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Proceedings Paper

Experimental techniques for actuation, sensing, and measurement of rotating stall dynamics in high-speed compressors
Author(s): Roland G. Berndt; Harald J. Weigl; James D. Paduano; Alan H. Epstein
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Paper Abstract

This report describes the experiemental design and validation of sensing and actuation hardware to be incorporated into a NASA Lewis Research Center high-speed compressor test rig. The purpose of the control-augmented rig will be to investigate the dynamics of rotating stall in high-speed compressors, and to demonstrate stabilization of the perturbations which lead to rotating stall and surge. The overall experimental design is first described. Then the design of jet injection actuation is presented, including mechanical/fluid mechanical design rules, bandwidth limitations imposed by the electromagnetic valve, and by the fluid mechanics, and experimental validation of the actuation system. Specialized probes for 3D high-response flow measurements are then discussed, along with experimental validation of their performance. Finally, procedures for modeling and measurement of aerodynamic oscillation modes will be described.

Paper Details

Date Published: 30 May 1995
PDF: 20 pages
Proc. SPIE 2494, Sensing, Actuation, and Control in Aeropropulsion, (30 May 1995); doi: 10.1117/12.210516
Show Author Affiliations
Roland G. Berndt, Massachusetts Institute of Technology (United States)
Harald J. Weigl, Massachusetts Institute of Technology (United States)
James D. Paduano, Massachusetts Institute of Technology (United States)
Alan H. Epstein, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 2494:
Sensing, Actuation, and Control in Aeropropulsion
James D. Paduano, Editor(s)

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