| 微型车表面声强特征的试验研究 |
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| 引用本文： | 陈效华,魏少华,常思勤.微型车表面声强特征的试验研究[J].南京理工大学学报(自然科学版),2006,30(2):223-226. |
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| 作者姓名： | 陈效华 魏少华 常思勤 |
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| 作者单位： | 南京理工大学,机械工程学院,江苏,南京,210094 |
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| 基金项目： | 南京理工大学校科研和教改项目 |
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| 摘 要： | 该文为整车降噪的前期工作，从分析声强测量技术的原理出发，有针对性地选择微型车表面声强的测量条件、测量方法，分析了测量过程与结果。利用声强叠加原理，合成每一测点的总声强，并通过表、图点、等声强线等方法对车身表面声强进行描述；根据测量结果，分析了引起微型车表面噪声的原因，分离出引起车外噪声的主噪声源；根据分析结果，最后提出了降低微型车车外噪声的方法和途径。
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| 关 键 词： | 微型车 声强 特征 试验 |
| 文章编号： | 1005-9830(2006)02-0223-04 |
| 收稿时间： | 2004-09-02 |
| 修稿时间： | 2006-01-21 |
Test Research on Sound Intensity Characteristic of Minibus Surface |
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| CHEN Xiao-hua,WEI Shao-hua,CHANG Si-qin.Test Research on Sound Intensity Characteristic of Minibus Surface[J].Journal of Nanjing University of Science and Technology(Nature Science),2006,30(2):223-226. |
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| Authors: | CHEN Xiao-hua WEI Shao-hua CHANG Si-qin |
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| Affiliation: | School of Mechanical Engineering, NUST, Nanjing 210094, China |
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| Abstract: | This is the prior work of the automobile noise reduction.The test principle of SI(sound intensity) technology is analyzed and the test condition and the method of the minibus surface SI are chosen.The test process and results are analyzed.By using the additive principle of SI,the whole SI of the single test point is composed.By the methods of table,figure and contour,the surface SI is expressed.According to the test results,the minibus noise cause is analysed,and the main noise sources are separated.The techniques of reducing the minibus surface noise are given. |
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| Keywords: | minibuses sound intensity characteristics tests |
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