Vibration analysis of a metal plate by using laser vibrometry and fringe projection

B. Barrientos; D. Moreno; M. Cywiak; C. Pérez-López; F. Mendoza-Santoyo

doi:10.1117/12.674481

10 February 2006 Vibration analysis of a metal plate by using laser vibrometry and fringe projection

B. Barrientos, D. Moreno, M. Cywiak, C. Pérez-López, F. Mendoza-Santoyo

Proceedings Volume 6046, Fifth Symposium Optics in Industry; 604615 (2006) https://doi.org/10.1117/12.674481
Event: Fifth Symposium Optics in Industry, 2005, Santiago De Queretaro, Mexico

Abstract

Mechanical devices are normally used under conditions of dynamic motion. Due to resonance effects, this condition produces undesired modes of vibration, which are necessary to be measured for satisfactory design. This work describes the use of laser vibrometry in conjunction with fringe projection and the proper orthogonal decomposition method to analyze the dynamical behaviour of a metal plate when subjected to external vibration. In the proposed method, point velocity measurements of the metal plate obtained by a laser vibrometer are put in phase by the use of an instantaneous out-of-plane displacement image obtained by the fringe projection technique. In this case, the plate was driven by an electromagnetic shaker which in turn was fed with a range of frequencies that covered the first 4 resonant modes.

Citation Download Citation

B. Barrientos, D. Moreno, M. Cywiak, C. Pérez-López, and F. Mendoza-Santoyo "Vibration analysis of a metal plate by using laser vibrometry and fringe projection", Proc. SPIE 6046, Fifth Symposium Optics in Industry, 604615 (10 February 2006); https://doi.org/10.1117/12.674481

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