An Active-Passive Piezoelectric Absorber for Structural Vibration Control Under Harmonic Excitations With Time-Varying Frequency, Part 1: Algorithm Development and Analysis

[+] Author and Article Information
R. A. Morgan, K. W. Wang

Structural Dynamics and Controls Lab, Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA 16802

J. Vib. Acoust 124(1), 77-83 (Jul 01, 2001) (7 pages) doi:10.1115/1.1419201 History: Received August 01, 2000; Revised July 01, 2001
Copyright © 2002 by ASME
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General system configuration
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Experimental verification of active coupling feedback (a) negative resistance effects (b) active coupling and negative resistance effects
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Effective generalized coupling coefficient vs. active coupling gain (Kij2=.02)
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(a) FRF (anti-resonant case) (b) optimal tuning curve (anti-resonance case)
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(a) FRF (no anti-resonance) (b) optimal tuning curve (no anti-resonance)



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