A new magnetorheological elastomer isolator in shear-compression mixed mode

被引：78

作者：

Yang, C. Y. ^{[1
]}

Fu, J. ^{[2
]}

Yu, M. ^{[2
]}

Zheng, X. ^{[2
]}

Ju, B. X. ^{[2
]}

机构：

[1] Chongqing Univ, Coll Mech Engn, Chongqing 400044, Peoples R China

[2] Chongqing Univ, Key Lab Optoelect Technol & Syst, Minist Educ, Coll Optoelect Engn, Chongqing 400044, Peoples R China

来源：

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES | 2015年 / 26卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Magnetorheological elastomer; shifting frequency; mixed mode; VIBRATION ABSORBER; DESIGN;

D O I：

10.1177/1045389X14541492

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new magnetorheological elastomer isolator in shear-compression mixed mode is designed in this article. Two pieces of magnetorheological elastomer fabricated with different dimensions are utilized in the isolator. One magnetorheological elastomer operates on shear mode, and the other operates on compression mode. Next, a finite element method magnetic package is used to analyze the designed magnetic circuit system, and a test system is established to obtain the frequency response of magnetorheological elastomer isolator with mixed mode. It is found that the natural frequency of magnetorheological elastomer 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. Finally, the dynamic model of isolator system is established, and the stiffness and damping coefficients of magnetorheological elastomer isolator are identified by the experimental method. Meanwhile, the variable range for stiffness and damping of magnetorheological elastomer isolator with mixed mode is greater than that of single mode, which has been proved in theory and experiments.

引用

页码：1290 / 1300

页数：11

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