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Proceedings Paper

A large-scale adaptive magnetorheological elastomer-based bridge bearing
Author(s): Siddaiah Yarra; Majid Behrooz; Gokhan Pekcan; Ahmad Itani; Faramarz Gordaninejad
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Paper Abstract

This study presents the design, development, testing, and performance evaluation of a scaled bridge bearing utilizing magnetorheological elastomer (MRE) layers as adaptive elements, which allow for a varying stiffness under a magnetic field. The adaptive bridge bearing system incorporates a closed-loop magnetic circuit that results in an enhanced magnetic field in the MRE layers. A new design is introduced and optimized using structural and magnetic finite element analyses. Two bearings and a test setup for applying simultaneous variable shear, constant compression, and a variable magnetic field on the bearing are fabricated. The adaptive bridge bearing results demonstrate the stiffness change of the bearing under different strain levels and loading frequencies, as well as the ability of the bearing to change its stiffness under different applied electric currents, which can be correlated to the applied magnetic field.

Paper Details

Date Published: 11 April 2017
PDF: 8 pages
Proc. SPIE 10164, Active and Passive Smart Structures and Integrated Systems 2017, 1016425 (11 April 2017); doi: 10.1117/12.2257775
Show Author Affiliations
Siddaiah Yarra, Univ. of Nevada, Reno (United States)
Majid Behrooz, Univ. of Nevada, Reno (United States)
Gokhan Pekcan, Univ. of Nevada, Reno (United States)
Ahmad Itani, Univ. of Nevada, Reno (United States)
Faramarz Gordaninejad, Univ. of Nevada, Reno (United States)

Published in SPIE Proceedings Vol. 10164:
Active and Passive Smart Structures and Integrated Systems 2017
Gyuhae Park, Editor(s)

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