基于统计特征的轴流压气机喘振检测

李长征; 熊兵; 韩伟

基于统计特征的轴流压气机喘振检测

李长征^1,2,
熊兵²,
韩伟²

1.
西北工业大学动力与能源学院,西安 71007
2.
中国航空工业集团公司中国燃气涡轮研究院,江油 621703

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- 被引次数: 0
出版历程
- 收稿日期: 2009-10-23
- 修回日期: 2010-05-31
- 刊出日期: 2010-12-28

Surge detection of an axial compressor based on statistical characteristics

1.
School of Power and Energy, Northwestern Polytechnical University,Xian 71007
2.
China Gas Turbine Establishment, Aviation Industry Corporation of China,Jiangyou 621703,China

摘要

摘要: 在分析四种型号轴流压气机36组试验数据的基础上,统计发现压气机出口总压脉动的有效值服从正态分布;有效值及其标准差因机型不同而不同,并随工作转速变化而变化.设计了基于统计特征的自动门限喘振在线检测系统.通过试验验证显示,可在喘振发生时发出报警信号.该方法计算简单,具有较大的工程应用价值.
- 轴流压气机 /
- 气动稳定性 /
- 喘振 /
- 统计特征 /
- 在线检测
Abstract: By analyzing 36 groups test data of four models axial compressors, it’s found statistically that the root mean square (RMS) of pulsation of compressors outlet total pressure is subject to normal distribution;the RMS and its standard deviation vary from different models and/or working speeds.An automatic threshold surge-detecting on-line system was designed based on statistical characteristics.Experiments demonstrate that alarm signals can be given at the time of surge.This method is simple in calculation,and has great value in engineering application.
- axial compressor /
- aerodynamic stability /
- surge /

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参考文献(15)

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