| 基于声固耦合模型的车内低频结构噪声响应分析 |
| |
| 引用本文： | 马天飞,高刚,王登峰,潘峰. 基于声固耦合模型的车内低频结构噪声响应分析[J]. 机械工程学报, 2011, 47(15). DOI: 10.3901/JME.2011.15.076 |
| |
| 作者姓名： | 马天飞 高刚 王登峰 潘峰 |
| |
| 作者单位： | 吉林大学汽车仿真与控制国家重点实验室 长春 130022 |
| |
| 基金项目： | 国家高技术研究发展计划资助项目(863计划,2006AA110104) |
| |
| 摘 要： | 根据模态相似原则建立某重型商用车简化的驾驶室有限元模型。在此基础之上建立驾驶室的声固耦合模型,并利用声学模态试验验证了模型的正确性。通过实车道路试验测量怠速工况和匀速行驶工况下驾驶室悬置点的激励信号和车内振动噪声响应信号。将测量的激励信号施加于声固耦合模型进行频率响应分析,计算20～200 Hz范围的车内结构噪声。将得到的振动噪声响应仿真结果与试验结果进行对比分析。分析表明,仿真响应频谱能够反映出激励谱和模态的影响,与试验结果相符。利用此模型预测车内振动噪声水平,也具有较高精度。
|
| 关 键 词： | 声固耦合 结构噪声 响应分析 频谱 车内噪声 声学模态 |
Response Analysis of Interior Structure Noise in Lower Frequency Based on Structure-acoustic Coupling Model |
| |
| MA Tianfei,GAO Gang,WANG Dengfeng,PAN Feng. Response Analysis of Interior Structure Noise in Lower Frequency Based on Structure-acoustic Coupling Model[J]. Chinese Journal of Mechanical Engineering, 2011, 47(15). DOI: 10.3901/JME.2011.15.076 |
| |
| Authors: | MA Tianfei GAO Gang WANG Dengfeng PAN Feng |
| |
| Affiliation: | MA Tianfei GAO Gang WANG Dengfeng PAN Feng(State Key Laboratory of Automobile Simulation and Control,Jilin University,Changchun 130022) |
| |
| Abstract: | Based on the principle of bearing similar modes with vehicle,the simplified FE model of a heavy commercial vehicle cab is built.A structure-acoustic coupling model of the cab is built with the FE model,and it is validated with an acoustic modal test.The excitation signals at cab mounting and the respond signals of interior noise and vibration are measured under idling condition and even-speed driving condition with road testing.Appling the excitation signals to the structure-acoustic coupling model,the freq... |
| |
| Keywords: | Structure-acoustic coupling Structure noise Response analysis Frequency spectrum Interior noise Acoustic mode |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
