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Adaptive Torsional Tuned Vibration Absorber for Rotary Equipment

Department of Mechanical Engineering, Khalifa University of Science and Technology (SAN Campus), P.O. Box 2533, Abu Dhabi, UAE
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Author to whom correspondence should be addressed.
Current address: Central Engineering Division, ADNOC Offshore, P.O. Box 303, Abu Dhabi, UAE.
Vibration 2019, 2(1), 116-134; https://doi.org/10.3390/vibration2010008
Received: 15 December 2018 / Revised: 17 February 2019 / Accepted: 19 February 2019 / Published: 28 February 2019
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Abstract

This paper proposes an innovative solution to suppress torsional vibrations in any rotating machinery with a variable frequency of excitation, or a variable natural frequency. The adaptive torsional tuned vibration absorber (ATTVA) was designed using an integrated electromagnetic circuit, which can adapt its natural frequency to match the varying natural frequency of any Multi Degree of Freedom (MDOF) rotating system. A two degree of freedom rotating system was modeled along with the integrated ATTVA using the bond graph modeling technique. Simulation results showed that torsional vibrations can be easily attenuated by controlling the capacitance shunted to the voice coil circuit. The ATTVA was designed, fabricated and evaluated on a test rig in the laboratory. Test results revealed good matching between the mathematical model and the experimental data. Experiments were performed with different configurations of the ATTVA, and the experimental results showed reasonable suppression in vibration magnitude at the desired frequency. View Full-Text
Keywords: torsional vibrations; tuned vibration absorber; rotating machinery; drill string; bond graph; variable frequency torsional vibrations; tuned vibration absorber; rotating machinery; drill string; bond graph; variable frequency
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Abu Seer, T.; Vahdati, N.; Shiryayev, O. Adaptive Torsional Tuned Vibration Absorber for Rotary Equipment. Vibration 2019, 2, 116-134.

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