Analysis and optimal design of a vibration isolation system combined with electromagnetic energy harvester
Journal article
Authors | Diala, Uchenna, Mofidian, SM Mahdi, Lang, Zi-Qiang and Bardaweel, Hamzeh |
---|---|
Abstract | This work investigates a vibration isolation energy harvesting system and studies its design to achieve an optimal performance. The system uses a combination of elastic and magnetic components to facilitate its dual functionality. A prototype of the vibration isolation energy harvesting device is fabricated and examined experimentally. A mathematical model is developed using first principle and analyzed using the output frequency response function method. Results from model analysis show an excellent agreement with experiment. Since any vibration isolation energy harvesting system is required to perform two functions simultaneously, optimization of the system is carried out to maximize energy conversion efficiency without jeopardizing the system’s vibration isolation performance. To the knowledge of the authors, this work is the first effort to tackle the issue of simultaneous vibration isolation energy harvesting using an analytical approach. Explicit analytical relationships describing the vibration isolation energy harvesting system transmissibility and energy conversion efficiency are developed. Results exhibit a maximum attainable energy conversion efficiency in the order of 1%. Results suggest that for low acceleration levels, lower damping values are favorable and yield higher conversion efficiencies and improved vibration isolation characteristics. At higher acceleration, there is a trade-off where lower damping values worsen vibration isolation but yield higher conversion efficiencies. |
Keywords | Mechanical Engineering; General Materials Science |
Year | 2019 |
Journal | Journal of Intelligent Material Systems and Structures |
Journal citation | 30 (16), pp. 2382-2395 |
Publisher | SAGE Publications |
ISSN | 1045-389X |
1530-8138 | |
Digital Object Identifier (DOI) | https://doi.org/10.1177/1045389x19862377 |
Web address (URL) | http://hdl.handle.net/10545/624294 |
hdl:10545/624294 | |
Publication dates | 17 Jul 2019 |
Publication process dates | |
Deposited | 27 Nov 2019, 15:10 |
Accepted | 2019 |
Contributors | University of Sheffield |
File | File Access Level Open |
https://repository.derby.ac.uk/item/92y24/analysis-and-optimal-design-of-a-vibration-isolation-system-combined-with-electromagnetic-energy-harvester
Download files
36
total views0
total downloads0
views this month0
downloads this month