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Design and experimental study of a Nonlinear Energy Sink coupled to an electromagnetic energy harvester

Publication ,  Journal Article
Pennisi, G; Mann, BP; Naclerio, N; Stephan, C; Michon, G
Published in: Journal of Sound and Vibration
December 22, 2018

Nonlinear vibration absorbers, commonly referred to as Nonlinear Energy Sinks (NESs), have been the object of several theoretical and experimental studies over the past decade. This work illustrates the theoretical design and experimental realization of a Nonlinear Energy Sink coupled to an energy harvester. The mass of the Magnetic-Strung NES is a magnet which is linked to the primary system by means of two strings with adjustable pretension that work transversally. The restoring elastic force of the strings is modulated by the magnetic force applied by two magnets suitably located on the primary mass. Either a cubic or a bistable configuration may be obtained, depending on the distance of the additional magnets, NES's efficiency as an absorber is studied on a harmonically forced single degree-of-freedom primary system. The Target Energy Transfer (TET) from the primary system to the NES, as well as different response regimes like the Strongly Modulated Response (SMR), are experimentally observed. Furthermore, the harvesting of energy from the NES vibrations is also investigated by coupling the mechanical system with a coil for electromagnetic energy conversion. Consequently, the vibration energy of the primary mass is absorbed by the NES and finally converted into electric energy.

Duke Scholars

Published In

Journal of Sound and Vibration

DOI

EISSN

1095-8568

ISSN

0022-460X

Publication Date

December 22, 2018

Volume

437

Start / End Page

340 / 357

Related Subject Headings

  • Acoustics
  • 51 Physical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
 

Citation

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Pennisi, G., Mann, B. P., Naclerio, N., Stephan, C., & Michon, G. (2018). Design and experimental study of a Nonlinear Energy Sink coupled to an electromagnetic energy harvester. Journal of Sound and Vibration, 437, 340–357. https://doi.org/10.1016/j.jsv.2018.08.026
Pennisi, G., B. P. Mann, N. Naclerio, C. Stephan, and G. Michon. “Design and experimental study of a Nonlinear Energy Sink coupled to an electromagnetic energy harvester.” Journal of Sound and Vibration 437 (December 22, 2018): 340–57. https://doi.org/10.1016/j.jsv.2018.08.026.
Pennisi G, Mann BP, Naclerio N, Stephan C, Michon G. Design and experimental study of a Nonlinear Energy Sink coupled to an electromagnetic energy harvester. Journal of Sound and Vibration. 2018 Dec 22;437:340–57.
Pennisi, G., et al. “Design and experimental study of a Nonlinear Energy Sink coupled to an electromagnetic energy harvester.” Journal of Sound and Vibration, vol. 437, Dec. 2018, pp. 340–57. Scopus, doi:10.1016/j.jsv.2018.08.026.
Pennisi G, Mann BP, Naclerio N, Stephan C, Michon G. Design and experimental study of a Nonlinear Energy Sink coupled to an electromagnetic energy harvester. Journal of Sound and Vibration. 2018 Dec 22;437:340–357.
Journal cover image

Published In

Journal of Sound and Vibration

DOI

EISSN

1095-8568

ISSN

0022-460X

Publication Date

December 22, 2018

Volume

437

Start / End Page

340 / 357

Related Subject Headings

  • Acoustics
  • 51 Physical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences