A New Isolator for Vibration Control

被引：12

作者：

Behrooz, Majid ^{[1
]}

Sutrisno, Joko ^{[2
]}

Wang, Xiaojie ^{[2
]}

Fyda, Robert ^{[2
]}

Fuchs, Alan ^{[2
]}

Gordaninejad, Faramarz ^{[1
]}

机构：

[1] Univ Nevada, Dept Mech Engn, Reno, NV 89557 USA

[2] Univ Nevada, Dept Chem & Mat Engn, Reno, NV 89557 USA

来源：

ACTIVE AND PASSIVE SMART STRUCTURES AND INTEGRATED SYSTEMS 2011 | 2011年 / 7977卷

基金：

美国国家科学基金会;

关键词：

Semi-active; isolator; magneto-rheological elastomers; ELASTOMERS;

D O I：

10.1117/12.881871

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This study presents the feasibility of a new variable stiffness and damping isolator (VSDI) in an integrated vibratory system. The integrated system comprised of two VSDIs, a connecting plate and a mass. The proposed VSDI consists of a traditional steel-rubber vibration absorber, as the passive element, and a magneto-rheological elastomer (MRE), with a controllable (or variable) stiffness and damping, as the semi-active element. MREs' stiffness and damping properties can be altered by a magnetic field. Dynamic testing on this integrated system has been performed to investigate the effectiveness of the VSDIs for vibration control. Experimental results show significant shift in natural frequency, when activating the VSDIs. Transmissibility and natural frequency of the integrated system are obtained from properties of single device. The experimental and predicted results show good agreement between the values of the natural frequency of the system at both off and on states. However, system damping predictions are different from experimental results. This might be due to unforeseen effects of pre-stressed MREs and nonlinear material properties.

引用

页数：9

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