发明名称 |
METHOD OF DIAGNOSING INPUT DEVICE OF AIRCRAFT PROPULSION UNIT |
摘要 |
FIELD: physics.SUBSTANCE: method involves detecting physical parameters using sensors, converting data to wavelet coefficients and subsequent analysis. Pressure fluctuation is measured by sensors mounted behind the input device at the engine input; measurement results are used to calculate wavelet coefficients of different levels and standard deviation of the wavelet coefficients; the obtained standard deviation values are compared with maximum values obtained during preflight tests; an approaching surge is indicated by standard deviation reaching maximum values.EFFECT: invention increases reliability of diagnosing input devices in both subsonic and supersonic flight modes with a stationary or non-stationary signal; detecting local features of signals.2 cl, 5 dwg |
申请公布号 |
RU2493549(C1) |
申请公布日期 |
2013.09.20 |
申请号 |
RU20120117516 |
申请日期 |
2012.04.28 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "AVIATSIONNAJA KHOLDINGOVAJA KOMPANIJA "SUKHOJ" |
发明人 |
TSAREV VALERIJ ANATOL'EVICH |
分类号 |
G01M15/14 |
主分类号 |
G01M15/14 |
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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