[1]冯中营1,2,吴胜举2.簧片哨噪声功率谱密度分析[J].武汉工程大学学报,2014,(12):72-74.[doi:10. 3969/j. issn. 1674-2869. 2014. 012. 014]
,Spectral noise power density of reed whistle[J].Journal of Wuhan Institute of Technology,2014,(12):72-74.[doi:10. 3969/j. issn. 1674-2869. 2014. 012. 014]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]
- 卷:
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- 期数:
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2014年12期
- 页码:
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72-74
- 栏目:
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机电与信息工程
- 出版日期:
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2014-12-31
文章信息/Info
- Title:
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Spectral noise power density of reed whistle
- 文章编号:
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1674 - 2869(2014)012 - 0072 - 03
- 作者:
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冯中营1; 2; 吴胜举2
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1.太原工业学院理学系,山西 太原 030008;2.陕西师范大学应用声学研究所,陕西 西安 710062
- Author(s):
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FENG Zhong-ying1; 2; WU Sheng-ju2
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1. Department of Science, Taiyuan Institute of Technology, Taiyuan 030008, China;2. Institute of Applied Acoustics, Shanxi Normal University, Xi’an 710062, China
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- 关键词:
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空化; 簧片哨; 功率谱密度
- Keywords:
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cavitation; reed whistle; spectral power density
- 分类号:
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O426
- DOI:
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10. 3969/j. issn. 1674-2869. 2014. 012. 014
- 文献标志码:
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A
- 摘要:
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针对簧片哨空化噪声的问题,首先通过ANSYS模拟簧片哨的振动,研究簧片哨的振动频率;然后通过水听器测量方法采集簧片哨的空化噪声数据,并利用ORIGIN软件分析噪声谱,最后分析模拟结果与噪声谱的关系.结果表明,簧片哨模拟振动频率与实际测得的频率基本相符;在不同水压条件下,簧片哨的噪声谱基本一致,测得的基频为0.8 kHz,泛频为1.6 kHz、2.4 kHz、3.2 kHz、4.0 kHz、4.8 kHz等;簧片哨的噪声谱具有明显的线状谱特点,但噪声谱的频率为可听声频率范围而不是超声频率范围.簧片哨的线状空化噪声谱特点有利于加强空化效果.
- Abstract:
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Aimed at the cavitation noise spectrum of reed whistle, firstly, the vibration of reed whistles was simulated by ANSYS, and the vibration frequency of reed whistles was analyzed. Then the cavitation noise spectrum of reed whistle acquired by hydrophone measurements was explored using ORIGIN software. Finally the relationship between simulation values and noise spectrum was studied. The results show that the simulated vibration frequency of reed whistle coincides with the actual measured frequency; the reed whistle noise spectra are basically the same in different water pressure conditions; the radical frequency measured is 0.8 kHz and overtone is 1.6 kHz,2.4 kHz,3.2 kHz,4.0 kHz,4.8 kHz, and so on; the noise spectrum of reed whistle shows linear characteristics, but the noise is found in audible frequency range rather than in ultrasonic frequency range. The linear characteristics of cavitation noise spectrum of reed whistle are beneficial to enhance cavitation effect.
参考文献/References:
[1] TESTUD P, MOUSSOU P, HIRSCHBERG A ,et al. Noise generated by cavitating single-hole and multi-hole orifices in a water pipe[J]. Journal of Fluids and Structures, 2007, 23(2): 163-189.[2] MOHOLKAR V S, SABLE S P, PANDIT A B. Mapping the cavitation intensity in an ultrasonic bath using the acoustic emission[J]. AIChE Journal, 2000, 46 (4): 684-693.[3] 秦平力, 李端勇, 张昱. 利用Origin7.0软件处理超声波声速实验数据[J].武汉工程大学学报,2009,29 (9):69-71.QIN Ping-li,LI Duan-yong,ZHANG Yu.Application Origin 7.0 software to experimental data of the sound velocity of ultrasonic[J].Journal of Wuhan Institute of Technology,2009,29(9):69-71.(in Chinese)[4] 冯中营. 穿孔板噪声谱分析研究[J]. 武汉工程大学学报,2010,30(3):110-111.FENG Zhong-ying. The analysis research on the noise spectrum of perforation plate[J]. Journal of Wuhan Institute of Technology,2010,30(3):110-111. (in Chinese)
备注/Memo
- 备注/Memo:
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收稿日期:2014-09-29基金项目:国家自然科学基金资助项目(10474061,10074042)作者简介:冯中营(1981-),男,山东临沂人,硕士. 研究方向:声学.
更新日期/Last Update:
2015-01-27