simulation study and experimental results of MRE for torsional vibration isolation are presented in this work. Natural frequency obtained from the TTF shows an increase of about 3 Hz when current changed from 1 to 6 A.

Item Type:	Article (Journal)
Additional Information:	3352/66019
Uncontrolled Keywords:	Magnetorheological elastomer (MRE), torsional vibration, vibration isolation, smart materials
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ241 Machine construction (General) T Technology > TS Manufactures
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User:	Ir. Ts. Dr Asan Gani Abdul Muthalif
Date Deposited:	30 Aug 2018 13:33
Last Modified:	30 Aug 2018 13:33
URI:	http://irep.iium.edu.my/id/eprint/66019

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