PhD Acoustic metamaterials for transmission cancellation (M/W)

This doctoral project is part of a larger, multidisciplinary and international project METAVISION: “METAmaterials for VIbration and Sound reductION” (no. 101072415) funded under the Marie-Sklodowska-Curie Actions Doctoral Networks within the Horizon Europe Programme of the European Commission.
METAVISION aims to reconcile two conflicting trends. On the one hand, people become increasingly aware of the negative health impact of excessive noise and vibration exposure. On the other hand, every kilogram of mass removed from the logistics chain has a direct economic and ecological benefit. Current noise and vibration solutions still require too much mass or volume to be practically feasible, particularly for lower frequencies. There is thus a strong need for low mass, compact material solutions with excellent noise and vibration characteristics, for which recently emerged so-called metamaterials have shown immense potential. METAVISION aims to develop novel design and analysis methods in view of broadening the performance and applicability of metamaterials, revolutionize the manufacturing of metamaterials towards large-scale and versatile solutions and advance academically proven metamaterial concepts towards industrially relevant applications.
METAVISION gathers universities (KU Leuven, Université du Mans, Universidade de Coimbra), research institutes (Centre National de la Recherche Scientifique, Swiss Federal Laboratories for Materials Science and Technology EMPA) and small- and large-scale industry (Siemens Industry Software NV, Materialise NV, MetAcoustic, Phononic Vibes srl, Airbus, Swiss Federal Railways, Mota-Engil Engenharia e Construção S.A.) from manufacturing , construction, transportation, machine design and noise and vibration solution sectors with the relevant expertise to create the coordinated research environment needed to bring metamaterials from academic concepts to large-scale manufacturable and industrially applicable noise and vibration solutions, paving the way towards a quieter and greener Europe.

We offer a fully funded 3-year PhD position at LAUM, UMR 6613 CNRS. Perfect absorption of acoustic waves has been the focus of numerous studies this last decade. Several design strategies have been proposed to achieve perfect absorption either focusing on the subwavelength or on the broadband aspects. In this PhD, you will focus on transmission cancellation, that is the total annihilation of the acoustic wave energy. Various strategies, involving non-reciprocal features, will be investigated and combined.