文章基本信息

标题：Response of A Magnetorheological Brake under Inertial Loads
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作者：Ubaidillah ; Fitrian Imaduddin ; Muhammad Nizam 等
期刊名称：International Journal on Electrical Engineering and Informatics
印刷版ISSN：2085-6830
出版年度：2015
卷号：7
期号：2
DOI：10.15676/ijeei.2015.7.2.11
出版社：School of Electrical Engineering and Informatics
摘要：The study is objected to investigate the response of a magnetorheologicalbrake (MRB) system under thefree move inertial mass. The disk-type MRB comprisesof a rotating disk immersed in magnetorheological fluids (MRFs) and surrounded by anelectromagnet coil. The magnetized coil causes a solidification of the MR fluid so thatthe shear stress between the moving part and static part increases resulting in thedecrement speed of the moving parts. The shear stress can be varied by applyingdifferent electric current to the coil. The study began with the part design using the3Dmodeling software, followingbythe magnetostatic analysis. The flux density across themagnetorheological fluid could be predicted through this finite element magneticsimulation. The quantity of magnetic flux was then used to predict the shear stressbetween static and moving parts. The fabricated MRB was integrated onto a test rigwhich employs load cell and speed sensor as well as completely instrumented with dataacquisition.Since the MRB test rig performed a simple free rotation system, a linearsecond order differential equation was derived to model the stopping time and brakingtorque behaviors. The equation of motion was built in a Simulink model, and thesimulation results were compared to the real measurement. The achievable brakingtorque was also presented based on theaverage value from the load cell.
关键词：magnetorheological fluids; magnetorheological brake; stopping time;braking torque