Application of the fractional oscillator model to describe damped vibrations
Author(s) -
С. Ш. Рехвиашвили,
А. В. Псху,
Praveen Agarwal,
Shilpi Jain
Publication year - 2019
Publication title -
turkish journal of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.169
H-Index - 26
eISSN - 1303-6122
pISSN - 1300-0101
DOI - 10.3906/fiz-1811-16
Subject(s) - physics , vibration , fractional calculus , equations of motion , classical mechanics , motion (physics) , order (exchange) , mathematical analysis , mechanics , quantum mechanics , mathematics , economics , finance
We consider a model of damped vibrations based on fractional differentiation. The model given is completely consistent with the classical model of vibration with viscous damping. We find the relation between the order of fractional differentiation in the equation of motion and Q-factor of an oscillator. The proposed approach seems more appropriate for the physical nature of the described system. The experiment with a vibrating piezoelectric plate, performed as part of the study, showed good agreement with the model and confirmed that the fractional oscillator model can be used to describe strongly damped vibrations.
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