| 某SUV车身结构声学研究 |
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| 引用本文： | 吴哲,龚国庆,何强,孟静.某SUV车身结构声学研究[J].北京机械工业学院学报,2014(3):92-96. |
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| 作者姓名： | 吴哲 龚国庆 何强 孟静 |
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| 作者单位： | 北京信息科技大学机电工程学院; |
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| 摘 要： | 采用Hypermesh软件建立了某SUV车内声腔有限元模型,通过Virtual.lab软件对该模型进行了自由模态分析计算;利用Virtual.lab对车身结构进行频响分析,并利用计算结果对车内噪声水平进行了计算,对选定板件对车内噪声水平贡献量进行分析,并根据分析结果提出了简单的降噪方案。
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| 关 键 词： | 声腔模态 频率响应 噪声 板件贡献量 |
Theacoustics research of a SUV body structure |
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| WU Zhe,GONG Guo-qing,HE Qiang,MENG Jing.Theacoustics research of a SUV body structure[J].Journal of Beijing Institute of Machinery,2014(3):92-96. |
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| Authors: | WU Zhe GONG Guo-qing HE Qiang MENG Jing |
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| Affiliation: | (School of Electromechanical Engineering, Beijing Information Science and Technology University, Beijing 100192, China) |
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| Abstract: | The finite element model of a SUV cavity is established with software Hypermesh. By using Virtual. lab, the free modal analysis of this FEA model is made and the car body structure frequency response is analyzed. Then the noise level of the car is calculated and the contribution of selected panel to the noise is analyzed, based on which the program of noise reduction is proposed. |
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| Keywords: | cavity modal frequency response noise panel distribution |
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