This paper presents a new technique for precursor identification in high-speed compressors. The technique is a pseudo-correlation integral method referred to as the correlation method. To provide a basis for comparison, the traveling wave energy technique, which has been used extensively to study prestall data, is also briefly presented and applied. The correlation method has a potential advantage over the traveling wave energy method because it uses a single sensor for detection. It also requires no predisposition about the expected behavior of the data to detect “changes” in the behavior of the compressor. Both methods are used in this study to identify stall precursive events in the pressure fluctuations measured from circumferential pressure transducers located at the front face of the compressor rig. The correlation method successfully identified stall formation or changes in the compressor dynamics from data captured from four different configurations of a NASA Lewis single-stage high-speed compressor while it was transitioned from stable operation into stall. This paper includes an exposition on the use of nonlinear methods to identify stall precursors, a description of the methodologies used for the study, information on the NASA high-speed compressor rig and experimental data acquisition, and results from the four compressor configurations. The experimental results indicate that the correlation method provides ample warning of the onset of rotating stall at high speed, in some tests on the order of 2000 rotor revolutions. Complementary features of the correlation method and the traveling wave energy method are discussed, and suggestions for future developments are made.
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e-mail: mbright@limspop.lerc.nasa.gov
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July 1997
Research Papers
Stall Precursor Identification in High-Speed Compressor Stages Using Chaotic Time Series Analysis Methods
M. M. Bright,
M. M. Bright
NASA Lewis Research Center, Advanced Controls and Dynamics Branch, Cleveland, OH 44135
e-mail: mbright@limspop.lerc.nasa.gov
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H. K. Qammar,
H. K. Qammar
Department of Chemical Engineering, The University of Akron, Akron, OH 44325
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H. J. Weigl,
H. J. Weigl
Gas Turbine Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
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J. D. Paduano
J. D. Paduano
Gas Turbine Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
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M. M. Bright
NASA Lewis Research Center, Advanced Controls and Dynamics Branch, Cleveland, OH 44135
e-mail: mbright@limspop.lerc.nasa.gov
H. K. Qammar
Department of Chemical Engineering, The University of Akron, Akron, OH 44325
H. J. Weigl
Gas Turbine Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
J. D. Paduano
Gas Turbine Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139
J. Turbomach. Jul 1997, 119(3): 491-499 (9 pages)
Published Online: July 1, 1997
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Received:
February 1, 1996
Online:
January 29, 2008
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Bright, M. M., Qammar, H. K., Weigl, H. J., and Paduano, J. D. (July 1, 1997). "Stall Precursor Identification in High-Speed Compressor Stages Using Chaotic Time Series Analysis Methods." ASME. J. Turbomach. July 1997; 119(3): 491–499. https://doi.org/10.1115/1.2841148
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