Towards a Novel Acoustic Absorber Using a Magnetically Induced Geometric Nonlinearity in an Elastic Membrane
Conference paper
Shearer, DJ, Dance, S, Gomez-Agustina, L and Randell, J (2018). Towards a Novel Acoustic Absorber Using a Magnetically Induced Geometric Nonlinearity in an Elastic Membrane. Euronoise 2018, the 11th European Congress and Exposition on Noise Control Engineering. Crete, Greece 27 - 31 May 2018 EAA-HELINA.
Authors | Shearer, DJ, Dance, S, Gomez-Agustina, L and Randell, J |
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Type | Conference paper |
Abstract | Research on Energy Pumping based on the idea of nonlinear energy sinks exploiting Targeted Energy Transfer (TET) between a linear system and a nonlinear attachment has been successfully applied in vibration control. . The same approach promise the development of a novel passive, broadband dissipative mechanism with many potential acoustic applications such as in spaces for music practice and reproduction. This paper introduces and outlines ongoing research into the potential usability of the TET as a sound absorption mechanism using elastic membranes Initial experimental investigations have shown potential as a sound absorber that has a narrow dynamic range Results on early experimental work will be presented on the geometric nonlinearity imposed upon an elastic membrane by means of an electromagnet |
Keywords | Absorber |
Year | 2018 |
Publisher | EAA-HELINA |
ISSN | 2226-5147 |
Accepted author manuscript | License File Access Level Open |
Publication dates | |
27 May 2018 | |
Publication process dates | |
Deposited | 15 May 2018 |
Accepted | 02 Apr 2018 |
https://openresearch.lsbu.ac.uk/item/86qw7
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Accepted author manuscript
Doug S Euronoise 2018 full paper FINAL.docx | ||
License: CC BY 4.0 | ||
File access level: Open |
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