Indirect Measurement of Rotor Dynamic Imbalance for Control Moment Gyroscopes via Gimbal Disturbance Observer
نویسندگان
چکیده
منابع مشابه
Modelling of Gimbal Control Moment Gyro and Analysis of Gimbal Disturbance Impact
Original scientific paper Control Moment Gyroscope is one of the main sources of disturbance affecting the accuracy of attitude control system in the spacecraft. This paper concentrates on analysing and testing the micro-vibrations produced by CMG. To analyse its disturbance features systematically, the mechanical features of flywheel, frame and the entire CMG will be firstly studied, and then ...
متن کاملAdaptive Control of Double-Gimbal Control-Moment Gyro with Unbalanced Rotor
Adouble-gimbalcontrol-momentgyro (CMG) ismodeled usingLagrange’s equations,and an adaptive feedback control law is developed to follow a commandedCMG motion. The control law does not require knowledge of the mass properties of the CMG. A Lyapunovargument is used to prove that command following is achieved globally with asymptoticconvergence. Numerical simulationsare performed to illustrate the ...
متن کاملMicro-Gyroscopes with Dynamic Disturbance Rejection
This paper reports a novel micromachined gyroscope design with inherent disturbance-rejection capabilities. The proposed approach is based on increasing the degrees-of-freedom (DOF) of the oscillatory system by the use of two independently oscillating proof masses. Utilizing dynamical ampli cation in the 4-DOF system, inherent disturbance rejection is achieved, providing reduced sensitivity to ...
متن کاملNonredundant Single-Gimbaled Control Moment Gyroscopes
Two objectives dominate consideration of control moment gyroscopes for spacecraft maneuvers: high torque (equivalentlymomentum) and singularity-free operations.This paper adds to the significant bodyof research toward these two goals using a minimal three-control-moment-gyroscope array to provide significant singularity-free momentum performance increase spherically (in all directions) by modif...
متن کاملRobust H_∞ Controller design based on Generalized Dynamic Observer for Uncertain Singular system with Disturbance
This paper presents a robust ∞_H controller design, based on a generalized dynamic observer for uncertain singular systems in the presence of disturbance. The controller guarantees that the closed loop system be admissible. The main advantage of this method is that the uncertainty can be found in the system, the input and the output matrices. Also the generalized dynamic observer is used to est...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sensors
سال: 2018
ISSN: 1424-8220
DOI: 10.3390/s18061873