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Proceedings Paper

Attractor dimension analysis of a single-stage high-speed compressor
Author(s): Michelle M. Bright; Helen K. Qammar; Tom T. Hartley
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Paper Abstract

This paper presents a study of the dynamics for a single-stage, high-speed compressor core, specifically, the NASA Lewis rotor stage 35. Due to the overall blading design for this advanced core compressor, each stage has considerable tip loading and higher speed than most compressor designs, thus the compressor operates closer to stall. Due to the operation of this compressor close to the stall line, it is important to quickly predict the onset of stall. The onset of rotating stall is explained as bifurcations in the dynamics of axial compressors. Data taken from the compressor during a rotating stall event is analyzed. Through the use of a dimension analysis technique, the attractor dimension is determined during the bifurcations leading to rotating stall. The intent of this study is to examine the behavior of precursive stall events so as to predict the entrance into rotating stall. This information may provide a better means to identify, avoid, or control the catastrophic event of rotating stall formation in high-speed compressor cores.

Paper Details

Date Published: 30 May 1995
PDF: 7 pages
Proc. SPIE 2494, Sensing, Actuation, and Control in Aeropropulsion, (30 May 1995); doi: 10.1117/12.210513
Show Author Affiliations
Michelle M. Bright, NASA Lewis Research Ctr. (United States)
Helen K. Qammar, Univ. of Akron (United States)
Tom T. Hartley, Univ. of Akron (United States)

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

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