Analysis of Low-Frequency Sound Absorption Performance and Optimization of Structural Parameters for Acoustic Metamaterials for Spatial Double Helix Resonators DOI Creative Commons
Yuanqing Luo, Changyuan Yu,

Shuang Kang

и другие.

Crystals, Год журнала: 2024, Номер 14(10), С. 887 - 887

Опубликована: Окт. 12, 2024

Low-frequency noise absorbers often require large structural dimensions, constraining their development in practical applications. In order to improve space utilization, an acoustic metamaterial with a spatial double helix, called helix resonator (SDHR), is proposed this paper. An analytical model of the double-helix established and verified by numerical simulations impedance tube experiments. By comparing absorption coefficients resonator, it shown that results model, experiments are good agreement, proving accuracy theoretical model. The effects different parameters on peak sound coefficient resonance frequency quantitatively revealed. variation law obtained, resistance reactance distributions at analyzed. optimization Back Propagation (BP) network used construct mapping between coefficient, as constraints equation, which combined Wild Horse Optimization (WHO) establish BP-WHO minimize volume resonator. show that, for given frequency, optimized enhance utilization without affecting performance

Язык: Английский

Ultra-broadband acoustic metaliner for fan noise reduction DOI
Ting Lu, Chun Liu,

Nengyin Wang

и другие.

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110173 - 110173

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Analysis of Low-Frequency Sound Absorption Performance and Optimization of Structural Parameters for Acoustic Metamaterials for Spatial Double Helix Resonators DOI Creative Commons
Yuanqing Luo, Changyuan Yu,

Shuang Kang

и другие.

Crystals, Год журнала: 2024, Номер 14(10), С. 887 - 887

Опубликована: Окт. 12, 2024

Low-frequency noise absorbers often require large structural dimensions, constraining their development in practical applications. In order to improve space utilization, an acoustic metamaterial with a spatial double helix, called helix resonator (SDHR), is proposed this paper. An analytical model of the double-helix established and verified by numerical simulations impedance tube experiments. By comparing absorption coefficients resonator, it shown that results model, experiments are good agreement, proving accuracy theoretical model. The effects different parameters on peak sound coefficient resonance frequency quantitatively revealed. variation law obtained, resistance reactance distributions at analyzed. optimization Back Propagation (BP) network used construct mapping between coefficient, as constraints equation, which combined Wild Horse Optimization (WHO) establish BP-WHO minimize volume resonator. show that, for given frequency, optimized enhance utilization without affecting performance

Язык: Английский

Процитировано

2