Archives de l’auteur : DENORMS CA 15125

A propos DENORMS CA 15125

DENORMS (Designs for Noise Reducing Materials and Structures) Action, CA 15125, is funded by the European Cooperation in Science and Technology (COST). DENORMS Action activities were launched on the 9th March 2016 for 4 years.

Training School 5

Use and characterisation of new acoustic treatments and tools

Budapest (Hungary), December 2019

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This Training school is dedicated to the industrial partners and aims at training them to the newly developed sound absorbing and sound controlling structures, both theoretically and experimentally.

This Training School will be organized around 3 actions. During the first day, refresher training courses will be organised. The next two days will be devoted to the training to the new methods and use of new structures, during which courses and practicals will alternate.

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Publicités

Training School 4

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« Wave propagation in complex and microstructured media »

DENORMS Action Training School 4 « Wave propagation in complex and microstructured media » was held from 20th to 30th August 2019 in Cargèse (FR).

This Training School, co-organised by PMMH, UMR CNRS 7636, LAUM, UMR CNRS 6613, Institut Langevin, UMR CNRS 7537, and POEMS, UMR CNRS 7231, aimed at presenting the latest theoretical advances and experimental activities in the field of wave propagation in complex media, with a particular focus on wave guides in different contexts including the case of microstructured media, typically metamaterials.

The main objective of the school was the pooling of knowledge in this domain so that participants can learn the formalisms – techniques – methods – tools from the different communities of wave physics and thus, enlarge their knowledge for their own research. The interdisciplinary nature of this school should generated exchanges and collaborations between the different communities involved in this subject.

The affected wave domains covered acoustics, elastodynamics, electromagnetism as well as water waves.

More information in the Training School website and on the program.


Slides of the lectures

First week « Effective dynamics of microstructured media »

Other slides of the lecture will soon be available.

Second week « Guided Waves »

Other slides of the lecture will soon be available.

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Workshop 8 – Final event

DENORMS Action Final event and dissemination

Coimbra (PRT) – Feruary 2020

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This Workshop will be jointly organized with the final event of the DENORMS Action around 4 specific actions.

First, selected members, who benefited from STSM and preferably ECI, PhD candidate and women from ITC, will present their work to the network members during a day.

Second, the results of the Round Robin Tests (mechanical characterization of poroelastic materials, low frequency measurement in reverberant rooms, and low frequency measurement of absorption coefficient) will be presented and disseminated to Action members, policy makers and people involved in the standardization of measurement methods.

Third, results arising from the Action will be presented on a public place in the city in order to increase the visibility and attract student in the field.

Finally, some materials and structures, which are usually good looking, arising from the Action and also coming from all around the world will be exposed in the Science and Technology Museum and presented to public as well as to visiting children from local schools (interpreters are expected).

The last MC meeting will also takes place during this event, during which we will take stock of the Action, the MC member will provide feedback on the Action, and the future Actions will be discussed.

60 participants are expected (40 of which will be funded, the decision about funding will be made by the Organising Committee).

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Workshop 7

Second edition of the « Symposium on Acoustic Metamaterials » (SAM)

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The second edition of the « Symposium on Acoustic Metamaterials” (SAM) will be held from 9th to 11th October 2019 in Ischia (Italy) and organised by YRAM (Young Researchers in Acoustic Metamaterials), COST Action DENORMS CA 15125 and University of Salerno.

This second Symposium on Acoustic Metamaterials is targeted to PhD candidates, Early Career Investigators (i.e. researcher whose career spun less than 8 years since the date of the PhD) and aims at sharing new advances and breakthroughs as well as fostering the community of young researchers in the field of acoustic metamaterials. The second SAM will be organised around 6 different sessions comprising 20 min talks and plenary lectures.

More information can be found on the SAM website.

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Workshop 6

« Industrial days on new acoustic treatments, acoustic metamaterials and sonic crystals »

The sixth workshop « Industrial Days on New Acoustic Treatments, Metamaterials and Sonic Crystals” organised by COST Action DENORMS took place from February 28th to March 1st in Athens, Greece.

The objective of the workshop was to facilitate dialogue and establish new collaborations between industry and academia on the topics of new acoustical materials / metamaterials. 10 companies and 8 university research groups participated in the event. The program included presentations, group work and social activities.

Each participating company had the opportunity to present its unique development capacities, products and processes (20 min + 5 min of questions) and was encouraged to propose an informal discussion topic.

COST Action DENORMS provided 30 grants covering the costs of meals and accommodation for participants in Athens.

The following companies participated in the Workshop:

  • Recticel
  • St Gobain
  • BASF
  • Trèves Group
  • Carbon Air
  • Dyson
  • Embraer
  • Matelys
  • Acoustic Metamaterials Group
  • Safran Group

AGENDA
The agenda is available here.

