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Acoustics, Volume 7, Issue 4
December 2025 - 21 articles
Cover Story: This study examines theoretical limits on acoustic absorption for underwater coatings without focusing on specific materials. Using mechanical models with discrete masses, springs, and dampers, it incorporates realistic limits on added mass and compression. A particle swarm optimizer searches the constrained design space, and a general method for enforcing constraints is shown. Results indicate that complex designs offer little advantage over simple ones. Closed-form approximations across frequency ranges yield performance ceilings that can guide future coating design. View this paper
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Acoustics - ISSN 2624-599X