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Development of a novel magneto-rheological brake with multiple pole rotor
Author(s): Quoc Hung Nguyen; Ngoc Diep Nguyen; Bao Tri Diep; Hoai Bao Phan; Seung Bok Choi
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Paper Abstract

In this research, a high compact configuration of brake featuring MR fluid (MRB) is proposed. The proposed MRB consists of a rotor with multiple trapezoidal teeth acting at multiple magnetic poles of the brake. Two counter coils are placed on each side-housing of the brake. The inner face of each side-housing also has trapezoidal shape mating with the trapezoidal teeth of the rotor via MRF layer. By applying counter currents to the two coils, a magnetic fluid is generated with magnetic flux going across the MRF layer (MRF duct) between the rotor teeth and their mating poles on the housing. By using multiple poles with trapezoidal shape, a high braking torque of the brake is expected while the size of the brake is still kept to be compacted. After a review of MRB state of the art, configuration of the proposed MRB is presented. The modeling of the actuator is then derived based on Bingham rheological model of MRF and magnetic finite element analysis (FEA). The optimal design of the MRB is then performed in order to minimize the mass of the MRB when braking torque is constrained to be greater than a required value. From the optimal design result, performance characteristics of the actuator is simulated and compared with previously developed MRB.

Paper Details

Date Published: 3 April 2018
Proc. SPIE 10602, Smart Structures and NDE for Industry 4.0, 106020E (3 April 2018); doi: 10.1117/12.2297326
Show Author Affiliations
Quoc Hung Nguyen, Vietnamese-German Univ. (Viet Nam)
Ngoc Diep Nguyen, Industrial University of Ho Chi Minh City (Viet Nam)
Bao Tri Diep, Industrial University of Ho Chi Minh City (Viet Nam)
Hoai Bao Phan, Industrial University of Ho Chi Minh City (Viet Nam)
Seung Bok Choi, Department of Mechanical Engineering, Inha University (Korea, Republic of)

Published in SPIE Proceedings Vol. 10602:
Smart Structures and NDE for Industry 4.0
Norbert G. Meyendorf; Dan J. Clingman, Editor(s)

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