Tunable Interior Rotorcraft Noise Control

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX12CD10P
Agency Tracking Number: 114255
Amount: $124,997.00
Phase: Phase I
Program: SBIR
Awards Year: 2012
Solicitation Year: 2011
Solicitation Topic Code: A2.09
Solicitation Number: N/A
Small Business Information
Cornerstone Research Group, Inc.
OH, Dayton, OH, 45440-3638
DUNS: 130020209
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jason Hermiller
 Principal Investigator
 (937) 320-1877
 hermillerjm@crgrp.com
Business Contact
 Stephen Vining
Title: Business Official
Phone: (937) 320-1877
Email: viningsd@crgrp.net
Research Institution
 Stub
Abstract
CRG has recently developed a new class of shape memory polymers (SMP) that are electrically activated, as opposed to the more mature thermally activated SMPs. Electrically activated shape memory polymers (EASMP) open a new design space of unexplored functionality beyond what has been considered for thermally activated materials. This project will combine the advantages of EASMP with the design of state-of-the-art gearbox isolators and interior panels to provide the ability to tune these components for specific operational frequencies. With the use of EASMP integrated components, by semi-actively altering the interior panels or gearbox isolators' frequency response, it will be possible to better target and control particularly irritating tones related to the aircraft's flight mode. CRG proposes to advance EASMP maturity which is applicable across many other application areas and has the benefit of alternative stimuli boasting ultra-low power requirements and more potential for faster switching times. This material will be refined and further developed to meet the operational performance requirements for the rotorcraft isolator application.

* information listed above is at the time of submission.

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