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A Study on Command Generation Methods of Reaction Control System for Upper Stage Attitude Control of Launch Vehicles  

Sun, Byung-Chan (발사체체계설계팀)
Park, Yong-Kyu (발사체체계설계팀)
Oh, Choong-Suk (발사체체계설계팀)
Choi, Kyung-Jun (발사체체계설계팀)
Roh, Woong-Rae (발사체체계설계팀)
Publication Information
Aerospace Engineering and Technology / v.13, no.1, 2014 , pp. 44-54 More about this Journal
Abstract
This paper suggests two kinds of reaction control system command generation methods for upper stage attitude control of launch vehicles. The reaction control system is assumed to consist of two sets of three nozzles. One operation technology is based on mixed attitude error functions, and the other is based on command mixing functions. Both are compared via simulations. The simulation results show that the latter is comparatively preferable in terms of interference among control axes, independency of controller design and analysis among axes, and prediction of flight performance of each control axis.
Keywords
launch vehicle; upper stage attitude control; command generation; reaction control system;
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