Descrizione del progetto
Prodotti tessili per il controllo del rumore nelle città
Le città sono luoghi rumorosi e una delle forme di inquinamento principali nei centri urbani moderni è quella acustica. L’esposizione cronica al rumore in questi ambienti rappresenta uno dei rischi principali per la salute di chi vive in città. La fibra di vetro e altri assorbitori acustici trovano ampio utilizzo, ma sono troppo costosi e poco pratici per il rumore a bassa frequenza, che rappresenta il rumore di fondo diffuso negli ambienti urbani. In questa categoria rientrano infatti i suoni del traffico e dei pali elettrici ad alto voltaggio. Il progetto TextMetamater, svolto nell’ambito delle azioni Marie Skłodowska-Curie, svilupperà una nuova classe di metamateriali composti da tessuti in grado di formare diversi elementi risuonanti (come strutture cave, a indice di gradiente e a membrana), utilizzando tecnologie tessili e gruppi integrati. Tali tecnologie offrono una nuova possibilità di risolvere il problema del rumore e di aumentare la qualità della vita negli ambienti urbani.
Obiettivo
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.).
Campo scientifico
- engineering and technologymaterials engineeringfibers
- engineering and technologymaterials engineeringtextiles
- natural sciencesphysical sciencesacoustics
- social scienceseconomics and businesseconomicsproduction economics
- engineering and technologymechanical engineeringmanufacturing engineeringadditive manufacturing
Parole chiave
Programma(i)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Meccanismo di finanziamento
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsCoordinatore
80333 Muenchen
Germania