| 确定模型水泵水轮机水泵工况叶片初生空化的声学方法研究 |
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| 引用本文： | 赵越,刘智良,郭全宝.确定模型水泵水轮机水泵工况叶片初生空化的声学方法研究[J].大电机技术,2011(1):39-45. |
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| 作者姓名： | 赵越 刘智良 郭全宝 |
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| 作者单位： | 国家水力发电设备工程技术研究中心;水力发电设备国家重点实验室;哈尔滨大电机研究所; |
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| 基金项目： | 国家973计划项目(2011BAF03B00) |
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| 摘 要： | 目前,模型水泵水轮机水泵工况下转轮叶片压力面的初生空化的判断,还停留在人工甄别的阶段,导致判断结果因人而异.本文提出一种声学方法来判断水泵工况下模型水泵水轮机转轮叶片初生空化的发生.利用基于水听器的测试系统,提取并分析空化噪声的特征量来判断初生空化何时发生.通过实验验证了该方法的合理性和准确性,因此,该方法对模型水泵水...
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| 关 键 词： | 初生空化 水泵水轮机 声学 水听器 |
A Acoustics Method of Judging Inception Cavitation on Runner Blade of Model Pump Turbine at Pump Condition |
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| ZHAO Yue,LIU Zhi-liang,GUO Quan-bao.A Acoustics Method of Judging Inception Cavitation on Runner Blade of Model Pump Turbine at Pump Condition[J].Large Electric Machine and Hydraulic Turbine,2011(1):39-45. |
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| Authors: | ZHAO Yue LIU Zhi-liang GUO Quan-bao |
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| Affiliation: | ZHAO Yue1,2,3,LIU Zhi-liang3,GUO Quan-bao3(1.National Engineering Research Center of Hydro-power Equipment,Harbin 150040,China,2.State Key Laboratory of Hydro-power Equipment,3.Harbin Institute of Large Electrical Machinery,China) |
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| Abstract: | For model pump turbine which operates on pump condition,to judge inception cavitation of runner blade which occurs on the pressure side still depends on the artificial way,hence resulting in the conclusion differs according to observers.An acoustics method is employed to judge when inception cavitations occurs.By abstracting and analyzing characteristic parameters of cavitation noise with test system based on hydrophone,inception cavitation can be confirmed.The rationality and accuracy of this method have b... |
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| Keywords: | inception cavitation pump turbine acoustics hydrophone |
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