| Identification of Minibus's Surface Noise Source |
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| 作者姓名： | LUO Hong SUN Yi-yong HU Jia-qiang |
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| 作者单位： | State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030 ,China |
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| 摘 要： | With the study of minbus's accelerated exterior noise control,the principle of sound intensity measurement was applied,the sound intensity of a minbus's surface noise was tested,and the surface noise distribution was presented.Several identification of noise source methods including sound power,sound intensity contour map,frequency spectrum were used together for surface noise analysis and study.Engine radiation noise and exhaust noise was identified as the major noise sources.On the contrary,car body vibration noise,tyre noise,transmission agent noise,air admission noise just occupied a little proportion of surface sound radiation energy.The research provides the reliable basis to determine main projects of minibus's accelerated exterior noise control.
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| 关 键 词： | sound intensity measurement frequency spectrum identification of noise source major noise source |
| 收稿时间： | 2006/4/30 0:00:00 |
| 修稿时间： | 2006/4/30 0:00:00 |
Identification of Minibus's Surface Noise Source |
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| LUO Hong,SUN Yi-yong,HU Jia-qiang.Identification of Minibus''s Surface Noise Source[J].Storage & Process,2006(11):6-9. |
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| Authors: | LUO Hong SUN Yi-yong HU Jia-qiang |
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| Institution: | State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030 ,China |
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| Abstract: | With the study of minbus's accelerated exterior noise control,the principle of sound intensity measurement was applied,the sound intensity of a minbus's surface noise was tested,and the surface noise distribution was presented.Several identification of noise source methods including sound power,sound intensity contour map,frequency spectrum were used together for surface noise analysis and study.Engine radiation noise and exhaust noise was identified as the major noise sources.On the contrary,car body vibration noise,tyre noise,transmission agent noise,air admission noise just occupied a little proportion of surface sound radiation energy.The research provides the reliable basis to determine main projects of minibus's accelerated exterior noise control. |
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| Keywords: | sound intensity measurement frequency spectrum identification of noise source major noise source |
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