  Satellites and their instruments are subject to the motion stability
throughout their lifetimes. The reliability of the large flexible space
structures (LFSS) is particularly important for the motion stability of
satellites and their instruments. In this paper, the reliability analysis of
large flexible space structures is conducted based on Bayesian support vector
regression (SVR). The kinematic model of a typical large flexible space
structure is first established. Based on the kinematic model, the surrogate
model of the motion of the large flexible space structure is then developed to
further reduce the computational cost. Finally, the reliability analysis is
conducted using the surrogate model. The proposed method shows high accuracy
and efficiency for the reliability assessments of the typical large flexible
space structure and can be further developed for other LFSS.
