| 开敞式水泵吸水池内部流动的信号测量与分析 | |
| 李永 ; KANTE Mansa ; 吴玉林 ; 刘树红 ; LI Yong ; KANTE Mansa ; WU Yulin ; LIU Shuhong | |
| 2010-06-08 ; 2010-06-08 | |
| 关键词 | 水泵 吸水池 小波互相关 主导相关尺度 非定常信号 pump sump wavelet cross-correlation dominant correlation scales unsteady signals TB126 |
| 其他题名 | Signal measurement and analysis of the flow in an open pump sump |
| 中文摘要 | 为了研究水泵吸水池内部漩涡流动的非定常特性,测量了该流动的压力信号和振动信号,并用小波互相关分析的方法对所测信号进行处理。使用该方法,可以得到任意两种信号在不同尺度下的相互关系,并且通过与传统互相关分析方法的对比,得到了两种信号的主导相关尺度。分析结果表明,水泵吸水池内部流动所引起的压力和振动变化关系密切,都是由吸入涡的非定常特性引起的。; The pressures and vibrations of the flow in a pump sump were measured to analyze the unsteady characteristics of the flow. Wavelet cross-correlation was used to process the signals. The two unsteady signals were related at different scales using the wavelet cross-correlation analysis. The dominant correlation scales were obtained by comparing the wavelet cross-correlation results with conventional cross-correlation results. The results show that the pressure signal changes are closely related to the vibrations, both of which are caused by the unsteady characteristics of the vortex flow.; 国家自然科学基金资助项目(50176022) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/50796]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 李永,KANTE Mansa,吴玉林,等. 开敞式水泵吸水池内部流动的信号测量与分析[J],2010, 2010. |
| APA | 李永.,KANTE Mansa.,吴玉林.,刘树红.,LI Yong.,...&LIU Shuhong.(2010).开敞式水泵吸水池内部流动的信号测量与分析.. |
| MLA | 李永,et al."开敞式水泵吸水池内部流动的信号测量与分析".(2010). |
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