Autors: Sinapov, P. V., Nikolov, N. D.
Title: Damping Ratio Determination of a Cantilever Steel Beam
Keywords: damping ratio; dynamic model; free damping oscillations; internal friction; vibration test

Abstract: The aim of the present work is to model the damping ratio of a mechanical system by comparing experimental and numerical studies. The mechanical system consists of a cantilever steel beam and an attached mass – accelerometer. The sys-tem’s free damped oscillations were measured. The dynamic model of the system is discretized using the finite element method, and the equations are solved in a Matlab® environment. The best match between the experimental and numerical results is obtained within the frequency interval (related to Rayleigh damping) between the first and the third natural frequencies, at a damping ratio of 0.0069.

References

    Issue

    Journal of the Balkan Tribological Association, vol. 28, issue 1, pp. 15-25, 2022, Bulgaria, Scibulcom Ltd., ISSN 13104772

    Copyright Journal of the Balkan Tribological Association

    Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus