Analysis of coupled vibration modes by use of holographic interferometry and finite elements method

Luigi Balis-Crema; Michele Arturo Caponero; Antonio Castellani; Alberto De Angelis; G. Ermio

doi:10.1117/12.212665

23 June 1995 Analysis of coupled vibration modes by use of holographic interferometry and finite elements method

Luigi Balis-Crema, Michele Arturo Caponero, Antonio Castellani, Alberto De Angelis, G. Ermio

Proceedings Volume 2545, Interferometry VII: Applications; (1995) https://doi.org/10.1117/12.212665
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

A new experimental procedure devoted to analyse deformation patterns due to the contemporary excitation of different vibration modes (mode coupling) is proposed. The proposed procedure, based on use of holographic interferometry techniques, is particularly appropriate whenever coupled modes are expected according to FEM computation and an experimental modal analysis is required for FEM model validation. This work tests the proposed procedure by verifying the reliability of the experimental results worked out in analysing two simple specimens whose modal behavior can be confidently predicted by analytical and numerical computation.

Citation Download Citation

Luigi Balis-Crema, Michele Arturo Caponero, Antonio Castellani, Alberto De Angelis, and G. Ermio "Analysis of coupled vibration modes by use of holographic interferometry and finite elements method", Proc. SPIE 2545, Interferometry VII: Applications, (23 June 1995); https://doi.org/10.1117/12.212665

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