VENUE
National Technical University of Athens
Zografou Campus
9, Iroon Polytechniou str
15780 Zografou

PRESENTATIONS  

M. Gontier (Recticel), Technical polyurethane foam …. Acoustic performance through Chemical design

P. Leroy (St Gobain), Mineral wool and plaster board : Fabrication process, applications in buildings and opportunities for metamaterials

R. De Oliveira (BASF), Processing and chemistry for acoustic foams

A. Duval (Trèves Group), Microstructure morphology control of porous materials through processes: a manufacturing technology overview

R. Venegas (Carbon Air), Applications of multiscale porous materials in dynamics and acoustic

B. Van Damme (EMPA, Materials Science and Technology), Dealing with nonlinearity: practical measurement and modeling strategies

C. Perrot (MSME, Univ. Paris Est), Multisclale prediction of acoustic properties for glass wools: Computational study and experimental validation

I. Antoniadis (NTUA), Active and passive noise mitigation activities in DSL, NTUA

A. Paradeisiotis, I. Antoniadis (NTUA), Noise Control at the Low Frequency Range

T. Zielinski (IPPT PAN), Sound propagation and absorption in open-porosity media: Microstructure-based modelling and experimental validation

I. Perez (Dyson), Designing for acoustics: Aero-Acoustics Research at Dyson

S. Futatsugi (Embraer), A preliminary study on the use of resonant acoustic metamaterial on aircraft noise control treatment

L. Jaouen (Matelys), Characterization and modelling challenges of multiple dynamics materials aka metamaterials

S. Chen (AMG), Acoustic Metamaterials for Noise Control

J. Mardjono (Safran Group), Overview of SAFRAN acoustic absorbing material for aircraft/cabin noise reduction and future challenges

E. Deckers (KULeuven), Vibroacoustic locally resonant metamaterials applications

M. Cervenka (Czech Technical Univ. in Prague), Optimized reactive silencers composed of elongated side-branch resonators

P. H. Mareze (Coimbra Univ.), Acoustic parameters dispersion of aeronautical materials used for noise control, and prospects studies about optimized pore geometry

J.-P. Groby (LAUM, UMR CNRS 6613), Control of the acoustics waves in the subwavelength regime: metamaterials for perfect absorption and metadiffusers

Metamaterials 2017

Special Session « Acoustic metamaterials for noise reduction » in Metamaterials 2017

The Eleventh International Congress on Artificial Materials for Novel Wave Phenomena – Metamaterials 2017 was held on 27th to 31st August 2017 in Marseille, France.

DENORMS Action (CA15125) and the working group Audible Acoustic Metamaterials of the GdR META organised a Special Session « Acoustic metamaterials for noise reduction ». This special session goal was to provide timely and high level presentations in the design of innovative, light, thin, and multi-functional noise reducing treatments and to develop objective and subjective methods and standards for their performance characterization and exploitation. This session aimed at bringing together scientists and engineers working on MetaMaterials/MetaSurfaces/Sonic Crystals and non-conventional porous material based structures.

Topics included:

  • Acoustic metamaterials, graded media, phononic crystals,
  • Linear/nonlinear wave propagation in periodic structures,
  • Homogenization of audible composites,
  • Modulated phononics crystals and metamaterials,

For more information, see the meeting website http://congress2017.metamorphose-vi.org.

ISMA 2018

Special session at the ISMA2018 Noise and Vibration Engineering Conference

A DENORMS special session will be held during the ISMA2018 Noise and Vibration Engineering Conference. The conference is organised by the division PMA of the KU Leuven in Leuven (Belgium) from 17 to 19 September 2018.

Abstracts for this special session can be submitted via the regular procedure of the conference, which can be found on https://www.isma-isaac.be/isma2018/abstract-submission/, but ‘DENORMS’ must be entered in the remarks field to the programme committee.

The deadline of the abstract submission for  special sessions is 15/02/18.

The ISMA2018 Noise and Vibration Engineering Conference is the 2018’s edition of a sequence of biennial international conferences on noise and vibration engineering, structural dynamics and modal testing. Since 2012 the ISMA conference is organized in conjunction with the USD conference on Uncertainty in Structural Dynamics. The 2016 edition of ISMA/USD conference was attended by more than 600 participants from academia and industry. The technical programme counted approximately 450 technical papers scheduled into 8 parallel tracks and 4 plenary poster sessions. Full conference proceedings will be published digitally and submitted for reference in the ISI Web of Science. A single registration will grant access to both the ISMA and the USD conference.

For more information, see the meeting website http://www.isma-isaac.be or contact the ISMA Conference secretary, Mrs. L. Notré lieve.notre@kuleuven.be