Broadband Low-Frequency Sound Absorption Based on a Bundled Embedded Neck Helmholtz Resonator
Proposed New Structure: Based on the traditional Helmholtz resonator (HR), the neck channel is divided into multiple parallel small tubes (bundles), without changing the original air volume. This structure enhances thermal viscous loss, improving low-frequency sound absorption performance. Theoretical Modeling and Validation: A theoretical model was established and verified for accuracy through finite element simulation … Read more