Prestress Optimal Design of Deployable Antenna Considering The Effect of Gravity

The prestress of deployable antenna reflector is designed for vacuum environment and tested on the ground. Which implies the effect of gravity has to be considered in order to get higher surface accuracy. In this paper, a new method for prestress design under gravity is proposed. A typical antenna mesh is simulated as an example. Results demonstrate the antenna mesh can be restored to the ideal shape after removing the gravity.