Experimental Studies on Application of Digital Image Correlation in Modal Parameter Identification

Abstract:

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The accurate identification of modal parameters is the core content in the experiment modal analysis of structure. The effective and accurate collection of vibration dates comes to be as the premise of high precise identification. This paper presents a new method of data collection in modal parameter identification. By high-speed camera, time series images of vibration were obtained; Then, the images collected were processed using digital image correlation method, and the time-displacement graphic on vibration direction of some pixels selected was got; Finally ,the time-domain signal was post-processed based on the complex Morlet wavelet transform, and the modal parameters were got. By a specific experiment, the method was proved feasible and effective.

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Periodical:

Edited by:

Paul P. Lin and Chunliang Zhang

Pages:

238-243

DOI:

10.4028/www.scientific.net/AMM.105-107.238

Citation:

E. L. Dong et al., "Experimental Studies on Application of Digital Image Correlation in Modal Parameter Identification", Applied Mechanics and Materials, Vols. 105-107, pp. 238-243, 2012

Online since:

September 2011

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Price:

$35.00

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