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Research Papers

A Comprehensive Study of the RL Series Resonant Shunted Piezoelectric: A Feedback Controls Perspective

[+] Author and Article Information
Matthew V. Kozlowski1

Department of Mechanical Engineering and Material Science, Pratt School of Engineering, Duke University, Durham, NC 27708matthew.kozlowski@jhuapl.edu

Daniel G. Cole, Robert L. Clark

Department of Mechanical Engineering and Material Science, Pratt School of Engineering, Duke University, Durham, NC 27708

1

Corresponding author. Also at Applied Physics Laboratory, Johns Hopkins Road, Laurel, MD 20723.

J. Vib. Acoust 133(1), 011012 (Jan 26, 2011) (10 pages) doi:10.1115/1.4000966 History: Received October 13, 2004; Revised May 07, 2007; Published January 26, 2011; Online January 26, 2011

The resonant shunted piezoelectric has been shown a viable solution for stable vibration control. Two main implementations of the single mode shunt circuit have been developed; the original with a series connection of the resistive and inductive element forming the shunt, and the second, a parallel interconnection, which claimed marginal tuning improvements. More recently, multimodal shunting circuits have been developed where a gain in achievable bandwidth may be viewed as offset by the difficulty in properly tuning. In this paper, the original series shunt formulation is presented in unique detail. Here, the electromechanical analogy is developed, along with a unique technique for accurately tuning the shunt circuit. Experimental results are presented to the theoretical foundations.

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Copyright © 2011 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

Lumped parameter topology of tuned vibration absorber and resonant shunted piezoelectric

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Figure 2

Feedback structure of tuned vibration absorber as compared with resonant shunted piezoelectric

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Figure 3

Analogy of performance factors for proof-mass absorber and resonant shunted piezo

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Figure 4

The piezoelectric transformer model

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Figure 5

The mechanical model of the piezoelectric

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Figure 6

Equivalent circuit representations of the piezoelectric

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Figure 7

An example of a modal circle for a piezostructure

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Figure 8

Method 1 circuit used to measure the impedance of a piezoelectric element

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Figure 9

Method 2 circuit used to measure the impedance of a piezoelectric element

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Figure 10

Experimental receptance plots using both impedance measurement techniques

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Figure 11

Test rig schematic

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Figure 12

Riordan gyrator circuit

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Figure 13

Open and closed loop resonant shunted piezo results

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