Amorphous metallic alloys damping systems, towards a concrete research for high temperature – SAMARCH

The project concerns the research and optimization of new materials and processes with damping properties intended for high temperature environment (100-600°C) for which there is a demand that cannot be satisfied today. The applications targeted are engine manufacturers in the aeronautics, military and space industries (SAFRAN, MICROTURBO, TURBOMECA, CNES, Naval Group etc.) as well as the nuclear industry (CEA, ORANO, EDF etc.).
The project will be carried out collaboratively with two partners (the SIMaP laboratory and the ARTEC Company with complementary and essential skills, and also several subcontractors/suppliers.
The SIMaP laboratory has strong expertise in the design, development and mechanics and structural characterization of amorphous metal alloys, which represent a very promising way of substitution for the damping materials used in current anti-vibration systems, which are polymers, but unsuitable for use in the high temperature ranges covered here.
ARTEC designs and provides damping solutions based on its SPADD technology (Smart Passive Damping Device), originally developed for space applications. ARTEC solutions make it possible to reduce vibrations at the source and their consequences: acoustic radiation, internal constraints, fatigue. The impossibility of using polymers as dissipative materials at high temperatures, however, constitutes an obstacle for many promising markets: aeronautical engines, space or military launcher nozzles, nuclear industry.
The project proposes to research high-temperature damping materials, replacing the polymers traditionally used. A specific part of the study will focus on the integration of these materials into existing ARTEC technologies (SPADD®) in order to replace current polymers. The targeted efficiency ranges a domain from 200°C to 600°C, spread over several intervals to be defined. The subject's current TRL level is evaluated at 1, with an ambition to increase it to 4 at the end of the exploration.
The ambition of the project finds its source in a strong recurrence of unresolved problems in the treatment of vibrations in high thermal environments.
Most of the targeted applications have a dual nature given that the components in question are present on both the civil and military versions. The related themes are “materials” and “fluid-structure” (Design and sizing)