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Materials Science in Additive Manufacturing TPMS for perfect sound absorption
A B
C D
E F
G
H
Figure 17. Acoustic band structure of (A) GP-12 mm-Ⅰ, (B) GP-18 mm-Ⅰ, (C) GP-24 mm-Ⅰ, (D) GP-30 mm-Ⅰ, (E) GP-12 mm-Ⅱ, (F) GP-18 mm-Ⅱ,
(G) GP-24 mm-Ⅱ, and (H) GP-30 mm-Ⅱ
Abbreviation: k”: Bloch wave vector, imaginary part; GP: Graded primitive
TPMS structures, including gyroid, primitive, IWP, and linearly. Notably, the slope size order is as follows:
diamond, exhibit a linear relationship. As the thickness diamond > IWP > gyroid > primitive. This result indicates
of TPMS structures increases, their NRC also increases that the average sound absorption coefficient at a range of
Volume 4 Issue 1 (2025) 16 doi: 10.36922/msam.5737
