Acoustic metamaterials present as promising solutions for many industry applications, but the gap between theory and practice is still difficult to close.   

The main objective of this research is to present an optimization process for the design of acoustic metamaterials that can be implemented by the industry. The goal is to provide a tool and procedure that allows to effectively and efficiently solve the problems that the industry requires. A methodology is proposed for the design of acoustic metamaterials that takes advantage of the theory and analytical models, in addition to the numerical modeling and optimization techniques. It can be applied and adapted for different problems. This is exemplified with two test cases for sound insulation, one concerning the sound transmission loss (STL) of a single gypsum board panel and other the noise reduction of outdoor HVAC units. A resonator design used for sound radiation in flat panel speakers is optimized for each of the cases, combining numerical and analytical models. This shows how an existing resonator design can be adapted for new purposes. Manufacturability is considered in the optimized deigns.