| LF520车室声腔模态分析 |
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| 引用本文： | 鲍春燕,雷刚.LF520车室声腔模态分析[J].重庆工学院学报,2008,22(10). |
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| 作者姓名： | 鲍春燕 雷刚 |
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| 作者单位： | 重庆工学院重庆市车辆模拟与实验工程技术研究中心,重庆400050 |
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| 基金项目： | 重庆市重大科技攻关项目(CSTC,2007AA6009) |
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| 摘 要： | 采用Hypermesh软件建立了某车型的室内声场有限元模型，用SYSNOISE软件对该有限元模型进行自由模态分析，得到声场的各阶模态频率和振型，将声模态分析结果与汽车内外部的激励源频率特性进行对比，为改善车内声学特性，对车内噪声预测提供了参考。
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| 关 键 词： | 室内声场 有限元 声模态 |
Acoustic Mode Analysis of LF520 Cab |
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| BAO Chun-yan,LEI Gang.Acoustic Mode Analysis of LF520 Cab[J].Journal of Chongqing Institute of Technology,2008,22(10). |
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| Authors: | BAO Chun-yan LEI Gang |
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| Affiliation: | BAO Chun-yan,LEI Gang(Chongqing Research Center of Vehicle Simalation , Experimenting Engineering Technology,Chongqing Institute of Technology,Chongqing 400050,China) |
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| Abstract: | In this paper,the FEM model of interior acoustic field in a car's cab is created with Hypermesh FEM software.Different order modal frequency and modal characteristics of the acoustic field are acquired by analyzing the free modal of this FEA model with SYSNOISE software.Analysis is done to compare the results of acoustic model analysis with the excitation frequency characteristics of both inside and outside of the car,which provides the evidence for the cab noise prediction and the acoustic characteristic i... |
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| Keywords: | interior acoustic field FEM acoustic mode |
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