Volume 6: Turbo Expo 2003, Parts a and B 2003
DOI: 10.1115/gt2003-38976
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Tailored Structural Design and Aeromechanical Control of Axial Compressor Stall: Part II — Evaluation of Approaches

Abstract: A theoretical evaluation was conducted delineating how aeromechanical feedback control can be utilized to stabilize the inception of rotating stall in axial compressors. Ten aeromechanical control methodologies were quantitatively examined based on the analytical formulations presented in the first part of this paper (McGee et al, 2003a). The maximum operating range for each scheme is determined for optimized structural parameters, and the various schemes are compared. The present study shows that the most pro… Show more

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“…However, some additional questions remain for high-speed devices. The motivation of the present modeling development and evaluation is to address three overarching questions: (1) What is the high-speed stall control capability of other aeromechanical feedback stabilization strategies, and how do they compare to that modeled and demonstrated by Gysling and Greitzer (1995), McGee et al (2004), and Frechette et al (2004)? (2) Are there destabilizing high-speed, compressible fluid-structural interactions which should be avoided through tailored structural design?…”
Section: Objectives and Scope Of Studymentioning
confidence: 99%
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“…However, some additional questions remain for high-speed devices. The motivation of the present modeling development and evaluation is to address three overarching questions: (1) What is the high-speed stall control capability of other aeromechanical feedback stabilization strategies, and how do they compare to that modeled and demonstrated by Gysling and Greitzer (1995), McGee et al (2004), and Frechette et al (2004)? (2) Are there destabilizing high-speed, compressible fluid-structural interactions which should be avoided through tailored structural design?…”
Section: Objectives and Scope Of Studymentioning
confidence: 99%
“…However, as the compressor approaches higher speeds this theory collapses and the fluid is, in fact, compressible. Since the current study involves high-speed compressible fluid, the low-speed stability model of McGee et al (2004) and Frechette et al (2004) had to be modified to account for variable shaft speed, variable axial velocity, variable density ratio, and variable temperature ratio to incorporate compressibility affects.…”
Section: 3 Compressible Rotating Stall Inception Modelmentioning
confidence: 99%
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