« Dedicated manufacturing and experimental techniques for acoustic metamaterials and acoustic treatments »

DENORMS Action’s third Workshop on “Dedicated manufacturing and experimental techniques for acoustic metamaterials and acoustic treatments” was held from 5th to 7th February 2018 in Leuven (Belgium), co-organised by KU Leuven and Siemens Industry Software NV.

In this occasion, leading experts shared their knowledge with other researchers, PhD students, young scientists and engineers from all across Europe. Three sessions, each introduced by a plenary lecture, were proposed:

• Psychoacoustics of metamaterials and acoustic treatments
• Experimental techniques for testing metamaterials and vibro-acoustic treatments
• Manufacturing techniques for acoustic and mechanical metamaterials

Three Working Group meeting were held in the framework of the Workshop.

For more information, see the Workshop flyer and agenda.

Organising Committee

Jean-Philippe Groby (DENORMS Chair)
Olga Umnova (DENORMS Vice-Chair)
Nicolas Dauchez (Working Group 2 Co-Leader)
Monika Rychtarikova (Working Group 2 Co-Leader)
Pauline Rasera (DENORMS Grant manager)
Laurent De Ryck (Siemens Industry Software NV)
Jacques Cuenca (Siemens Industry Software NV)
Elke Deckers (KU Leuven)
Christ Glorieux (KU Leuven)

Scientific Committee

Elke Deckers (KU Leuven/PMA, Belgium)
Laurent de Ryck (Siemens Industry Software NV, Belgium)
Wim Desmet  (KU Leuven/PMA, Belgium)
Christ Glorieux  (KU Leuven/FYS, Belgium)
Bert Roozen  (KU Leuven/FYS, Belgium)
Monika Rychtarikova (KU Leuven/BWK, Belgium)
Kristian Jambrosic (University of Zagreb, Croatia)
Nicolas Dauchez (UTC Compiègne, France)
Henry Rice (Trinity College, Ireland)
Chiara Scrosati (ITC CNR, Italy)
Jesus Carbajo (Universidad de Alicante, Spain)
Bruce Drinkwater (University of Bristol, UK)
Steven Cummer (Duke University, USA)

Presentations

5th February – at Siemens Industry Software NV

• S. Manzato, The role of modal testing and analysis in the model verification and validation process
• L. Farkas & O. Atak, NVH numerical methods and virtual material characterisation
• J. Cuenca & L. De Ryck, Acoustic characterisation of ground surfaces and muffler components

6th February – at KU Leuven

Experimental techniques session

• Keynote lecture: W. Desmet (KU Leuven), On the design, manufacturing and experimental testing of resonant acoustic metamaterials
• Van Damme (Empa), Reduced sound and vibration transmission through inertia-amplification metamaterial panels
• Sangiuliano (KU Leuven), Vibration isolation in a simplified shock tower by means of locally resonant metamaterials
• L. Schwan (LAUM), Characterisation of double-conductivity metaporous screens
• Glorieux (KU Leuven), Microscopic elastic characterization of poroelastic (meta)materials

Psychoacoustics session

• Keynote lecture: N. Côté (IEMN-Wavely), Sound of metamaterials: audible effects of sonic crystals?
• L. de Ryck (Siemens), K. Jambrošić (Univ. Zagreb), Introduction to jury testing

7th February – at KU Leuven

Manufacturing session 1

• Keynote lecture: M. Wegener (KIT), 3D mechanical metamaterials by 3D laser nanoprinting 
• Romero Garcia (LAUM), Technical limits of 3D printing by stereolithography techniques in the design of subwavelength perfect acoustic absorbers
• Casarini (Univ. Strathclyde), 3D printing acoustic metamaterials based on membranes and Helmholtz resonators
• Méndez Ribó (TUD), Reproduction of multi-hierarchical structural surfaces by vat-photopolymerization
• Kennedy (Trinity College), Theoretical and experimental validation of an acoustic metamaterial produced through additive manufacturing

Manufacturing session 2

• K. Attenborough (Open Univ.), Simple porous absorber microstructures for additive manufacture
• B. Drinkwater (Univ. Bristol), Realising digital acoustic metamaterials
• P. Amado Mendes (Univ. Coimbra), Metaporous concrete: a preliminary study
• P. Serrano (Univ. Southampton), Measurement and prediction of aero-engine liners in the presence of high sound pressure levels, multiple tones and grazing flow
• F. Scamoni (ITC CNR), Experimental techniques for testing innovative acoustic coating systems