发明名称 |
Method for the early detection of aerodynamic instabilities in a turbomachine compressor |
摘要 |
<p>A method for the early detection of aerodynamic instability in a turbomachine compressor is described which involves collecting and normalizing signals from sensors distributed uniformly around the circumference of the compressor and detecting events for which the normalized signals do not pass through a zero value during a length of time Tz which is at least greater than the time taken for two successive moving blades to travel past the sensor. A decision regarding the imminence of aerodynamic instability is then taken after the detected events have been analyzed and decision criteria have been applied. The decision criteria may be based on the event detection rate and/or on the spatio-temporal position of the events detected across all the sensors.</p> |
申请公布号 |
EP1138952(B1) |
申请公布日期 |
2006.11.02 |
申请号 |
EP20010400247 |
申请日期 |
2001.02.01 |
申请人 |
SNECMA |
发明人 |
ESCURET, JEAN-FRANCOIS;LECONTE, THIERRY;PREVITALI, ROMUALD |
分类号 |
F04D27/00;F04D27/02;F01D17/08 |
主分类号 |
F04D27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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