| 封闭空腔结构-声耦合场内辐射声粗糙度的研究 |
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| 引用本文： | 袁骥轩,黄其柏,王剑亮.封闭空腔结构-声耦合场内辐射声粗糙度的研究[J].噪声与振动控制,2010,30(1):59-62. |
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| 作者姓名： | 袁骥轩 黄其柏 王剑亮 |
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| 作者单位： | （华中科技大学数字制造装备与技术国家重点实验室，武汉430074） |
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| 基金项目： | 高等学校博士学科点专项科研基金 |
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| 摘 要： | 基于结构-声耦合场有限元模型以及改进后的Sethares非谐音心理声学模型,计算封闭空腔边界上声固耦合板受简谐力激励后引起的空腔内部辐射声,分析其在评价点被快速调制时产生的粗糙度,并研究调制音声压级、调制音频率以及耦合板刚度对辐射声粗糙度的影响。为计算封闭空腔内部声辐射被其它声源所快速调制时产生的声粗糙度提供依据和预测方法。
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| 关 键 词： | 声学 辐射声粗糙度 结构 声耦合场 声品质 封闭空腔 调制音 |
Study on Radiating Sound Roughness of Acoustic-Structure Coupling Field in Sealed Cavity |
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| YUAN Ji-xuan,HUANG Qi-bai,WANG Jian-liang.Study on Radiating Sound Roughness of Acoustic-Structure Coupling Field in Sealed Cavity[J].Noise and Vibration Control,2010,30(1):59-62. |
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| Authors: | YUAN Ji-xuan HUANG Qi-bai WANG Jian-liang |
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| Affiliation: | (State Key Lab of Digital Manufacturing Equipment & Technology, Huazhong University of Science & Technology, Wuhan430074, China) |
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| Abstract: | Based on the finite element model of acoustic-structure coupling field in a sealed cavity and the improved Senthares non-harmonic psychoacoustics model,the sound pressure level of the internal radiating sound due to the excitation of the harmonic force exerted on the shell of the cavity is calculated.The acoustic-structure coupling effect is considered.The sound roughness caused by the rapid modulation at the evaluation point is analyzed.Moreover,the effects of the sound pressure level of the modulated soun... |
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| Keywords: | acoustics radiating sound roughness acoustic-structure coupling field sound quality finite element method (FEM) sealed cavity modulated sound |
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