The Stability Analysis of a Tether for a Segmented Space Elevator

The space elevator system is a tether used to solve low-cost transportation. Its high efficiency, large load and other characteristics have broad application prospects in the aerospace field. stability analysis foundation of research. Based on new segment model, this paper, at equilibrium point analyzed by Lyapunov theory; And based criterion that change rate restoring torque anchor tension are greater than 0, maximum offset angle inside outside equatorial plane analyzed. results show stable near point; deflection related design stress When plane, it will only lose because reaches value; due small, tensile force reduced when large, recovery better plane.