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Model-based control of cavity oscillations. I - Experiments

Williams, David R. and Rowley, Clarence W. and Colonius, Tim and Murray, Richard M. and MacMartin, Douglas G. and Fabris, Drazin and Albertson, Julie (2002) Model-based control of cavity oscillations. I - Experiments. In: 40th AIAA Aerospace Sciences Meeting & Exhibit, 14-17 January 2002, Reno, NV.

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An experimental investigation of acoustic mode noise suppression was conducted in a cavity using a digital controller with a linear control algorithm. The control algorithm was based on flow field physics similar to the Rossiter model for acoustic resonance. Details of the controller and results from its implementation are presented in the companion paper by Rowley, et al. Here the experiments and some details of the flow field development are described, which were done primarily at Mach number 0.34 corresponding to single mode resonance in the cavity. A novel method using feedback control to suppress the resonant mode and open-loop forcing to inject a non-resonant mode was developed for system identification. The results were used to obtain empirical transfer functions of the components of resonance, and measurements of the shear layer growth for use in the design of the control algorithm.

Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription Paper Paper
Rowley, Clarence W.0000-0002-9099-5739
Colonius, Tim0000-0003-0326-3909
Murray, Richard M.0000-0002-5785-7481
MacMartin, Douglas G.0000-0003-1987-9417
Alternate Title:Model-Based Control of Cavity Oscillations – Part 1: Experiments
Additional Information:© 2002 by David R. Williams. Published by the American Institute of Aeronautics and Astronautics, Inc. with permission. Published Online: 22 Aug 2012. We are grateful for the support provided by the Air Force Office of Scientific Research through contract F49620-98-1-0276. The program was managed by Dr. Steven Walker. Actuator development at IIT was done by Mr. Byung-Hun Kim with partial support from the Aerospace Illinois: a NASA Space Grant Consortium. A special thanks goes to Mr. Ken Ostasiewski, Mr. Tim Hayden and SSgt. Buddy Johns for their invaluable assistance during the experiments over the last three years.
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)F49620-98-1-0276
Illinois Space Grant ConsortiumUNSPECIFIED
Subject Keywords:Aerospace Systems, Operations and Life Cycle
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AIAA Paper2002-0971
Record Number:CaltechAUTHORS:20190718-165126408
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97261
Deposited By: Melissa Ray
Deposited On:23 Jul 2019 22:22
Last Modified:16 Nov 2021 17:30

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