Work

The shielding effect of SH wave propagation in porous unidirectional infinite enclosed structure

Year: 2025

Type: article

Abstract: • Wave shielding effect in porous unidirectional infinite enclosed structure. • A comprehensive visualization analysis step is established at wide frequency bands. • An analytical computational software embedded with a multi-parameter is developed. • Optimal design of wave shielding structure with multi-scale parameters. The wave dynamics within the porous unidirectional infinite enclosed structure involve the coupling of multiple scattering wave fields under complex boundary conditions. With specific frequency bands and structural designs, optimal absorption and shielding effects can be achieved. Currently, there is still a lack of comprehensive theoretical models that can efficiently and accurately analyze the shielding effect. This paper develops an accurate analytical method based on the wave function expansion for analyzing wave shielding in porous structures. Based on the multi-direction cumulative mirroring method, the reflection and scattering problems of shear-horizontal wave (SH wave) propagation at structural and pore boundaries are resolved. Through comprehensive set of visualization analysis steps, the full-domain dynamic wave response is presented. This approach enables quantitative and qualitative analysis of coupled wave amplitude distribution, shielded frequency bands, and shielding coefficients under variations in frequency bands, pore numbers, inter-pore spacing, and structural dimensions. This provides a robust framework for understanding and predicting wave propagation behavior in porous media. In addition, an analytical computing software has been developed for practical engineering applications, which improves the efficiency and accuracy of shielding wave structural optimization design and provides guidance on optimizing absorption and shielding effects of porous structures in practical engineering.

Source: Materials & Design

DOI: 10.1016/j.matdes.2025.114003

Authors: Zhiyu Fan, Hui Qi, Runjie Yang, Hao Wu, Yufeng Zhang, Jing Guo

Institutions: Harbin Engineering University, Harbin Institute of Technology

Language: English

Topic: Acoustic Wave Phenomena Research

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,650

Funders: China Academy of Space Technology, National Key Research and Development Program of China