This laboratory carries out acoustics, vibration and combined tests:
Vibration studies:
- Vibration tests with profile sine, random or following uniaxial or multi-axis time signals under controlled weather conditions
- Mechanical impact tests up to 100 g
- Acquisition of on track vehicle acceleration time signals and laboratory reproduction and analysis
- Experimental modal analysis on components and complex structures
- Calculation of Operating Deflection Shapes on structures submitted to vibration
- Analysis and detection of squeak & rattle under road vibration conditions
- Fatigue analysis and mechanical durability tests on components submitted to vibration
- Vibration transmission and vibration comfort tests on vehicle seats
- Electrical characterisation tests on components submitted to vibration under different climatic conditions
Acoustics studies:
- Measuring and analysis of operating noise and squeak & rattle produced by vibrations in semi-anechoic chamber
- Acoustic maps and acoustic intensity analysis
- Measuring sound pressure level and analysis in frequency
- Acoustic characterisation of materials (sound absorption and transmission) through impedance tube
- Acquisition of in-vehicle sound pressure and acceleration time signals
- Vibration tests combined with temperature for vibroacoustic and structural analysis of components
Vibration equipment:
- Multi-axis electro-hydraulic shaker (6 degrees of freedom, combined with climatic chamber)
- Multi-axis electro-hydraulic shaker (6 degrees of freedom, combined with semi-anechoic chamber)
- Biaxial electro-dynamic shaker
- Uniaxial electro-dynamic shaker
Acoustic chambers:
- Semi-anechoic chamber (8,000 L, acoustic analysis of operating noise and components under uniaxial vibration)
- Semi-anechoic chamber (100,000 L, studies on operating noise in vehicle and on components under multi-axis vibration – road signals)
- Acoustics and vibration acquisition systems
- Equipment for modal analysis of complex structures such as complete body-in-white