| 叶轮机械叶片故障的叶间动态压力诊断法 |
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| 引用本文： | 孙红岩,谢志江,陈平. 叶轮机械叶片故障的叶间动态压力诊断法[J]. 动力工程, 2005, 25(4): 563-566 |
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| 作者姓名： | 孙红岩 谢志江 陈平 |
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| 作者单位： | 重庆大学,机械传动国家重点实验室,重庆,400044 |
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| 摘 要： | 叶间动态压力诊断法是叶轮机械叶片故障诊断的一种新方法。该方法采用安装在外壳上的动态压力传感器非接触测量旋转叶片间流体的动态压力信号,通过分析该信号的时域波形、频谱和对数差谱,可获取叶片故障信息。实验证明该诊断方法是正确的、有效的。图10参12。
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| 关 键 词： | 动力机械工程 叶轮机械 故障诊断 叶间动态压力 非接触测量 |
| 文章编号： | 1000-6761（2005）04-0563-04 |
| 收稿时间： | 2005-01-24 |
| 修稿时间： | 2005-01-24 |
Diagnosing Blade Faults in Turbo Machinery by Probing the Fluid''''s Dynamic Pressure in the Blade Path |
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| SUN Hong-yan,XIE Zhi-jiang,CHEN Ping. Diagnosing Blade Faults in Turbo Machinery by Probing the Fluid''''s Dynamic Pressure in the Blade Path[J]. Power Engineering, 2005, 25(4): 563-566 |
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| Authors: | SUN Hong-yan XIE Zhi-jiang CHEN Ping |
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| Abstract: | Blade path dynamic pressure diagnosis is a new non-contacting way of diagnosing blade faults in turbo machineries. With this method, the dynamic pressure signal of the fluid in the blade path is being measured by a dynamic pressure sensor fixed on the casing wall. Blade fault informations can be obtained by analyzing the pressure signal's wave shape in the time realm, its frequency spectrum and its logarithm difference spectrum. Experiments have verified that this method is accurate and effective. Figs 10 and refs 12. |
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| Keywords: | power and mechanical engineering turbo machinery fault diagnosis blade path dynamic pressure non-contact measurement |
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