| 柴油机声品质客观参量测试及分析 |
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| 引用本文： | 王甫江,;刘岩,;张晓娟.柴油机声品质客观参量测试及分析[J].噪声与振动控制,2014,34(4):192-196. |
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| 作者姓名： | 王甫江 ;刘岩 ;张晓娟 |
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| 作者单位： | ( 1. 大连交通大学 交通运输工程学院，辽宁 大连 116028；2. 大连科技学院 机械工程系，辽宁 大连 116052 ) |
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| 摘 要： | 在柴油机的不同速度和负荷下，进行现场噪声测试，并且分析了响度、尖锐度、粗糙度和抖动强度等4种噪声客观评价参量。经数据分析后可知，特征响度曲线能准确反映决定人耳听觉响亮程度感受变化的声音频率成分。随着发动机转速与负荷的增加，噪声的响度值和尖锐度值呈现了明显递增的趋势。同时，在900 r/min～1 700 r/min范围内，抖动度值也呈现了明显减小的趋势。
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| 关 键 词： | 声学 柴油机 噪声 声品质 客观参量 |
| 收稿时间： | 2013-09-29 |
Measurement and Analysis of Objective Parameters of Sound Quality for a Diesel Engine |
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| Affiliation: | WANG Fu-jiang,LIU Yan,ZHANG Xiao-juan ( 1. Institute of Transportation Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning China; 2. Department of Mechanical Engineering, Dalian Institute of Science and Technology, Dalian 116052, Liaoning China ) |
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| Abstract: | The noise of a diesel engine at different speed and load is measured and analyzed with the four objective evaluation parameters of noise：loudness,sharpness,roughness and fluctuation intensity.The results show that the specific loudness curve can accurately reflect the human auditory experience due to the change of sound frequency components.With the increase of the speed and the load of the engine,the loudness and sharpness increase significantly.And in the speed range of 900 r/min-1 700 r/min,the fluctuation intensity decreases significantly. |
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| Keywords: | acoustics diesel engine noise sound quality objective parameter |
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