A new magnetorheological elastomer isolator in shear - Compression mixed mode

Author

Fu, Jianming ; Zheng, Xiaoquan ; Yu, Min-Chieh ; Ju, B.X. ; Yang, Cary Y.

Author_Institution

Key Lab. of Optoelectron. Technol. & Syst., Chongqing Univ., Chongqing, China

fYear

2013

fDate

9-12 July 2013

Firstpage

1702

Lastpage

1706

Abstract

A new magnetorheological elastomer (MRE) isolator in shear-compression mixed mode is designed in this paper. Two pieces of MRE fabricated with different dimension are utilized in the isolator. The one MRE operates on compressive mode, and the other operates on shear mode. A finite element method magnetic (FEMM) package is used to analyze the magnetic circuit system, and a test system is established to obtain the vibration performance curves of MRE isolator. It is found that the natural frequency of MRE isolator changes greatly with variable current applied, and the amplitude of vibration is attenuated widely. Compared with the natural frequency of 0A, the increment of natural frequency is up to 103% with applied current reaches to 1.5A. The stiffness and damping coefficient of MRE isolator are identified by the experiment. The results show that the variable range of stiffness of MRE isolators with two operating modes is greater than that of single mode.

Keywords

crystallographic shear; damping; elasticity; finite element analysis; magnetic circuits; magnetorheology; vibrations; FEMM; MRE isolator; compressive mode; damping coefficient; finite element method magnetic; magnetic circuit system; magnetorheological elastomer isolator; shear compression mixed mode; shear mode; stiffness coefficient; vibration performance curves; Damping; Isolators; Magnetic circuits; Magnetomechanical effects; Materials; Resonant frequency; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Intelligent Mechatronics (AIM), 2013 IEEE/ASME International Conference on

Conference_Location

Wollongong, NSW

ISSN

2159-6247

Print_ISBN

978-1-4673-5319-9

Type

conf

DOI

10.1109/AIM.2013.6584342

Filename

6584342