What question did this study set out to answer?

The aim is to enhance the sound absorption performance of Triply Periodic Minimal Surface (TPMS) structures using porous fillings.

Experimental Study on Sound Absorption of Triply Periodic Minimal Surface With Porous Fillings

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Experimental study demonstrates improved sound absorption in porous-filled TPMS structures, suggesting innovative design approaches.

The aim is to enhance the sound absorption performance of Triply Periodic Minimal Surface (TPMS) structures using porous fillings.
TPMS frameworks were fabricated via 3D printing.
Fine-pore foams and aerogel particles were used to fill the TPMS structures to create composite materials.
A pressure-assisted seepage process facilitated uniform particle distribution in the TPMS structure.
Sound absorption performance of TPMS-foam and TPMS-aerogel composite structures improved across a wide frequency range.
Composite structures exhibited significant enhancements compared to single TPMS structures.

Xu et al. (2026) studied this question.

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