Abstract
A novel deployable array mechanism is proposed in this paper which provides a new concept for the future large SAR antenna for a spacecraft. This deployable array mechanism, which is composed by several main array panels and associate array panels, is able to expand in two dimensions with only one degree of freedom. The structure and the skeleton of the novel deployable mechanism are described at first. And then, the topology and the mobility of this mechanism are presented and investigated. To avoid the interference, the geometric size of the associate array panels has been studied. For the purpose of obtaining the driving torque conveniently, the simplified dynamics model for this mechanism has been established. Finally, the simulations are conducted to validate the feasibility and correction of the above model and analysis. And the improvement for this structure inspired by origami art is presented. The achievement in this research helps to develop the new deployable mechanisms in aerospace field.
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