Sponsor:
NASA Langley Research Center

Collaborator:
Purdue University

Methods have been developed to analyze and optimize sound within elastic-porous materials (e.g., foam), as well as in solid and fluid domains. Unlike approximate solution tools previously employed for modeling foam-type materials, these methods are based on rigorous physical and mathematical principles. This advanced development is utilized for the analysis of noise control treatments in various applications, including vehicle sound insulation, mufflers and ducts, headliners, seats, carpets, trim lining, and enclosure liners. For more details, see The Imagery of Sound. NASA Spinoff 2000