| 汽车燃油空气加热器噪声性能 |
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| 引用本文： | 申福林,郭金刚.汽车燃油空气加热器噪声性能[J].交通运输工程学报,2004,4(1):54-57. |
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| 作者姓名： | 申福林 郭金刚 |
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| 作者单位： | 长安大学,汽车学院,陕西,西安,710064 |
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| 摘 要： | 运用声功率测量、表面声强测量和频谱测量等方法，分析认为风扇噪声、电机噪声和燃烧噪声是加热器的主要噪声源，由此产生的噪声经方箱、回风口等向外辐射，提出了采取回风消声器消声与整机隔声罩隔声等降噪措施。试验结果表明，加热器各频带的声压级都有了一定程度的降低，特别是人耳最为敏感的1kHz处的噪声降低了4．1dB。
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| 关 键 词： | 汽车工程 燃油空气加热器 噪声控制 消声 隔声 |
| 文章编号： | 1671-1637(2004)01-0054-04 |
| 修稿时间： | 2003年3月15日 |
Noise property of vehicle fuel-fired air heater |
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| SHEN Fu-lin,GUO Jin-gang.Noise property of vehicle fuel-fired air heater[J].Journal of Traffic and Transportation Engineering,2004,4(1):54-57. |
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| Authors: | SHEN Fu-lin GUO Jin-gang |
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| Abstract: | With sound power, distribution of sound intensity and frequency spectrum, the noise property of vehicle fuel-fired air heater was analyzed. It is pointed out that fan noise, electromagnetic noise and burning noise are the main noise sources, which spread out through the air-inlet and iron box. As a settlement, the measurements silencer and rectangular enclosure are adopted. Application results show that the noise level decreases 4.1 dB in 1 kHz band. 11 figs, 9 refs. |
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| Keywords: | automobile engineering fuel-fired air heater noise control silencer sound insulation |
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