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[1]冯中营.穿孔板噪声谱分析研究[J].武汉工程大学学报,2010,(03):107-110.
　FENG Zhong ying.Analysis research on the noise spectrum of perforation plate[J].Journal of Wuhan Institute of Technology,2010,(03):107-110.
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穿孔板噪声谱分析研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2010年03期
页码:
107-110
栏目:
机电与信息工程
出版日期:
2010-03-31

文章信息/Info

Title:
Analysis research on the noise spectrum of perforation plate
文章编号:
16742869(2010)03010704
作者:
冯中营1; 2
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):
FENG Zhongying1; 2
1. Department of Science,Taiyuan Institute of Technology, Taiyuan 030008, China；
2. Institute of Applied Acoustics, Shaanxi Normal University, Xi’an 710062, China
关键词:
水力空化; 穿孔板; 噪声谱
Keywords:
hydrodynamic cavitation;  perforation plate;  noise spectrum
分类号:
O426
DOI:
-
文献标志码:
A
摘要:
水力空化与超声空化是产生空化的两种主要方法，国内外研究者对超声空化的噪声谱研究的非常多.但对于水力空化，一般仅进行应用方面的实验研究，而疏于声学方面的研究.为进一步了解水力空化的声学特性，本文理论上进行板的振动的计算，并用ANSYS模拟穿孔板的振动，研究其振动频率与测得的空化噪声谱之间的联系.研究结果表明，在特定的条件下，测得的噪声谱呈现明显线状谱分布的超声成分，此时高速水流冲击穿孔板引起了穿孔板的强烈振动，发出超声，但在一般情况下，多孔板水力空化噪声谱并不含超声成分，也不具有明显线状谱特性.
关键词：水力空化；穿孔板；噪声谱
Abstract:
The two main methods to cause cavitation are the hydrodynamic cavitation method and the supersonic cavitation method. The noise spectrum caused by supersonic cavitation is widely studied by domestic and foreign researchers. But regarding the hydrodynamic cavitation, only the experimental study on application is studied generally, and the acoustics research is very limited. To further understand the acoustics characteristic of hydrodynamic cavitation, the theory computation and the ANSYS simulation of the vibration of the perforation plate have been performed to study the relation of the vibration frequency and the cavitation noise spectrum obtained. The conclusion is that under the specific condition, the noise spectrum obtained presents the obvious line spectrum distribution and has ultrasonic ingredient. In that situation, the highvelocity flow impacted perforation plate and caused the perforation plate to vibrate intensely and to send out ultrasonic. But in ordinary circumstances, cavitation noise spectrum caused by perforation plate includes no supersonic ingredient, also does not have the obvious line spectrum characteristic.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20091231基金项目：太原工业学院青年科学基金资助项目（2009080402）.作者简介：冯中营（1981），男，山东临沂人，硕士，助教.研究方向：声学.
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