| 李琦,吴锦武,琚欣,陈明浩.内置亥姆霍兹谐振器阵列的蜂窝微穿孔吸声体设计及性能分析[J].声学技术,2024,43(4):527~535 |
| 内置亥姆霍兹谐振器阵列的蜂窝微穿孔吸声体设计及性能分析 |
| Design and performance analysis of the honeycomb microperforated sound absorber with built-in Helmholtz resonator array |
| 投稿时间：2023-10-07 修订日期：2023-11-15 |
| DOI：10.16300/j.cnki.1000-3630.2024.04.011 |
| 中文关键词: 亥姆霍兹(Helmholtz)谐振器 蜂窝结构 低频宽带 微穿孔板 粒子群优化(PSO)算法 |
| 英文关键词: Helmholtz resonator honeycomb structure low frequency broadband micro-perforated plate paticle swarm optimization(PSO) algorithm |
| 基金项目:国家自然科学基金(51965041)、南昌航空大学研究生创新专项资金项目(YC2023-028)。 |
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| 中文摘要: |
| 蜂窝微穿孔结构广泛用于吸声降噪领域，因此必须有良好的宽频带吸声降噪的性能使用要求。为弥补单层微穿孔板结构低频吸声性能的不足，实现中低频宽带降噪，文章在传统的单层微穿孔板结构单元基础上引入了亥姆霍兹谐振器(Helmholtz Resonator, HR)阵列的支撑结构，并基于粒子群优化(Particle Swarm Optimization, PSO)算法对设计的吸声体结构进行吸声性能优化。通过数值分析、有限元仿真和实验测试验证了内置HR阵列的蜂窝微穿孔吸声体的宽频带吸声特性。分析结果表明，内置HR阵列的蜂窝微穿孔吸声体经过优化设计在中低频吸声性能良好，在200~400 Hz频率范围内吸声性能明显改善，在0~1000 Hz频率范围内超过65%吸声效率的带宽占比达到70%以上。 |
| 英文摘要: |
| Honeycomb micro-perforation structure has been widely used in the field of sound absorption and noise reduction, and so it must have good wideband sound absorption and noise reduction performances. In order to make up for the deficiency of low-frequency sound absorption performance of the single-layer micro-perforated plate structure and realize the wideband noise reduction in the middle and low frequency range, a support structure of Helmholtz resonator (HR) array is introduced on the basis of the traditional single-layer micro-perforated plate structure unit and the particle swarm optimization (PSO) algorithm is used to optimize the sound absorption performance of the designed structure in this paper. By numerical analysis, finite element simulation and experimental test, the wideband sound absorption characteristics of the honeycomb micro-perforated sound absorber with built-in HR array are verified. The results show that the optimized design of the honeycomb micro-perforated sound absorber with built-in HR array has good sound absorption performance in the middle and low frequency range, especially at 200-400 Hz, and the bandwidth ratio with sound absorption efficiency exceeding 65% reaches more than 70% at 0-1000 Hz. |
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