Stability Area of a Spacecraft's Partially Invariant Centre of Mass Motion Stabilization System

3rd International Conference on Aeronautical Materials and Aerospace Engineering

航空航天工程

Zosimovych, Nickolay^1

Intelligent Manufacturing Key Laboratory, Ministry of Education, Shantou University, Daxue Road 243, Shantou, Guangdong

515063, China^1

关键词: Accuracy;    Control actuators;    nonlinearity;    Performance limitations;    Stability margins;    Stabilization controllers;    Stabilization systems;    Transition process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/608/1/012026/pdf
DOI  :  10.1088/1757-899X/608/1/012026

学科分类：航空航天科学

来源: IOP

【 摘 要 】

In practice, a spacecraft's stabilization system, which is partially invariant to the disturbing moment, is the easiest to implement. The velocity performance limitation of the control actuator has the most influence upon stability of the system among all the nonlinearities considered in the mathematical modelling. Therefore, we shall consider a model of an invariant stabilization system with due regard to nonlinearity. For the system under consideration, it is possible to construct lines of equal values of the auto oscillation amplitude in a two-parameter plane. The study of the stability of the proposed partially invariant stabilization system revealed that it is possible to ensure sufficient stability margins in the system under consideration by choosing parameters for the stabilization controller. At the same time, it allows to provide high quality of the transition process.