Determination of stress-deformation state of vibrating construction by fiber laser Doppler anemometer

Andrij Pefrovich Olijnyk; Lubomir I. Robur; Leonid K. Yarovoi

doi:10.1117/12.307725

1 June 1998 Determination of stress-deformation state of vibrating construction by fiber laser Doppler anemometer

Andrij Pefrovich Olijnyk, Lubomir I. Robur, Leonid K. Yarovoi

Proceedings Volume 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1998) https://doi.org/10.1117/12.307725
Event: Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 1998, Ancona, Italy

Abstract

The given work represents a stress-strained state non- destructive control determination method of vibrating objects realized using fiber laser Doppler anemometer. The method is developed for cylindrical shaped objects such as rods, pipelines. Input calculation data are the values of instantaneous vibration velocity in certain points located along the pipeline. However, there are no principle restrictions for another shape objects diagnostics. The calculation algorithm includes: interpolation of rod generatrix by cubic spline, construction of spline movement law for rod generatrix at initial and control time moments; the movement law of a rod is represented here in the form, which allows to take the equilibrium conditions into account. Further, movement equations of a body is satisfied in terms of minimal squares method. Experimental evaluation test for the method was conducted for harmonic vibrations of rods and different configuration pipes.

Citation Download Citation

Andrij Pefrovich Olijnyk, Lubomir I. Robur, and Leonid K. Yarovoi "Determination of stress-deformation state of vibrating construction by fiber laser Doppler anemometer", Proc. SPIE 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (1 June 1998); https://doi.org/10.1117/12.307725

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