| 节流降压-小孔喷注消声器优化设计与模态分析 |
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| 引用本文： | 胡素影,周新祥,郑文广.节流降压-小孔喷注消声器优化设计与模态分析[J].鞍山科技大学学报,2009(2):148-152. |
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| 作者姓名： | 胡素影 周新祥 郑文广 |
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| 作者单位： | 辽宁科技大学机械工程与自动化学院; |
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| 摘 要： | 对AG-35/39M1型锅炉排气放空噪声进行测量,并进行频谱分析,找出主要噪声源发生在频率为1118 Hz处。根据其频谱特性和排气放空噪声产生机理及喷注噪声具有的声级高(140 dB左右)、频率宽、传播远、影响范围大等特点,优化设计了节流降压-小孔喷注复合式消声器,并采用锤击法对消声器试件进行实验模态分析及消声特性试验,可知其频率远远避开了噪声的峰值频率,消声器不会在噪声峰值时产生共振,为设计出结构合理、性能优良的消声器提供了可靠依据。
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| 关 键 词： | 排气放空噪声 频谱分析 节流降压-小孔喷注 消声器 锤击法 实验模态分析 |
Optimization design and experimental model analysis of complex throttle injection with small apertures spray muffler |
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| HU Su-ying,ZHOU Xin-xiang,ZHENG Wen-guang.Optimization design and experimental model analysis of complex throttle injection with small apertures spray muffler[J].Journal of Anshan University of Science and Technology,2009(2):148-152. |
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| Authors: | HU Su-ying ZHOU Xin-xiang ZHENG Wen-guang |
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| Institution: | School of Mechanical Engineering and Automation;University of Science and Technology Liaoning;Anshan 114051;China |
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| Abstract: | The exhaust noise of the boiler of AG-35/39M1 was measured and the spectrum analysis was carried on,then the noise fountainhead was founded that occurs in the 1 118 Hz frequency.Base on the characteristic of the frequency spectrum of the noise signal and mechanism with the high acoustic level(140 dB),the width frequency,disseminates,and the big influence scope,the complex throttle injection with small apertures spray muffler were designed.The experimental mode analysis was carried on by hammerhead excitatio... |
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| Keywords: | exhaust noise spectrum analysis complex throttle injection with small apertures spray muffler hammerhead excitation experimental model analysis |
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