Design and demonstration of an acoustic right-angle bend

TL;DR

This paper presents the design, fabrication, and experimental validation of a broadband acoustic right-angle bend device in air, demonstrating effective sound beam redirection over a wide frequency range for potential applications in sound absorption and detection.

Contribution

The paper introduces a novel broadband acoustic right-angle bend using perforated panels, validated through simulations and experiments, advancing acoustic device design.

Findings

Effective beam rotation across a wide frequency range

Successful fabrication and experimental validation

Potential applications in pipeline sound management

Abstract

In this paper, we design, fabricate and experimentally characterize a broadband acoustic right-angle bend device in air. Perforated panels with various hole-sizes are used to construct the bend structure. Both the simulated and the experimental results verify that acoustic beam can be rotated effectively through the acoustic bend in a wide frequency range. This model may have potential applications in some areas such as sound absorption and acoustic detection in pipeline.