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Experimental determination of damping coefficient of a support with elastic ring under harmonic loading
- Source :
- Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, Vol 23, Iss 3, Pp 69-81 (2024)
- Publication Year :
- 2024
- Publisher :
- Samara National Research University, 2024.
-
Abstract
- The article describes the possibility of determining the damping coefficient of a support with an elastic ring based on dry friction forces using a special test bench. The forced excitation force is set by the oscillations of a compact speaker installed on top of the oscillating mass through a U-shaped crossbar. The object of the study is a damper with an elastic ring, that is a thin-walled ring with evenly distributed bulges inside and outside, arranged in a checkerboard pattern. The damping coefficient is estimated using a device for simulating a rotor support, an acceleration sensor, an exciter speaker, a controller and a processing station. The amount of damping is estimated according to the width of the peak at the resonant frequency. A comparison is given of the magnitude of the damping coefficient obtained from the analysis of the resonance peak and from the decay rate during the impact experiment.
Details
- Language :
- English, Russian
- ISSN :
- 25420453 and 25417533
- Volume :
- 23
- Issue :
- 3
- Database :
- Directory of Open Access Journals
- Journal :
- Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.3f1a21e179fd468e942e70a36829043e
- Document Type :
- article
- Full Text :
- https://doi.org/10.18287/2541-7533-2024-23-3-69-81