[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5140/JASS.2006.23.4.397

A SINGULARITY AVOIDANCE STEERING LAW BASED ON THE MINIMIZATION TECHNIQUE

Oh, Hwa-Suk (School of Aerospace and Mechanical Engineering, Hankuk Aviation University)
Lee, Bong-Un (School of Aerospace and Mechanical Engineering, Hankuk Aviation University)
Rhee, Seung-Wu (Korea Aerospace Research Institute)
Lee, Seon-Ho (Korea Aerospace Research Institute)

Publication Information

Journal of Astronomy and Space Sciences / v.23, no.4, 2006 , pp. 397-404 More about this Journal

Abstract

Geometric singularity problems are principle difficulties of single-gimbal control moment gyros in spacecraft attitude control. To overcome these singularities, many steering logics have been studied. In this paper, a new null motion steering law is suggested, which is based on the minimization of the directional components of output torque with respect to the required torque. The suggested steering law has been simulated and verified to work well around several critical singular points which have been classified as testing points of avoidance algorithm in previous literatures.

Keywords

CMG; null motion; steering law; singularity avoidance;

Citations & Related Records

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