27 April 2007 In-plane vibration of membrane strips and sheets with piezoelectric actuation and sensing
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Abstract
The studies reported on in this paper are of relevance to automated diagnosis of light weight space structures based on membranes. We investigate in-plane vibration response of membranes to in-plane actuation. Identically shaped piezoelectric polymer strips are used both for actuation and sensing. For membrane strips, the frequency response function is obtained using an in-plane vibration model. The model for the intact membrane is then modified to analyze the effect of a transverse crack at mid-span. The theoretical results are compared with experimental measurements. Experiments on a cracked strip show small differences in the frequency response function, which are qualitatively borne out by the theoretical calculations. Some experimental results on membrane sheets are also presented.
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Umesh A. Korde, Eric A. Petersen, Darwin Daugaard, "In-plane vibration of membrane strips and sheets with piezoelectric actuation and sensing", Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 65252C (27 April 2007); doi: 10.1117/12.711209; https://doi.org/10.1117/12.711209
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