Work

Suppressing multiband Lamb wave propagation using surface-mounted curved elastic metasurfaces

Year: 2025

Type: article

Abstract: Vibration control in engineering structures is a critical and common challenge. Acoustic metasurfaces offer a novel approach for vibration control by manipulating acoustic wave propagation. However, conventional designs for controlling wave propagation often require material removal, such as holes or slots, which compromise structural integrity and complicate fabrication. This study introduces a surface-mounted curved elastic metasurface that effectively suppresses Lamb wave propagation without modifying the base material, thereby preserving its mechanical strength. By modulating the transmission path and adjusting the phase of Lamb wave transmission, this design achieves significant vibration amplitude reduction through destructive interferences. Structural dimension optimization enhances wave suppression across thin plates and curved beams, providing broadband suppression across multiple frequency bands. This metasurface design holds broad potential for wave manipulation and advanced acoustic device development.

Source: Journal of Applied Physics

DOI: 10.1063/5.0266205

Authors: Shuzhen Huang, Lei Zhang, Guilin Wen, Zi Wen Tham, Shan Yin

Institutions: Hunan University, Agency for Science, Technology and Research, Institute of Materials Research and Engineering, Yanshan University

Language: English

Topic: Acoustic Wave Phenomena Research

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,500

Funders: National Natural Science Foundation of China, China Scholarship Council