Analytical Dynamic Performance Modeling for Individual C-block Actuators

[+] Author and Article Information
A. J. Moskalik, D. Brei

Department of Mechanical Engineering and Applied Mechanics, The University of Michigan, 2250 G. G. Brown Building, 2350 Hayward St., Ann Arbor MI 48109-2125

J. Vib. Acoust 121(2), 221-230 (Apr 01, 1999) (10 pages) doi:10.1115/1.2893968 History: Received December 01, 1998; Online February 26, 2008


C-blocks are mid-range piezoelectric actuators that show promise for use in dynamic applications, such as noise and vibration control. This paper presents an analytical model of an individual C-block actuator, including the identification of the natural frequencies and the description of the amplitude response across the frequency spectrum. In addition, an experimental study with three case studies is presented investigating the accuracy of the model and the sensitivity of the overall dynamic performance to C-block design parameters. The experimental results showed a good match to the analytical model and outlined the trade-offs between displacement amplitude and bandwidth.

Copyright © 1999 by The American Society of Mechanical Engineers
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