EXPERIMENTAL ANALYSIS OF FORCED NON-LINEAR OSCILLATIONS OF RODS WITH TRANSVERSE BREATHING CRACKS

Authors

O. F. Polishchuk, A. Podgorny Institute of Mechanical Engineering Problems of NASU (2/10, Pozharsky St., Kharkiv, 61046, Ukraine), e-mail: polishchuk@ipmach.kharkov.ua

K. V. Avramov, A. Podgorny Institute of Mechanical Engineering Problems of NASU (2/10, Pozharsky St., Kharkiv, 61046, Ukraine), e-mail: kvavramov@gmail.com, ORCID: 0000-0002-8740-693X

K. B. Myagkokhleb, A. Podgorny Institute of Mechanical Engineering Problems of NASU (2/10, Pozharsky St., Kharkiv, 61046, Ukraine), e-mail: mkb@ipmach.kharkov.ua

Abstract

Forced oscillations of rods with transverse breathing cracks of great depth are experimentally investigated. The oscillations of the rods are excited by the kinematic embedding motion, which is reproduced using a vibrostand. The results of the analysis of oscillations are presented on the amplitude-frequency characteristics. The Fourier spectra of periodic oscillations are analyzed. Areas of polysemy of oscillations are investigated. Areas of polysemy of oscillations are investigated.

Keywords: forced non-linear oscillations, rod, crack

References

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Received 23 March 2017

Published 30 June 2017