MONITORING OF AERODYNAMIC LOAD AND DETECTION OF STALL IN MULTISTAGE AXIAL COMPRESSORS

被引：4
|
作者：
HONEN, H
GALLUS, HE
机构：
[1] Institut fur Strahlantriebe und Turboarbeitsmaschinen, Rheinisch-Westfalische Technische Hochschule Aachen, Aachen
来源：
JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME | 1995年 / 117卷 / 01期
关键词：
D O I：
10.1115/1.2835645
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The unsteady flow in a single-stage axial flow compressor at different operating conditions has been investigated with hot-wire and hot-film probes to find out the influence of the aerodynamic compressor load on the periodic fluctuations. These results are compared with measurements in the last stages of a multistage high-pressure compressor of a gas turbine for normal operation and under stall conditions. From the patterns of the frequency spectra of the measuring signals a parameter for the detection of the approach to the stability line of a compressor is derived. A method for the on-line monitoring of the aerodynamic load is presented. Based on these results a monitoring system has been developed. First experiences with this system, applied to two multistage compressors, are reported.
引用
收藏
页码：81 / 86
页数：6
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