Asymptotic reduced-dimensional steering strategies for CMG singularity-free control |
| |
Authors: | Bong-Un Lee Hwa-Suk Oh Ja-Young Kang |
| |
Affiliation: | (1) School of Aerospace and Mechanical Engineering, Hankuk Aviation University, 412-791 Goyang, Korea;(2) Department of Aeronautical Science and Flight Operation, Hankuk Aviation University, 412-791 Goyang, Korea |
| |
Abstract: | The geometric singularity problem is one of principal difficulty when using single-gimbal control moment gyros as spacecraft
attitude control devices. To overcome singularity, new steering logics are suggested in this paper which results in a reduction
in the difficulty of generating gimbal rates around a singular state. One of the suggested steering laws presented is the
reduced dimensional singular value decomposition steering law, which adopts the singular value decomposition in reduced dimensional
forms. Two other steering laws make use of the least square method in reduced dimensional forms. All of the suggested steering
laws have been generated for the compensation of the torque insufficiency. These logics are verified mathematically and simulations
at a singular condition and non-singular condition are performed to see how well they work. |
| |
Keywords: | CMG Steering law Singularity-free control Switching parameter |
本文献已被 SpringerLink 等数据库收录! |