Physical Optics Corporation — Department of Defense SBIR Phase II: To address the Navy's need for technologies that damp/absorb vibration effects in an

Description

To address the Navy's need for technologies that damp/absorb vibration effects in an aircraft carrier deck environment, Physical Optics Corporation (POC) proposes to advance development of the Hybrid Self-Control and Power-Harvesting Tile (HYSPOT) proven feasible in Phase I. HYSPOT's innovative design eliminates or reduces the noise and vibration at the noise source level. In Phase I, POC conclusively demonstrated the feasibility of the HYSPOT through extensive finite element analysis (FEA) modeling, prototype development, and testing. POC built a working Phase I HYSPOT unit demonstrating acoustic attenuation using a self-sensing/self-controlling structure. The preliminary design of the HYSPOT acoustic tile has been successfully simulated with FEA models, fabricated, and tested under various laboratory conditions, showing noise reduction of>20 dB in SPL re 20 uPa, which is equivalent to reducing the noise at a busy roadside to conversational level, 1 m away. In Phase II (Base and Option), POC will optimize the HYSPOT configuration, hardware, and software to produce a fully functional HYSPOT system prototype; POC plans to develop a HYSPOT prototype and experimental rig to examine the effectiveness of noise isolation and vibration and to test that prototype in the Huntington Ingalls Industries FlexLab mock-up aircraft carrier.