3D-Printed Lattice Structures for Sound Absorption: Current Progress, Mechanisms and Models, Structural-Property Relationships, and Future Outlook.

Autor: Li X; Faculty of Science, Agriculture, and Engineering, Newcastle University, Singapore, 567739, Singapore., Chua JW; Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore., Yu X; Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, 999077, China., Li Z; Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore.; School of Traffic & Transportation Engineering, Central South University, Changsha, 410017, P. R. China., Zhao M; Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore., Wang Z; School of Traffic & Transportation Engineering, Central South University, Changsha, 410017, P. R. China., Zhai W; Department of Mechanical Engineering, National University of Singapore, Singapore, 117575, Singapore.
Jazyk: angličtina
Zdroj: Advanced science (Weinheim, Baden-Wurttemberg, Germany) [Adv Sci (Weinh)] 2024 Jan; Vol. 11 (4), pp. e2305232. Date of Electronic Publication: 2023 Nov 23.
DOI: 10.1002/advs.202305232
Abstrakt: The reduction of noises, achieved through absorption, is of paramount importance to the well-being of both humans and machines. Lattice structures, defined as architectured porous solids arranged in repeating patterns, are emerging as advanced sound-absorbing materials. Their immense design freedom allows for customizable pore morphology and interconnectivity, enabling the design of specific absorption properties. Thus far, the sound absorption performance of various types of lattice structures are studied and they demonstrated favorable properties compared to conventional materials. Herein, this review gives a thorough overview on the current research status, and characterizations for lattice structures in terms of acoustics is proposed. Till date, there are four main sound absorption mechanisms associated with lattice structures. Despite their complexity, lattice structures can be accurately modelled using acoustical impedance models that focus on critical acoustical geometries. Four defining features: morphology, relative density, cell size, and number of cells, have significant influences on the acoustical geometries and hence sound wave dissipation within the lattice. Drawing upon their structural-property relationships, a classification of lattice structures into three distinct types in terms of acoustics is proposed. It is proposed that future attentions can be placed on new design concepts, advanced materials selections, and multifunctionalities.
(© 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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