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International Journal of Aerospace Engineering
Volume 2017, Article ID 4104212, 11 pages
Research Article

Reduced Actuator Set for Pressure Control and Thrust Distribution for Multinozzle Propulsion Systems

1Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
2Chungnam National University, Daejeon 34134, Republic of Korea
3Agency for Defense Development, Daejeon 34186, Republic of Korea

Correspondence should be addressed to Yeerang Lim;

Received 28 November 2016; Revised 13 March 2017; Accepted 20 March 2017; Published 8 May 2017

Academic Editor: Mahmut Reyhanoglu

Copyright © 2017 Yeerang Lim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This study investigated an approach to reduce the number of actuators used for internal pressure control and thruster allocation in a multinozzle solid propulsion system. In the proposed design, the throat areas of four divert nozzles are controlled by only three actuators, and chamber pressure maintenance and thrust distribution are achieved by controlling the throat areas. Using the proposed actuator set, thrust allocation can be accomplished in a more efficient way than when independent actuators are employed for each nozzle.