Abstract
This article is about solving the problem of maintaining the resonant vibration mode in a vibration transport and production machine with self-synchronizing vibration exciters at an undetermined mass of work material. An algorithm for maintaining automatic resonant mode maintenance is proposed. This algorithm is based on using preliminary numerical modeling (dynamic portrait) results and allows calculating the natural frequency (work material mass) in the real-time mode and implementing the necessary control over the vibration exciter rotation frequency according to the phase difference between the perturbation force and the oscillations of the working body. The results of numerically modeling the tuning of the vibration machine to the resonant mode while using the developed algorithm with variations in the mass of the work material are provided. A laboratory oscillation wobbler screen prototype is designed and equipped with an automatic resonant mode maintenance system. The operational ability and efficiency of the proposed solutions is confirmed by numerical and full-scale test results.
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Funding
This study was funded by the Russian Science Foundation, project no. 21-19-00183 (https://rscf.ru/en/project/21-19-00183/).
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Translated by S. Kuznetsov
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Lyan, I.P., Panovko, G.Y. & Shokhin, A.E. Maintaining Resonant Modes of Vibration Transport and Production Machines with Unbalance Vibration Exciters. J. Mach. Manuf. Reliab. 52, 422–431 (2023). https://doi.org/10.3103/S1052618823050138
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DOI: https://doi.org/10.3103/S1052618823050138