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Vibration 2018, 1(1), 105-122; https://doi.org/10.3390/vibration1010009

Vibration Suppression and Energy Harvesting with a Non-traditional Vibration Absorber: Transient Responses

Department of Mechanical Engineering, Lakehead University, Thunder Bay, ON P7B 5E1, Canada
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Received: 25 June 2018 / Revised: 22 July 2018 / Accepted: 7 August 2018 / Published: 10 August 2018
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Abstract

This paper focuses on vibration suppression and energy harvesting using a non-traditional vibration absorber referred to as model B. Unlike the traditional vibration absorber, model B has its damper connected between the absorber mass and ground. The apparatus used in the study consists of a cantilever beam attached by a mass at its free end and an electromagnetic energy harvester. The frequency tuning is achieved by varying the beam length while the damping tuning is realized by varying the harvester load resistance. The question addressed is how to achieve the best performance under transient responses. The optimum tuning condition for vibration suppression is based on the Stability Maximization Criterion (SMC). The performance of energy harvesting is measured by the percentage of the harvested energy to the input energy. A computer simulation is conducted. The results validate the optimum parameters derived by the SMC. There is a trade-off between vibration suppression and energy harvesting within the realistic ranges of the frequency tuning ratio and damping ratio. A multi-objective optimization is conducted. The results provide a guideline for obtaining a balanced performance. An experimental study is carried out. The results verify the main findings from the computer simulation. This study shows that the developed apparatus is capable of achieving simultaneous vibration suppression and energy harvesting under transient responses. View Full-Text
Keywords: damped vibration absorber; model B; optimal tuning; energy harvesting; transient responses damped vibration absorber; model B; optimal tuning; energy harvesting; transient responses
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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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Yuan, M.; Liu, K. Vibration Suppression and Energy Harvesting with a Non-traditional Vibration Absorber: Transient Responses. Vibration 2018, 1, 105-122.

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