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http://dx.doi.org/10.5139/JKSAS.2020.48.1.35

Design of Electromechanical Actuator Capable of Simultaneous Control of Aerodynamic and Thrust Vector  

Lee, Ha Jun (Agency for Defense Development)
Yoon, Kiwon (Agency for Defense Development)
Song, In Seong (Agency for Defense Development)
Park, Chang Kyoo (Agency for Defense Development)
Lee, Young Cheol (Agency for Defense Development)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.48, no.1, 2020 , pp. 35-42 More about this Journal
Abstract
Electromechanical Actuator(EMA) for flight vehicles generally serves to control the fin deflection angle or the thrust vector angle. This paper deals with design and development of EMA for both aerodynamic control and thrust vector control. In this paper, a novel compact EMA is proposed that can simultaneously control both the tail fin and the jet vane with one actuator and detach the jet vane after vertical launch and rapid turn of the flight vehicle so as to increase efficiency during flying to target. To do this, we designed the EMA using a push-push link mechanism and derived a mathematical model. The mathematical model is validated by comparing simulation result and experimental data. The performance and reliability of the proposed EMA have been verified through performance test, environmental test and ground test. The proposed EMA is expected to be useful as an EMA for flight vehicles because of its simple and compact structure, as well as its performance and reliability.
Keywords
Electromechanical Actuator; Jet Vane; Aerodynamic Control; Thrust Vector Control;
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