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TECHNICAL PAPERS

Active Control of Periodic Structures

[+] Author and Article Information
A. Baz

Mechanical Engineering Department, University of Maryland, College Park, MD 20742

J. Vib. Acoust 123(4), 472-479 (Jun 01, 2001) (8 pages) doi:10.1115/1.1399052 History: Received July 01, 2000; Revised June 01, 2001
Copyright © 2001 by ASME
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References

Figures

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Typical examples of passive periodic structures
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Typical examples of active periodic structures
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An active periodic spring-mass system
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One-dimensional periodic structure
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Filtering characteristics of the passive periodic spring-mass system with rks=1 and rkc=0. (P=Pass band, S=Stop band)
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Filtering characteristics of the active periodic spring-mass system with rks=1 and rkc=2 (P=Pass band, S=Stop band)
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Filtering characteristics of the active periodic spring-mass system with rks=1 and rkc=5 (P=Pass band, S=Stop band)
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Filtering characteristics of the active periodic spring-mass system with rks=1 and rkc=−0.75 (P=Pass band, S=Stop band)
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Filtering characteristics of the active periodic spring-mass system with rks=1 and rkc=i Ω (P=Pass band, S=Stop band)
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Effect of disorder level (sigma=σ) on the localization factor (P=Pass band, S=Stop band)
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Vibration localization at frequency Ω=0.9 with disorder level sigma=2.5 (periodic –, aperiodic – )
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Vibration localization at frequency Ω=1.75 with disorder level sigma=0.25 (periodic –, aperiodic – )
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Vibration localization at frequency Ω=1.95 with disorder level sigma=0.25 (periodic –, aperiodic – )
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Boundaries of stop and pass bands

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