Design Analysis of Base Isolator Utilizing Magnetorheological Elastomer based Epoxidized Natural Rubber

A-DEWS 2015: Design Engineering in the Context of Asia, Asian Design Engineering workshop, 29th - 30th October 2015, The Hong Kong Polytechnic University

Year: 2015
Author: Muntaz Hana Ahmad Khairi1,a, Saiful Amri Mazlan1,b, Ku Zarina Ku Ahmad2,cUbaidillah1,3,d, Nurul Ain Abd Wahab1,e, Siti Aishah Abdul Aziz 1,f
Institution: 1Malaysia-Japan International Institute of Technology (MJIIT)Universiti Teknologi MalaysiaKuala Lumpur, Malaysia2Faculty of EngineeringNational Defence University of MalaysiaKuala Lumpur, Malaysia3Mechanical Engineering Department, Faculty of EngineeringUniversitas Sebelas MaretJl. Ir. Sutami 36A, Kentingan, Surakarta, Indonesia
Section: Materials and Topology Design
Page(s): 51-56

Abstract

Magnetorheological elastomers (MREs) are viscoelastic solid whose rheological properties are controllable by magnetic field application. The purpose of this work is to use MRE as vibration isolation and reduction by implementing it in base isolator. The isotropic MREs sample comprising of epoxidised natural rubber (ENR-50) and carbonyl iron (CI) particles (60 weight percent) is synthesized using conventional method. Their microstructures were observed by using field emission scanning electron microscope (FESEM) and their magnetic characteristics were measured using vibrating sample magnetometer (VSM). Proposed MRE base isolator was designed to investigate the capability of the fabricated MRE based ENR-50 to be utilized in applications. Finite element methods magnetic (FEMM) simulation software was used to compute the electromagnetic circuit observing magnetic flux distribution through the fabricated MREs.

Keywords: Magnetorheological elastomer, magnetic composite, magnetic simulation, base isolator, magnetic circuit.

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