Missions

The performance of underwater noise mitigation systems is currently poor at the sub-wavelength scale, and an effective solution to attenuate underwater waves over broadband low frequencies does not exist, yet. In this context, the objective of this post-doc position is to take inspiration from Nature to design new metamaterials for underwater noise reduction and/or control wave reflectivity / absorption over broad sub-wavelength frequency ranges.

Activités

The candidate will be asked to identify and investigate the dynamical properties of biological systems that can be potential candidates to guide / help the design of innovative phononic crystals / metamaterials in the context of underwater acoustics, where (heavy) fluid-structure interaction takes place invalidating most of the approaches used in airborne acoustics. Topological features will also be investigated.
The candidate is expected to contribute on the analysis and interpretation of data, manuscript preparation and dissemination of the results in the context of national and international conferences/meetings.

Compétences

The ideal candidate is required to hold a PhD in engineering, physics, or similar disciplines with experience in numerical methods. A solid background in structural mechanics and wave propagation in periodic media is also required. A good knowledge in fluid-structure interaction is also recommended. Strong scientific curiosity, work ethics and autonomy are strongly recommended.

Contexte de travail

The Institute of Electronic, Microelectronic and Nanotechnology (UMR CNRS 8520 – https://www.iemn.fr/en/) is in Villeneuve D'Ascq, close to the city of Lille (France). With a total staff of over 500 persons, the institute has a broad area of research activity ranging from physics to materials science, acoustics, micro- and nanotechnology. The laboratory of Acoustics (where the candidate will carry on her / his research and where she / he will have her / his office) is in the city center of Lille, at 41 Boulevard Vauban, within the « Junia » buildings.
This contract is supported by the ERC StG project POSEIDON on « Unconventional principles of underwater wave control in the sub-wavelength regime ».

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.