@article{abily2023nonlinear,
  abstract = {In recent years, various novel concepts of efficient low-frequency acoustic absorbers have been proposed. The present paper investigates in detail the non-linear acoustic response of resonators coupled to plates with thin slits. A laser-cut thin plate is positioned inside the neck of a Helmholtz resonator. Various shapes of slits are considered, including a cantilever beam. This system produces a strong acoustic response in the vicinity of the resonance frequency of the beam, which can be adjusted to target low frequencies. However, this acoustic response exhibits a significant dependence on the incident sound level. In this paper, these systems are mechanically and acoustically modelled and characterised under normal incidence in order to describe and predict the non-linearities observed. To this end, a generalised expression for the resistance and reactance of such thin structures is proposed and validated against experimental data.},
  added-at = {2024-10-24T13:24:40.000+0200},
  author = {Abily, Thibault and Regnard, Josselin and Gabard, Gwénaël and Durand, Stéphane},
  biburl = {https://www.bibsonomy.org/bibtex/274ac0e2562235dd5bb4495d692d09cad/adisaurabh},
  doi = {https://doi.org/10.1016/j.jsv.2022.117432},
  interhash = {0399ec33d705c4eada9c2f4c6d4322bc},
  intrahash = {74ac0e2562235dd5bb4495d692d09cad},
  issn = {0022-460X},
  journal = {Journal of Sound and Vibration},
  keywords = {rameezs23 helmholtz_resonator},
  pages = 117432,
  timestamp = {2024-10-24T13:24:40.000+0200},
  title = {Non-linear effects in thin slits for low frequency sound absorption},
  url = {https://www.sciencedirect.com/science/article/pii/S0022460X22006150},
  volume = 546,
  year = 2023
}

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