| 车身板件对车内噪声的贡献量分析 |
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| 引用本文： | 刘东明,方健,赵敬义,卢玉东. 车身板件对车内噪声的贡献量分析[J]. 噪声与振动控制, 2011, 31(2): 48-51. DOI: 10.3969/j.issn.1006-1355-2011.02.012 |
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| 作者姓名： | 刘东明 方健 赵敬义 卢玉东 |
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| 作者单位： | （ 泛亚汽车技术中心有限公司， 上海 201201 ） |
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| 摘 要： | 讨论车身板件对车内空腔辐射噪声的贡献量分析.通过对声源强度和声学传递函数的乘积求和来进行某块板在目标位置声压贡献量的合成.利用互异法间接测量声学传递函数,通过截面面积和其法向加速度的乘积得到声源强度值.模拟计算前面试验边界条件建立的有限元模型,有限元计算结果和实测数据进行对比.
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| 关 键 词： | 声学 车内噪声 板贡献量 声源强度 声学传递函数 |
| 收稿时间： | 2010-05-11 |
| 修稿时间： | 2010-07-26 |
Analysis of Panel Contribution to Vehicle Interior Noise |
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| LIU Dong-ming,FANG Jian,ZHAO Jing-yi,LU Yu-dong. Analysis of Panel Contribution to Vehicle Interior Noise[J]. Noise and Vibration Control, 2011, 31(2): 48-51. DOI: 10.3969/j.issn.1006-1355-2011.02.012 |
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| Authors: | LIU Dong-ming FANG Jian ZHAO Jing-yi LU Yu-dong |
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| Affiliation: | ( Pan Asia Technical Automotive Center Co.Ltd., Shanghai 201021， China ) |
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| Abstract: | This article discusses the method to analyze the acoustic contribution of body's panels to vehicle's interior noise.In the experiment,the vector sum of the product of sound-source intensity and acoustic transfer function is used to compose the sound pressure contribution of the panels.The source intensity of a panel is derived from the product of normal velocity of the surface and its area.Acoustic transfer function is measured via reciprocity principle.FEA calculation is done based on a model with the boun... |
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| Keywords: | acoustics vehicle interior noise bodys panel contribution acoustic source intensity acoustic transfer function |
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