Morphing Resonators for Adaptive Noise Reduction
Navy SBIR FY2008.2

Sol No.: Navy SBIR FY2008.2
Topic No.: N08-142
Topic Title: Morphing Resonators for Adaptive Noise Reduction
Proposal No.: N082-142-0306
Firm: Cornerstone Research Group, Inc.
2750 Indian Ripple Road
Dayton, Ohio 45440
Contact: Jason Hermiller
Phone: (937) 320-1877
Web Site:
Abstract: Cornerstone Research Group Inc. (CRG) proposes to advance materials and processes for suppressing radiated noise in an aircraft engine nacelle. CRG seeks to eliminate the complexity of current active systems through the use of CRG's "smart" materials in shape memory polymer (SMP) based material systems. Design tools will be developed to computationally predict performance of morphing resonator concepts and provide a frame work to establish design methods to develop adaptive liners for all Navy aircraft. The morphing resonator concept will reduce broadband noise and tune absorption properties through flight regime changes. CRG will leverage much experience in morphing system design to realize the morphing resonator concept.
Benefits: Operational Benefits: (1) Broadband noise reduction, (2) structural integrity, (3) maintain engine performance, (4) tunable damping properties, and (5) multiple flight regimes. Commercial Applications: (1) Commercial airlines, (2) aerospace, and (3) reduce civilian noise footprints.