Description du projet
Des textiles pour réduire le bruit dans les villes
Les villes sont bruyantes. Le bruit est l’une des plus importantes sources de pollution dans les villes modernes. L’exposition chronique au bruit urbain représente l’un des plus grands risques pour la santé des citadins. Alors que la fibre de verre et d’autres absorbeurs acoustiques sont largement utilisés, ils sont trop chers et peu pratiques pour le bruit à basse fréquence que l’on retrouve couramment comme bruit de fond dans les environnements urbains. Il s’agit du bruit émanant de la circulation et des poteaux électriques de haute tension. Le projet TextMetamater des Actions Marie Skłodowska-Curie développera une nouvelle catégorie de métamatériaux composés de textiles qui peuvent former différents éléments résonants (par ex. une structure à cavités, une structure à gradient d’indice et une structure à membranes) en utilisant des technologies textiles et des répartiteurs. Il s’agit d’une nouvelle opportunité de résoudre le problème du bruit et d’améliorer la qualité de vie dans les environnements urbains.
Objectif
Owing to rapid urbanization, millions of people are suffering noise, especially the noise in a low-frequency regime (<500 Hz). Conventional acoustic absorbers (e.g. glass fiber and polyester fiber) have been applied to control the noise by absorbing incident acoustic energy. While the sound absorption in the low-frequency regime using such absorbers is impractical because their dimensions are usually comparable to the large wavelengths of low-frequency sound waves. In recent years, acoustic metamaterials have exhibited excellent low-frequency sound absorption performance. However, these metamaterials usually produce only one narrowband absorption peak. Furthermore, the practical application of most of the acoustic metamaterials is hindered due to the high-cost manufacturing techniques (i.e. 3D printing) and low production efficiency. This project proposes a new classification of metamaterials which is composed of textiles. The textile manufacturing techniques are highly efficient. Textile fabrics can form different resonant elements (e.g. cavity structure, gradient index structure and membrane structure) employing textile technologies and manifold assemblies. Moreover, the different textile resonant elements can combine together to fabricate integrated broadband low-frequency sound absorbers. The knowledge and technologies from acoustic and textile disciplines will be integrated to achieve the aim. One of the most important aims of this project is to develop the metamaterials made by textiles to overcome the shortcomings of currently known metamaterials. This project provides a new possibility to solve the noise problem to increase life quality of the public. Another essential objective is to acquire new knowledge and skills from the host to improve the career competencies and professional experience of the applicant. This objective and sharing the skills with the host will be fulfilled through two-way transfer approaches (e.g. training, presentations, etc.).
Champ scientifique
- engineering and technologymaterials engineeringfibers
- engineering and technologymaterials engineeringtextiles
- natural sciencesphysical sciencesacoustics
- social scienceseconomics and businesseconomicsproduction economics
- engineering and technologymechanical engineeringmanufacturing engineeringadditive manufacturing
Programme(s)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Régime de financement
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsCoordinateur
80333 Muenchen
Allemagne