TPMS Resonator: 

Triply Periodic Minimal Surfaces (TPMS) have been explored as acoustic metamaterials due to their porous structures and lightweight yet superior mechanical strength. While TPMS structures have demonstrated sound absorption performance in various studies, their potential for sound insulation in building enclosure materials remains largely unexplored. This project investigates a novel approach to employing TPMS for sound insulation by designing a Helmholtz resonator based on the TPMS Primitive geometry and developing it into a sound barrier, referred to as the TPMS panel. The panel is designed to incorporate various sizes of TPMS resonators to cover the dominant noise range of urban environments, with considerations for architectural applications. Numerical simulations using COMSOL Multiphysics on 3D digital models are conducted to evaluate sound transmission loss (STL). The results demonstrate the potential of TPMS-Rs as geometrically tunable, compact acoustic structures for multifunctional building-envelope applications.