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论文:2013,Vol:31,Issue(3):386-391 |
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引用本文： |
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马玺越, 陈克安, 丁少虎. 基于平面声源的三层有源隔声结构次级源最优布放[J]. 西北工业大学 |
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Ma Xiyue, Chen Ke'an, Ding Shaohu. Optimizing Location of Secondary Planar Sound Source of Active Three-Panel Sound Insulation Structure[J]. Northwestern polytechnical university |
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| 基于平面声源的三层有源隔声结构次级源最优布放 |
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| 马玺越, 陈克安, 丁少虎 |
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| 西北工业大学 航海学院, 陕西 西安 710072 |
| 摘要: |
| 三层有源隔声结构中次级平面声源的布放影响系统的隔声性能,平面声源位置的优化需重点研究。应用遗传算法在宽频带内对三层结构中平面声源的位置进行优化设计。首先对三层板腔结构建模并求解振动响应,然后分别以被动隔声、有源降噪及系统总隔声性能为依据,构建宽频带优化函数;最后通过迭代计算获得最优的布放位置。结果表明,对于被动隔声最优的平面声源布放位置应位于双层结构的中间;而对有源降噪,次级声源应尽量靠近入射板布放。对于系统总的隔声性能,最优的布放位置应在上述两者之间取折中。 |
| 关键词:
三层有源隔声结构
平面声源
最优布放
遗传算法
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| Optimizing Location of Secondary Planar Sound Source of Active Three-Panel Sound Insulation Structure |
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| Ma Xiyue, Chen Ke'an, Ding Shaohu |
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| College of Marine Engineering,Northwestern Polytechnical University,Xi'an 710072,China |
| Abstract: |
| The location of the secondary planar source of an active three-panel sound insulation structure affects its sound insulation performance.We use the genetic algorithm to optimize the location of the secondary planar sound source in a wide frequency band.First, we establish the model of the three-panel sound insulation structure by u-sing the vibro-acoustic coupling method and solve its vibration response.Second, based on the passive sound insu-lation, active noise reduction and total sound insulation performance of the sound insulation structure, we establish the wide frequency band optimization function.Finally, we obtain the optimal locations of the secondary planar sound source with the iterative calculation of the genetic algorithm.The simulation results, given in Figs.2 through 9, and their analysis show preliminarily that: (1) for the best passive sound insulation performance, the optimal location of the secondary planar sound source should lie in the middle of the double-panel sound insulation struc-ture; (2) for the active noise reduction, the secondary planar sound source should be located as close to the inci-dent panel as possible; (3) for the total sound insulation performance that considers both active and passive sound insulation performance, the optimal location should be a compromise between the abovementioned two optimal loca-tions. |
| Key words:
acoustics
frequency bands
functions
genetic algorithms
iterative methods
location
mathematical models
MATLAB
optimization
sound insulation
active sound insulation
optimal location
passive sound insulation
secondary planar sound source
total sound insulation
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| 收稿日期: 2012-06-12
修回日期:
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| DOI: |
| 基金项目: 高等学校博士学科点专项科研基金(20096102110007);航空科学基金(2011ZA53004);西北工业大学博士论文创新基金(CX201004)资助 |
| 通讯作者:
Email： |
| 作者简介: 马玺越(1984-),西北工业大学博士研究生,主要从事噪声与振动主动控制研究。
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