Yang, V. and Sinha, A. and Fung, T. (1988) Linear theory of active control of pressure oscillations in combustion chambers. AIAA Papers, AIAA-88-2944 . American Institute of Aeronautics and Astronautics . https://resolver.caltech.edu/CaltechAUTHORS:20101202-115230138
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Abstract
Active control of longitudinal pressure oscillations in combustion chambers has been studied theoretically using a digital state-feedback control technique. The formulation is based on a generalized wave equation which accommodates various influences on combustion, mean flow, unsteady motions, and contol actions. After a procedure equivalent to the Galerkin method, a system of ordinary differential equation governing the amplitude of each oscillatory mode is derived, serving as a basis for the controller design. The control actions is provided by a finite number of point acutators, with the instantaneous chamber conditions monitored by a few sensors. Several important control aspects such as sampling period, locations of sensors and controllers, controllability and observabi1ity have been investigated. As a specific example, the case involving two controlled and two residual (uncontrolled) modes is studied. The control and observation spillover phenomena due to the residual modes are clearly demonstrated.
Item Type: | Report or Paper (Report) | ||||||
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Additional Information: | © 1988, American Institute of Aeronautics and Astronautics. | ||||||
Group: | Guggenheim Jet Propulsion Center | ||||||
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Series Name: | AIAA Papers | ||||||
Issue or Number: | AIAA-88-2944 | ||||||
Record Number: | CaltechAUTHORS:20101202-115230138 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20101202-115230138 | ||||||
Official Citation: | Linear theory of active control of pressure oscillations in combustion chambers YANG, VIGOR, Pennsylvania State University, University Park; SINHA, ALOK, Pennsylvania State University, University Park AIAA-1988-2944 ASME, SAE, and ASEE, Joint Propulsion Conference, 24th, Boston, MA, July 11-13, 1988 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 21128 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | Ruth Sustaita | ||||||
Deposited On: | 04 Dec 2010 00:16 | ||||||
Last Modified: | 09 Mar 2020 13:19 |
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