Multifunctional hybrid plate lattice structure with high energy absorption and excellent sound absorption

Lingbo Li; Fan Yang; Yabin Jin; Pengfei Li; Siyuan Zhang; Kun Xue; Guoxing Lu; Hualin Fan

Materials & Design (May 2024)

Multifunctional hybrid plate lattice structure with high energy absorption and excellent sound absorption

Lingbo Li,
Fan Yang,
Yabin Jin,
Pengfei Li,
Siyuan Zhang,
Kun Xue,
Guoxing Lu,
Hualin Fan

Affiliations

Lingbo Li: School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China
Fan Yang: School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China; Key Laboratory of AI-aided Airworthiness of Civil Aircraft Structures, Civil Aviation Administration of China, Tongji University, Shanghai, 200092, China; State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, 116024, China; Corresponding authors.
Yabin Jin: School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China; Key Laboratory of AI-aided Airworthiness of Civil Aircraft Structures, Civil Aviation Administration of China, Tongji University, Shanghai, 200092, China; State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, 116024, China; Shanghai Key Laboratory of Intelligent Sensing and Detection Technology, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China; Shanghai Electro-Mechanical Engineering Institute, Shanghai, 201109, China; State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China; School of Engineering, Swinburne University of Technology, Hawthorn, Vic 3122, Australia; Research Center of Lightweight Structures and Intelligent Manufacturing, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Pengfei Li: School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China
Siyuan Zhang: Shanghai Electro-Mechanical Engineering Institute, Shanghai, 201109, China
Kun Xue: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China
Guoxing Lu: School of Engineering, Swinburne University of Technology, Hawthorn, Vic 3122, Australia; Corresponding authors.
Hualin Fan: Research Center of Lightweight Structures and Intelligent Manufacturing, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; Corresponding authors.

Journal volume & issue: Vol. 241
p. 112946

Abstract

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Lattice structures are featured by their extraordinary mechanical performances in specific stiffness, specific strength, energy absorption, and sound absorption, etc. The recent trend of multifunctionality in engineering applications has raised new requirements for the integration of their mechanical and acoustic properties. In this paper, a multifunctional hybrid plate lattice structure denoted as SBHP is proposed by hybridizing the traditional body-centered cubic plate (BCCP) and simple cubic plate (SCP) lattice structures, and its acoustic and energy absorption properties are investigated by theoretical modeling, simulation analysis and experimental verification. The effects of hole diameters and plate thicknesses on the sound absorption performance are investigated by impedance matching and system damping state analysis. The results show that the average sound absorption coefficient of SBHP-1 is increased by 24% and 62%, and the normalized half-absorption bandwidth is enlarged by 45% and 89% than those of BCCP and SCP, respectively. Heterogeneous lattice structures constructed by using the synergistic mechanism of strong and weak coupling have a more outstanding broadband sound absorption effect. This work provides an effective approach for the design of multifunctional lightweight structures with excellent broadband sound absorption and high energy absorption.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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