Clément Ader Space

For 40 years, the acoustic firm Tisseyre + Associés has stood out internationally thanks to its tailor-made culture and its innovative solutions for both acoustics and vibrations. For vibrations, via a European Predit® research contract, we have developed the structural impedance break technique. Not only more effective than the classic suspension technique, it is also less costly in terms of resources (both financial and material). For acoustics, we have developed a joint working methodology with the architect using our digital 3D modeling tools modeling the sound ambiances of different spaces. These tools and methodologies are essential working supports for close collaboration with architects at all stages of the project. By anticipating, optimizing and integrating acoustic solutions within the architecture, we build coherent sound spaces according to uses and needs.

Vibration issues solutions

The Clément Ader space testing laboratory brings together several activities that are difficult to reconcile in the same building: testing platforms generating significant vibrations (drop towers, vibrator) and tools extremely sensitive to vibrations such as microscopes at very high HD. To meet this challenge, we resorted to successive impedance breaks on all the structures of the internal envelopes of the building. Thus, the acoustic trenches provide a buffer between the vibration emission zone and the receiver. This solution makes it possible to reconcile these activities with opposing uses and achieve levels of vibration attenuation by a factor of 10.^-9, especially at very low frequency (from 1 Hz).

Complete acoustic mission

Thanks to our acoustic models of the rooms and the environment, we were able to model the sound impact of activities from the design phase. So,

• For neighbors, we have integrated acoustic solutions into the architecture so that the activities of the test platforms do not cause any neighborhood nuisance.
• For the building, we optimized the insulation between the different areas of the building according to the intended uses.