High Attenuation Thermal Barriers for the AAAV (MSC P1B16-327)

Structural vibrations and heat produced by high output turbo-machinery can adversely impact the performance of nearby personnel and contribute to costly and premature failure of equipment within the AAAV. The product of the SBIR program outlined in this proposal is a lightweight composite structural enclosure designed to provide maximum acoustic attenuation and thermal shielding. The design concept proposed by Materials Sciences Corporation integrates two synergistic noise control technologies into a sandwich construction in which constituent materials, layering sequences, fiber architectures, and a structural geometry are tailored to maximize thermal shielding and transmission losses at a minimum weight. The feasibility of our integral acoustic attenuation concepts into low thermal conductivity panels will be demonstrated by designing, fabricating and testing five panel configurations to assess their performance relative to the AAAV performance goals.