Distributed parameter modal filtering using smart sensors
Date
1996
Authors
Tanaka, N.
Snyder, S.
Hansen, C.
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Journal Title
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Type:
Journal article
Citation
Journal of Vibration and Acoustics, 1996; 118(4):630-640
Statement of Responsibility
N. Tanaka, S. D. Snyder, and C. H. Hansen
Conference Name
Abstract
<jats:p>This paper considers the design of distributed parameter modal sensors called “smart sensors,” with a particular emphasis on filtering the combination of appropriately weighted vibration modes providing a specific performance index in control strategy. First, with a two-dimensional distributed parameter sensor using a PVDF film, the necessary and sufficient condition for sensing the transformed modes of a structure is derived. Then, by considering the practicability of the two-dimensional sensors, an alternative approach based upon one-dimensional smart sensors is presented. It is found that the latter approach holds the necessary condition for sensing the transformed mode. This problem is overcome by introducing multiple one-dimensional smart sensors. Moreover, the design procedure for the multiple one-dimensional smart sensors for measuring the transformed mode is established. Finally, an experiment is conducted, demonstrating the validity of the smart sensors.</jats:p>
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©1996 The American Society of Mechanical Engineers