Gas generator pressure control in throttleable ducted rockets: a classical and adaptive control approach

Date
2015
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Source Title
Proceedings of the 51st AIAA/SAE/ASEE Joint Propulsion Conference
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Publisher
American Institute of Aeronautics and Astronautics (AIAA)
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Pages
1 - 13
Language
English
Type
Conference Paper
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Abstract

This paper describes the control of gas generator pressure in throttleable ducted rockets using nonlinear adaptive control as well as classical control approaches. Simulation results using the full nonlinear and time-varying dynamics of the gas generator are reported in both classical controller and adaptive controller cases. "Closed-loop Reference Model" structure is used together with the adaptive controller to improve transient response. Controllers are simulated to test their robustness by introducing uncertinities, disturbances and noise to the system. Cold Air Test Plant (CATP) is used as the test facility to compare the controllers and validate the results from simulations. Moreover, damping effect of CRM to oscillations in adaptive controller case is observed in CATP tests.

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Keywords
Adaptive control, Classical control, Closed-loop reference model, Cold air test plant, Pressure control, Throttleable ducted rockets, Model reference adaptive control
Citation
Published Version (Please cite this version)