Acoustic Mechanics and Materials (Roberval)

This research unit aims at becoming a national center for excellence in Mechanical and Acoustics Design.
Its intended results are to develop reliable experimental and digital tools for computer aided design.

It deals with :

- calculation methods and optimization in mechanics, acoustics and vibrations
- hybridization of trials-calculations
- materials and surface behaviour

Applications

Mechanical resistance of metallic and composite structures
Reduction of acoustic and vibrational pollution

Research topics

Digital methods in mechanics

Discretization methods with or without meshing
Linear and non-linear digital methods in mechanics
Optimization methods and computer aided design

Applications

Structure resistance and durability
Assembling processes and forming
Fluid mechanics

Acoustics and vibrations

Direct and inverse digital methods for acoustics, vibro-acoustics and air-acoustics
Experimental methods for analyzing sound wave propagation and hybridization with calculations for non-destructive control of the characterization of materials and identifying sources of noise
Diagnostic methods and acoustic and vibrational signal processing

Applications

Improving internal acoustic comfort
Reducing outside noise
Identifying and characterizing sources of noise

Materials and surfaces

Developing theoretical and digital models and multi-physical/multi-level matching
Specific experimental techniques for analyzing surfaces and interfaces
Identifying behaviour laws for metallic, composite and polymer materials

Surface mechanics and interfaces
Multi-materials
Characterizing materials
Mechanics and environment correlation (corrosion, state of surface…)

Intersecting research actions

Developing measuring techniques and digital methods for global systems in order to readjust and validate models
Federating the know-how of researchers by encouraging interdisciplinary studies on complex systems and structures
Developing methodological expertise for defining and planning experiments and calculations for readjusting and validating results of digital models

Analysing global behaviour of mechanical structures and systems
Measuring, diagnosing and globally controlling structures
Calculating, measuring and techniques for readjusting models

Partners

Automotive, Rail, Aeronautics and Space : Renault, PSA, Arcelor, Valeo, Saint-Gobain, Inergy, Alstom, EADS, Airbus, SNECMMA, CNES, ONERA…
Energy : EDF, CEA, ADEME, ANDRA
Weapons : DGA
Software editors : ESI Group
Technical centers : CETIM, CETMEF

Contact

Jean-Marc Roelandt
Tél : +33 (0)3 44 23 45 50

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