Objectif Achieving a sufficient sound insulation of buildings is a complex problem since multiple transmission paths are important, uncertainties can have a large effect, and acoustic performance requirements often conflict with structural and thermal requirements. Furthermore, accurate vibro-acoustic modelling across the entire building acoustics frequency range presently requires a huge computational effort. As a result, the acoustic development of building systems is usually based on general design rules, insufficiently accurate prediction models and many experimental prototype tests. Such development is costly and time consuming, and leads to suboptimal designs. This project therefore aims to develop an efficient yet sufficiently accurate prediction framework for the acoustic design of building systems which takes all uncertainties into account and which opens the way for design optimization. Four fundamental breakthroughs are required. First, a new approach to high-frequency subsystem modelling will overcome the limitations of the current statistical energy analysis paradigm and handle a high degree of geometric and material complexity. Second, a modelling framework for built-up systems will be developed, which incorporates different component model types and which switches between them as the frequency increases. The third development consists of quantifying the combined effect of all uncertain parameters on the overall sound insulation performance in a logically consistent and computationally efficient way. Finally, a robust optimization approach that spans the entire building acoustics frequency range and that accounts for all relevant non-acoustic performance criteria as well will be developed. Each development will be complemented by showcase applications in building acoustics, yet the fundamental nature of the developments make that they will have a profound impact in all disciplines where the study and/or control of mechanical wave propagation are important. Champ scientifique engineering and technologycivil engineeringstructural engineeringnatural sciencesphysical sciencesacoustics Mots‑clés building acoustics sound transmission numerical simulations diffuse fields uncertainty quantification design optimization topology optimization Programme(s) H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme Thème(s) ERC-2016-STG - ERC Starting Grant Appel à propositions ERC-2016-STG Voir d’autres projets de cet appel Régime de financement ERC-STG - Starting Grant Institution d’accueil KATHOLIEKE UNIVERSITEIT LEUVEN Contribution nette de l'UE € 1 386 875,00 Adresse OUDE MARKT 13 3000 Leuven Belgique Voir sur la carte Région Vlaams Gewest Prov. Vlaams-Brabant Arr. Leuven Type d’activité Higher or Secondary Education Establishments Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 1 386 875,00 Bénéficiaires (1) Trier par ordre alphabétique Trier par contribution nette de l'UE Tout développer Tout réduire KATHOLIEKE UNIVERSITEIT LEUVEN Belgique Contribution nette de l'UE € 1 386 875,00 Adresse OUDE MARKT 13 3000 Leuven Voir sur la carte Région Vlaams Gewest Prov. Vlaams-Brabant Arr. Leuven Type d’activité Higher or Secondary Education Establishments Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 1 386 875,00