The microvibrations generated by flywheels running at full speed onboard high precision spacecrafts will affect stability of the spacecraft bus and further degrade pointing accuracy of the payload.
We find that when the orbit attitude coupling is strong, the mass distribution of the spacecraft dominates the stability of the relative equilibria; whereas when the orbit attitude coupling is weak, both the mass distribution and the traditional stationary orbit stability have significant effects on the stability.
Required stability of spacecraft attitude control, better than 1 pixel while taking three images, has been confirmed during the initial test phase in the Venus orbit.
The stability of the spacecraft's attitude, which is designed for the other cameras onboard Akatsuki, is within 0.015 deg (Nakamura et al., 2011).
The necessary and sufficient conditions for the stability of the spacecraft's equilibrium positions are constructed using Lyapunov's direct method.
In the previous study, plasma sprayed alumina (PSA) coating was established as a new and better TCM for spacecrafts, in view of its stability and reliability compared to the traditional TCMs [R.M. Li, S.C. Joshi, H.W. Ng, Presented in 2nd International Conference on Materials for Advanced Technologies & IUMRS, Singapore, 2003, pp. 1 4].
The stability conditions for the spacecraft attitude motion for robustness against uncertainties and disturbances are derived to establish the regions of asymptotic 3-axis attitude stabilization.
An analytical method is proposed to study the attitude stability of a triaxial spacecraft moving in a circular Keplerian orbit in the geomagnetic field.
Second, an adaptive neural network (NN) controller with the employed radial basis function (RBF) is designed to guarantee the stability of the underactuated rigid spacecraft system and the tracking performance.
This straightforward attitude recovery technique does not require accurate estimates of spacecraft inertias and various simulation results demonstrate that stability is not affected by various inertia ratios.
