This two-part paper presents general methodologies for the evaluation of passive compressor stabilization strategies using tailored structural design and aeromechanical feedback control (Part I), and quantitatively compares the performance of several aeromechanical stabilization approaches which could potentially be implemented in gas turbine compression systems (Part II). Together, these papers offer a systematic study of the influence of ten aeromechanical feedback controllers to increase the range of stable compressor operation, using static pressure sensing and local structural actuation to postpone modal stall inception. In this part, the stability of aeromechanically compensated compressors was determined from the linearized structural-hydrodynamic equations of stall inception. New metrics were derived, which measure the level of aeromechanical damping, or control authority of aeromechanical feedback stabilization. They indicate that the phase between the pressure disturbances and the actuation is central to assess the impact of aeromechanical interactions on compressors stability.
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January 2004
Technical Papers
Tailored Structural Design and Aeromechanical Control of Axial Compressor Stall—Part I: Development of Models and Metrics
O. G. McGee,
O. G. McGee
Department of Civil and Environmental Engineering and Geodetic Science, The Ohio State University, Columbus, OH 43210
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M. B. Graf,
M. B. Graf
Mars and Company, 124 Mason Street, Greenwich, CT 06830
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L. G. Fre´chette
L. G. Fre´chette
Department of Mechanical Engineering, Columbia University, New York, NY 10027
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O. G. McGee
Department of Civil and Environmental Engineering and Geodetic Science, The Ohio State University, Columbus, OH 43210
M. B. Graf
Mars and Company, 124 Mason Street, Greenwich, CT 06830
L. G. Fre´chette
Department of Mechanical Engineering, Columbia University, New York, NY 10027
Contributed by the International Gas Turbine Institute and presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Atlanta, GA, June 16–19, 2003. Manuscript received by the IGTI Dec. 2002; final revision Mar. 2003. Paper No. 2003-GT-38975. Review Chair: H. R. Simmons.
J. Turbomach. Jan 2004, 126(1): 52-62 (11 pages)
Published Online: March 26, 2004
Article history
Received:
December 1, 2002
Revised:
March 1, 2003
Online:
March 26, 2004
Citation
McGee, O. G., Graf, M. B., and Fre´chette, L. G. (March 26, 2004). "Tailored Structural Design and Aeromechanical Control of Axial Compressor Stall—Part I: Development of Models and Metrics ." ASME. J. Turbomach. January 2004; 126(1): 52–62. https://doi.org/10.1115/1.1644555
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