Spray-on Composite System for Low Frequency Acoustic Mitigation

Award Information
Agency:
Department of Defense
Branch:
Navy
Amount:
$69,994.00
Award Year:
2008
Program:
STTR
Phase:
Phase I
Contract:
N00014-08-M-0266
Agency Tracking Number:
N08A-014-0150
Solicitation Year:
2008
Solicitation Topic Code:
N08-T014
Solicitation Number:
2008.A
Small Business Information
RESODYN CORP.
130 North Main Street, Suite 600, Butte, MT, 59701
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
836287680
Principal Investigator
 Milan Ivosevic
 Principal Investigator
 (406) 497-5242
 milan.ivosevic@resodyn.com
Business Contact
 Lawrence Farrar
Title: President
Phone: (406) 497-5252
Email: lcfarrar@resodyn.com
Research Institution
 PENNSYLVANIA STATE UNIV.
 Jackie Raiser
 Office of Sponsored Programs
110 Technology Center
University Park, PA, 16802
 (814) 863-3411
 Nonprofit college or university
Abstract
This proposal addresses the need for an innovative and affordable material system that mitigates low frequency acoustic radiation through the hull induced by airborne noise in shipboard compartments containing Electronic Modular Enclosures. The proposed low frequency acoustic mitigation treatment is based on multiply-tuned, micro-sized absorbers embedded into a viscoelastic polymer matrix with a custom engineered dynamic modulus. Both, fully dense and porous polymer matrices and embedded micro-absorbs are developed and characterized in this work. The proposed acoustic treatment is a spray-on solution that can be cost-effectively apply in the field using Resodyn Corporation’s portable Polymer-composite Thermal Spray (PcTS) system. Damping properties of the proposed dynamic attenuation method involving multiple tuned absorbers can be optimized to attenuate a predetermined low frequency acoustic noise band and meet all other shipboard application requirements.

* information listed above is at the time of submission.

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