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Research Papers

Vibration Suppression Using Electromagnetic Resonant Shunt Damper

[+] Author and Article Information
Tsuyoshi Inoue

Department of Mechanical Science and Engineering, School of Engineering, Nagoya University, Nagoya 464-8603, Japaninoue@nuem.nagoya-u.ac.jp

Yukio Ishida

Department of Mechanical Science and Engineering, School of Engineering, Nagoya University, Nagoya 464-8603, Japan

Masaki Sumi

 Matsushita Electric Industrial Co., Kadoma 571-8501, Japan

J. Vib. Acoust 130(4), 041003 (Jul 01, 2008) (8 pages) doi:10.1115/1.2889916 History: Received June 13, 2006; Revised December 21, 2006; Published July 01, 2008

An electromagnetic actuator has the property to convert mechanical energy to electrical energy and vice versa. In this study, an electromagnetic resonant shunt damper, consisting of a voice coil motor with an electric resonant shunt circuit, is proposed. The optimal design of the shunt circuit is obtained theoretically for this electromagnetic resonant shunt damper. Furthermore, the effects of parameter errors of the elements of the electromagnetic resonant shunt damper are also investigated. The applicability of the theoretical findings for the proposed damper is justified by the experimental analysis.

Copyright © 2008 by American Society of Mechanical Engineers
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References

Figures

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Figure 4

Influence of R on the resonance curve of the electromagnetic resonant shunt damper. (a) Resonance curve of amplitude X. (b) Resonance curve of current I.

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Figure 5

Resonance curve in the case of the electromagnetic resonant shunt damper (case of the optimal designed parameter). (a) Resonance curve of amplitude X. (b) Resonance curve of current I.

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Figure 6

Effect of damper coefficient ϕ

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Figure 7

Influence of resistance R error

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Figure 12

Influence of the variation of inductance

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Figure 13

Experimental aparataus

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Figure 14

Resonance curve (experiment, setup I). (a) Resonance curve of amplitude X. (b) Resonance curve of current I.

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Figure 15

Resonance curve (experiment, setup II). (a) Resonance curve of amplitude X. (b) Resonance curve of current I.

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Figure 1

One-degree-of-freedom theoretical model

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Figure 2

Electric shunt circuit of the damper. (a) RC series shunt circuit. (b) R shunt circuit.

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Figure 3

Resonance curve in the case of the electromagnetic shunt damper without an electric resonant circuit. (a) Resonance curve of amplitude X. (b) Resonance curve of current I.

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Figure 8

Influence of capacitance C error

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Figure 9

Influence of inductance L error

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Figure 10

Setup of the voice coil motor (experiment)

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Figure 11

Variation of the inductance of the voice coil motor (experiment)

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