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Proceedings Paper

Adaptive conjugate smoothing of digital images using photo-elastic coatings
Author(s): Algiment Aleksa; Minvydas Ragulskis; Arvydas Palevicius; Jurate Ragulskiene
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Paper Abstract

The methods for investigation of the element under vibration of smart structures is proposed. The first eigenmodes of bending vibrations of a circular pezoceramic plate with fixed internal radius are determined and it is assumed that vibrations take place according to the eigenmode. The stresses in the coating are calculated by using the procedure of conjugate approximation. Then the relative error norms for the finite elements are determined. They are used in the proposed procedure of adaptive conjugate approximation with smoothing. From the presented results it is shown that the adaptively smoothed image is advantageous when compared with the conventionally smoothed images. Thus the proposed procedure of adaptive conjugate smoothing builds the ground for realistic reconstruction of experimentally produced photo-elastic fringes and effective application of digitally reconstructed images in hybrid numerical - experimental procedures. Analysis is performed using a plate bending element assuming that a coating has no effect to the motion of a plate. Relative error norms for the finite elements are determined. They are used in the procedure of adaptive conjugate approximation with smoothing.

Paper Details

Date Published: 30 March 2009
PDF: 8 pages
Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 72924B (30 March 2009); doi: 10.1117/12.806227
Show Author Affiliations
Algiment Aleksa, Kaunas Univ. of Technology (Lithuania)
Minvydas Ragulskis, Kaunas Univ. of Technology (Lithuania)
Arvydas Palevicius, Kaunas Univ. of Technology (Lithuania)
Jurate Ragulskiene, Kaunas College (Lithuania)


Published in SPIE Proceedings Vol. 7292:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009
Masayoshi Tomizuka, Editor(s)

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