The Spectrum Characteristics of Acoustic Signal of Axial Flow Water Turbine under Different Cavitation States
Author(s): CHEN Go-dong
Pages: 1-3,17
Year: 2006 Issue: 3
Journal: FUJIAN ELECTRIC POWER AND ELECTRICAL ENGINEERING
Keyword: 水轮机; 空化; 噪声; 频谱; 白化;
Abstract: 分析了轴流式水轮机模型转轮空化试验的数据.首先确定了用可视观测来评判空化严重程度,在此基础上重点分析了超声传感器测量到的宽频信号,找出了不同工况下,空化发展变化时声信号频谱变化的规律.
Pages: 1-3,17
Year: 2006 Issue: 3
Journal: FUJIAN ELECTRIC POWER AND ELECTRICAL ENGINEERING
Keyword: 水轮机; 空化; 噪声; 频谱; 白化;
Abstract: 分析了轴流式水轮机模型转轮空化试验的数据.首先确定了用可视观测来评判空化严重程度,在此基础上重点分析了超声传感器测量到的宽频信号,找出了不同工况下,空化发展变化时声信号频谱变化的规律.
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