Théo Cavalieri

Stellantis

Modeling of resonant and periodic passive metamaterials for acoustic beam-steering
Optimisation methods, experimental validations. Extension of previous models to 3D structures. Targeting broadband acoustic sources.

CNRS

Characterisation methods for anisotropic porous materials
Numerical investigations and scientific reporting

EMPA

Modelling of microporous mineral foams for acoustics
Monitoring and analysis of train pass-by noise and vibrations with SBB
Optimisation and applications to sound absorption
Scanning electron microscopy

Stellantis

Modeling of resonant and periodic passive metamaterials for acoustic beam-steering
Optimisation methods, experimental validations.

SAFRAN: Aircraft Engines

PhD Thesis - Modeling and design of meta-porous graded materials incorporating micro-resonateurs for sound attenuation in lined ducts.

This PhD aims at designing and experimentally validating novel porous materials specifically designed to absorb low-frequency sound. With standard materials this requires very thick treatments that cannot be used in practical applications. The challenge is to provide strong sound absorption and attenuation with thin treatments. The focus will be on functionally graded, digital meta-porous materials that incorporate micro-resonators to efficiently attenuate low frequency waves in lined ducts. New possibilities offered by rapid prototyping techniques will be employed to both manufacture and guide the design of these new acoustic treatments.

• MACIA Press (French)
• SAFRAN Press (French)

Le Mans University

Mission - Numerical modeling of homogenised anisotropic porous media.

Bibliographical study and preliminary work on porous materials in acoustics. Development of analytical and numerical models, for the homogenization of elementary cells and wave propagation in porous media.

SNCF: Innovation & research

Master Thesis - Modeling of acoustic panels, an application of sonic crystals to railway noise reduction

SNCF as the manager of the french national rail network is obliged to respect the regulations in force concerning the exposure to the noise of the residents. The idea that we wish to study through this Master Thesis is the possibility of using resonant sonic crystals for a case of railway application. This approach is part of a research and innovation work in the field of acoustic barriers: finding, optimising, developing new concepts adapted to railway constraints and needs.

Master of Science, Research in Acoustics

Main skills:

• Audio Signal Processing
• Mechanics
• Finite Element Method
• Non-Destructive Testing
• Vibroacoustics